How to choose a smart bracelet with heart rate and blood pressure measurement

How does a fitness bracelet measure blood pressure?

You need to understand that finding a fitness bracelet that will perfectly measure blood pressure is almost impossible. They will all have a certain error and cannot compare with an automatic or mechanical blood pressure monitor. The reason is completely different measurement methods.

Conventional blood pressure monitors are equipped with a cuff that allows you to determine the upper and lower values ​​of blood pressure by shocks and changes in pressure in the cuff. Smart watches and fitness bracelets, with very rare exceptions (Omron HeartGuide), do not have such a cuff and, in fact, pressure is not measured, but is calculated by software based on the indicators of heart rate sensors, rhythm and pulse wave speed.

You can read more about how a fitness bracelet measures pressure, the principle and accuracy of operation in this article.

Important! A fitness bracelet with a blood pressure monitor is not a medical device!
It is not recommended to use the data obtained with its help to adjust treatment or take medications. For informational purposes only.

How does a fitness bracelet with blood pressure measurement work?

The device is equipped with touch sensors. They consist of piezoelectric elements that generate electricity when pressed. The greater the resistance of the piezo fibers, the stronger the signal. And vice versa.

The sensors measure the pulse on the wrist (the sensitivity of the sensors depends on the material of manufacture). The pulse wave presses on the piezoelements. Electronic signals appear. The software accepts them. Next, the information is processed and appears on the screen in the form that is familiar to us.

Almost all wrist gadgets display data on a display. However, there are models that lack this function. In this case, you can find out your blood pressure on your smartphone using a special application.

Measurement accuracy and error

The accuracy of measuring pressure with a fitness bracelet largely depends on the fulfillment of a number of conditions and recommendations:

• Indicate in the application your height, weight, age, gender and normal blood pressure at rest;
• Before taking measurements, you should not drink tea, coffee, or energy drinks;
• Ensure that the sensor fits as tightly as possible to your hand;
• Before measuring, you need to sit down and fix your hand at heart level;
• During the measurement, try not to talk or move.

Accuracy is also affected by factors such as physical activity, emotional stress, medications, etc.

When all these recommendations are followed, the measurement error is on average 10-15%. That is, you definitely shouldn’t expect 100% accuracy, but the results will be enough to understand whether the indicators are within the normal range.

Principle of operation

The operating principle of a bracelet that measures blood pressure and pulse is slightly different from conventional tonometers with cuffs.

The device reads the speed at which the pulse wave propagates, the electrocardiogram and other indicators, and then analyzes the data obtained. As a result of the calculations, exact numbers of pressure and pulse appear on the display. In most models, you first need to set your gender, age, weight and other physiological indicators. This is necessary for more complete information. An accurate result is obtained only if all rules of use are followed:

1. It is better to take measurements on your left hand. Although in more expensive devices this does not matter.
2. It is advisable to carry out the procedure in a sitting position, placing your hand at heart level.
3. It is not advisable to measure blood pressure after eating food, as the readings will be inaccurate.
4. Before measuring, exclude the influence of any pacemakers on the body.

You can get the result within 30–120 seconds.
The devices provide accurate information 80% of the time. Deviations of several units are possible. All fitness bracelets that measure blood pressure and heart rate have similar functions. They are based on a device called an accelerometer. It is able to detect any changes in indicators.

Such devices also have a lot of additional functions. With their help you can:

• record geographic location. This opportunity is provided by models equipped with a satellite navigation system;
• measure body temperature, ambient temperature, level of sweating, if the device has a humidity sensor;
• to burn calories;
• recognize the type of activity.

A program for tablets and smartphones is installed on the devices. The data read by the device enters the program via Bluetooth or Wi-Fi. It processes them and produces the result in the form of a graph or diagram.

After reviewing the indicators, you can adjust your workload and lifestyle by creating an optimal schedule. This will avoid overwork and maintain excellent health.

Features may vary between models. Everyone will choose the right one for themselves. Fitness trackers are worthy competition to smart watches, and they are several times cheaper.

GSMIN WR11 (2020) - bracelet with blood pressure measurement and ECG

Key Features

• Year of release: 2020
• Screen: color, 0.96 inches
• Processor: NRF 52832
• Battery: 130 mAh
• Battery life: 5 – 7 days
• Water protection: IP67
• Sensors: accelerometer, heart rate monitor, ECG sensor
• Warranty: 12 months
• Price: 5,900 rubles

Find out the price

GSMIN WR11 (2020) is the successor to the fairly popular WR11 fitness bracelet, released in 2020. The 2020 model has many features and capabilities, the main ones being:

• Optical heart rate sensor;
• PPG sensor for measuring pressure;
• Sensor for taking ECG;
• Accelerometer for counting steps, calories and distance;
• Sleep quality assessment;
• Weather forecast;
• Alarm;
• Notifications about calls and messages.

GSMIN WR11 is equipped with a 0.96-inch TFT color screen and this is one of the main disadvantages of this gadget. These types of screens fade greatly in bright light, making information difficult to read. There are no such problems indoors.

Despite the impressive functionality, the autonomy of the bracelet is not bad. One charge of a 130 mAh battery is enough for 5 – 7 days of autonomous use, depending on the intensity.

As for accuracy, judging by the reviews, the error in counting steps, calories and pulse is approximately 5%, and the error in measuring pressure, subject to all the above recommendations, varies from 10 to 15 units.

This fitness bracelet is available in 4 colors: black, blue, red, green. Price – 5,900 rubles in the Gsmin online store.

Pros:

• Impressive functionality
• Good accuracy of blood pressure measurement
• ECG function
• Charging via USB port
• 12 month warranty

Minuses:

• High price
• Only three sports modes
• The screen goes blind in the sun
• IP67 protection not suitable for swimming

With and without synchronization

Some fitness bracelets work autonomously from a smartphone; others - only in conjunction with a phone and computer. But with integration there will be more opportunities, and one of the most important is storing data over a long period of time and tracking dynamics.

It is important to consider these operating modes when choosing a fitness gadget for an elderly relative as a gift: if it is a model linked to a device, then make sure that the new owner of the bracelet is fluent in using a smartphone and a computer and will be able to control the new gadget. Or be prepared to help him with this.

Statistics show that older adults in the 21st century are eager to learn technology. Thus, Facebook already has about 40 million users over 65, and in 2020 this number increased by 20% (in 2017, sociologists found only about 20 million Facebook accounts with ages 65+). Those who have not yet mastered applications and gadgets will do so after a few years, following the example of friends or family. A new gadget with health indicators can become additional motivation for an elderly person.

But a fitness bracelet without integration with other devices will also bring a lot of benefits. In offline mode, the gadget reads your heart rate and number of steps, and also shows the time; this is enough to check your performance throughout the day. Setting up such a gadget is no more difficult than a simple wristwatch, and the battery charge lasts for several days.

Models with integration are provided with wider functionality. They can measure not only pulse, but also blood pressure; They also offer an analysis of the situation (how normal the heart rate is, whether the owner moves and sleeps enough) and gives advice on how to improve the organization of the regime for the elderly.

Applications for fitness gadgets on smartphones and computers store large amounts of data: for several months and even years of use. Graphs of heart rate, sleep, and activity can help a doctor collect anamnesis and make a diagnosis for an older person.

The bracelet is “linked” to another device via Wi-Fi or Bluetooth.

No.1 DT58 – fitness bracelet with accurate blood pressure measurement

Key Features

• Year of release: 2019
• Screen: color, LCD IPS
• Diagonal: 1.14 inches
• Processor: NRF 52832
• Battery: 120 mAh
• Battery life: 5 – 7 days
• Water protection: IP68
• Sensors: accelerometer, heart rate monitor, ECG sensor
• Price: from 18$

Find out the price

DT58 is one of the no-name fitness bracelets that is sold under many brands and names. In stores it can be found under the name KSUN KSS701, SMART NEOBAND, etc. We had a copy from brand No.1 for review, and we have to admit, we liked the bracelet.

No.1 DT58 is equipped with a 1.14-inch diagonal color screen with a resolution of 240*135 pixels. Unfortunately, it is not touch sensitive. You can switch between functions using the touch button at the bottom of the screen, which also serves as an electrode for the ECG function. Another electrode is located on the back panel, next to the optical heart rate sensor.

During testing, the DT58 showed fairly high accuracy in measuring pressure. The deviation of the values ​​was approximately 5 - 10 units, which is very good. The pulse is also measured quite accurately. But with steps and calories, not everything is so simple. On average, the bracelet added about 10 – 15%, taking into account the “false” steps.

In addition to standard functions for a fitness bracelet, the DT58 also provides information about the weather, altitude, barometric pressure and even ultraviolet radiation levels. At the beginning of this year, a PRO version of the fitness bracelet was also released, in which all existing sensors were joined by a temperature sensor that measures body temperature with an accuracy of 0.1 degrees.

No cables or charging cradle are needed to charge the device. Under one of the halves of the strap there is a USB port that can be connected to the connector of a laptop, Power Bank or power supply. One charge of a 120 mAh battery is enough for 5 - 7 days of active use.

Go to review No.1 DT58

Where can I buy?

$20.15 on Aliexpress

$18.18 on Aliexpress

Pros:

• Inexpensive
• Multifunctionality
• High accuracy blood pressure measurement
• ECG function
• Charging via USB port
• Big screen
• IP68 protection

Minuses:

• Interface in English
• The pedometer is lying
• Low quality materials

Popular manufacturers and models of bracelets

The fitness bracelet is produced by many major companies. The most popular of them are the following companies:

Some of the best models include the following.

The bracelet has a pressure and pulse meter. With its help, it is possible to monitor blood pressure readings in different body positions. The device is characterized by high accuracy.

• Waterproof. You can swim and dive freely with it.
• Large battery capacity. You can safely wear the device for 3 days.
• Availability of additional functions: measurement of oxygen level, number of calories, degree of physical activity.

The sensors available in this model have increased sensitivity, so accurate results are ensured.

The powerful battery of the E26 fitness bracelet will ensure stable operation for up to 3 days

Ginzzu GZ-301

• A good fitness bracelet with many functions. The build quality is high, the case is protected from dust and water. There is no need to charge the device often; once a week is enough. The device helps in measuring blood pressure and pulse rate.

He also reminds the patient that physical activity and adherence to the drinking regime are necessary. The bracelet is quite common in Russia, so purchasing it is easy.

Microwear X3

Quite a stylish fitness bracelet that has a large touch screen. The case is made of high-quality material, so it is very strong and durable. The build quality is excellent.

The device helps with the following:

• Measures blood pressure.
• Checks heart rate.
• Counts the number of steps.
• Calculates calories burned.
• Displays notifications that come to your phone.
• Shows the weather.
• Monitors the sleep phase.

You can adjust the screen brightness and synchronize with your computer.

Microwear X3, in addition to its functions, also looks stylish

GSMIN B3

It occupies a leading position among bracelets capable of measuring blood pressure. The device helps monitor blood pressure and pulse rate. It is also equipped with a pedometer and is able to monitor sleep quality.

The device is equipped with a strap made of silicone, which does not cause skin irritation or allergic reactions. The bracelet is highly resistant to moisture penetration. Therefore, you can safely swim in the pool or wash dishes with it.

The charging capacity of the device is quite large. It needs to be charged approximately once every 4 days.

SmartBand CK11

A good fitness bracelet that has a stylish design and high accuracy in measuring blood pressure and heart rate. The device is well assembled and has a durable body, protected from dust and moisture. In addition to measuring blood pressure and pulse, the bracelet has the following options:

1. Counting the number of steps.
2. Determining the number of calories.
3. Sleep quality monitoring.
4. Notification of the need to take water.
5. Tracking a person's emotional state.

The bracelet can also compile statistics of blood pressure readings and record all measurements. The device is compatible with platforms such as Android and IOS. It is enough to charge it once a week.

Thus, a fitness bracelet for measuring blood pressure and pulse is a convenient device that will become an indispensable accessory for the elderly, hypertensive patients and athletes. The device is easy to use, gives accurate readings, and has many additional functions.

Lemfo F07 – fitness bracelet with heart rate monitor and blood pressure

Key Features

• Year of release: 2020
• Screen: color, TFT
• Diagonal: 0.96 inches
• Resolution: 160*80 pixels
• Processor: Nordic nRF52832
• Battery: 110 mAh
• Battery life: 5 – 7 days
• Water protection: IP68
• Sensors: accelerometer, heart rate monitor
• Price: from 20$

The fitness bracelet has a color TFT display with a resolution of 80*160 pixels and a diagonal of 0.96 inches. Below the screen there is a touch button for cycling between functions. The energy-efficient Nordic nRF52832 chip is responsible for performance.

The built-in 110 mAh battery provides 5 – 7 days of battery life, depending on the intensity of use.

In terms of the number of functions, Lemfo F07 is not much different from all the above bracelets. He can:

• Measure pulse and blood pressure;
• Track sleep;
• Monitor three activity modes: running, cycling, swimming;
• Determine the level of blood saturation SpO2 (blood oxygen saturation);
• Count steps, calories burned and distance;
• Notify about calls and messages;
• Remind about sedentary activity;
• Much more.

If all recommendations are followed, Lemfo F07 provides a fairly high accuracy of blood pressure measurement. But, all data obtained is provided for informational purposes only and cannot be used to adjust treatment or serve as a reason for taking pills.

The gadget is available in black, blue, pink, purple and red colors.

Pros:

• Inexpensive
• Wide declared functionality
• IP68 protection
• Small error in blood pressure measurement

Minuses:

• The screen is difficult to read in bright light
• Not the best IBAND app
• Short battery life

HerzBand Classic ECG

Smart watch with ECG and HRV fatigue index function

Smart watches with HerzBand Classic cardiogram not only provide an overall picture of the state of the heart, but are also able to calculate the fatigue index. This specification will help the athlete understand how correctly the loads have been selected, as well as plan their activities and manage the stages of their recovery.

HerzBand Classic ECG is an effective way to monitor your health, available anytime, anywhere.

Bracelet features include:

• Heart beat monitoring
• ECG
• Blood pressure measurement
• Determination of the fatigue index (HRV)
• Counting steps, distance and calories burned
• Sleep tracking (phase recognition)
• Smart notifications (calls and SMS)
• Medication Alerts
• Reminders to move

All activity statistics for the day are collected in the application and displayed in a convenient format.

IP68 water protection allows you to use the bracelet in the pool while swimming. A 200 mAh battery ensures the device operates for up to 10 days (taking into account the intensity of use) and up to 20-30 days in standby mode.

The HerzBand Classic smart watch with ECG, blood pressure and pulse measurement costs $88, or 5,690 Russian rubles. Buy on Herzband.com

SG2 Smart Watch – a copy of the Samsung Galaxy Watch Active 2 with blood pressure measurement

Main characteristics

• Year of release: 2020
• Screen: color, AMOLED
• Diagonal: 1.19 inches
• Resolution: 390*390 pixels
• Processor: Nordic nRF52840
• Battery: 230 mAh
• Battery life: 5 – 10 days
• Water protection: IP68
• Sensors: accelerometer, heart rate monitor, ECG sensor
• Price: from 45$

Check price

SG2 Smart Watch is a new, but very promising smart watch model. Having very good characteristics and an impressive set of functions, the price of the device is quite affordable. This model is sold under many different brands, such as HerzBand, Lemfo, Microwear, etc.

Externally, the SG2 is a complete copy of the popular smartwatch Samsung Galaxy Watch Active 2. But, although the gadget looks like a watch, it is still more of a fitness tracker in the form of a watch. They do not have a full-fledged operating system, there is no ability to install additional applications, there is no GPS and memory for storing music. Nevertheless, the watch deserves attention.

They were equipped with a round AMOLED screen with a diameter of 1.19 inches with a resolution of 390*390 pixels. This is very rare for smartwatches in the budget segment. The Nordic nrf52840 processor, which can be found in many fitness bracelets, is responsible for performance.

The watch is powered by a 230 mAh battery. One charge is enough for 5 – 10 days of battery life, depending on the intensity of use.

SG2 Smart Watch has a huge range of functions:

• Blood pressure measurement;
• Taking an ECG;
• 24/7 heart rate monitoring;
• Measuring blood oxygen levels;
• Monitoring 10 sports modes;
• Step, calorie and distance counter;
• Sleep quality assessment;
• Notifications about calls, SMS and messages from social networks;
• Various reminders;
• Control your smartphone's camera and music;
• Alarm;
• Weather forecast, etc.

Where can I buy?

$45.99 on Aliexpress

$38.39 – 55.19 on Aliexpress

Detailed Specifications of SG2 Smart Watch

Pros:

• Cool design
• High-quality AMOLED screen
• Lots of features
• IP68 protection
• Reasonable price
• Wireless charger

Minuses:

• Low battery life
• During training, the pulse sensor “lies”

So how does the bracelet know about blood pressure?

The blood pressure measurement function is closely related to the bracelet's ability to measure heart pulsation. This is why you can find devices on sale with a separate heart rate monitor, but never only with a blood pressure monitor. Under the bracelet there is a flashing LED, usually glowing green. Its radiation shines through the skin. Bright rays reach the blood vessels. As a result of each heartbeat, the vessels are intensively filled with blood, and therefore become darker. As a result, the detector in the bracelet records this. Against the background of the glow from the LED, the detector can detect pulsation. As a result, the bracelet receives data on heart rate.

Based on these data, as well as additional information, which is also recorded by the sensor, the amplitude of the pulse wave is analyzed. With these numbers, you can use mathematical calculations to determine your blood pressure. These measurements are interrelated, which was proven back in 1867 by the scientist Etienne Jules Marey.

This very ancient method has not been used for a long time, since it requires complex calculations, which are very difficult to do even with a calculator. Since the fitness bracelet is practically a computer, it instantly performs complex calculations and provides a blood pressure reading. Based on the results obtained from analyzing the pulse wave amplitude, it is possible to measure blood pressure faster than with a cuff tonometer.

DT35 Smart Watch

Brief characteristics

• Year of release: 2020
• Screen: color, LCD
• Diagonal: 1.54 inches
• Resolution: 240*240 pixels
• Processor: MTK 2502D + BMA 425
• Battery: 260 mAh
• Battery life: 2 – 5 days
• Water protection: IP67
• Sensors: accelerometer, heart rate monitor, ECG sensor
• Price: from 23$

Check price
The DT35 is another gadget that isn't tied to a specific brand, and another one that looks like a smartwatch but is essentially an activity tracker. This time the design is blatantly copied from Huami's Amazfit GTS.

The tracker has a rectangular body made of zinc alloy. The device is equipped with a silicone strap or a Milanese weave metal bracelet. If desired, the strap can be replaced with any other bracelet or strap 20 mm wide. The housing is protected from water and dust in accordance with the international standard IP67. Splashes and exposure to rain will last for hours, but you should not swim with them.

The device is equipped with a bright 1.54-inch LCD screen with a resolution of 240*240 pixels. Under the hood there are a pair of processors: MTK 2502D and BMA 425. Using two processors, the manufacturer tried to achieve maximum performance and battery life. The 260 mAh battery allows you to use all available functions from 2 to 5 days without recharging.

If you believe the reviews, the accuracy of pressure measurement is at a fairly high level. The heart rate sensor and pedometer also cope well with their tasks. But the ECG is an ordinary toy that you should not rely on.

In terms of features, the DT35 is practically no different from the SG2 Smart Watch. The main difference is the presence of a microphone and speaker for Bluetooth calls. There is a heart rate sensor with support for blood pressure measurement, an accelerometer, an ECG sensor and a blood oxygen level sensor.

Where can I buy?

23.53 - 24.60$ on Aliexpress

24.99 - 30.99$ on Aliexpress

Pros:

• Stylish design
• Large, informative screen
• Large number of sensors
• Microphone and speaker for Bluetooth calls
• Affordable price

Minuses:

• Low battery life
• ECG sensor for "tick"
• The screen goes blind in the sun
• IP67 protection not suitable for swimming

Bracelets with SOS and GPS button

There is also a separate list of bracelet models designed for older people and able to not only measure their health indicators, but also determine their location and call for help if the person’s condition is close to critical. Such bracelets are equipped with an address and a panic button. Location and address functions play a special role when the wearer of the bracelet has poor memory and may get lost or forget where he lives. Thanks to these functions, he can ask passers-by for help or call relatives who will help him get home. These bracelets are best suited for older people. However, it is worth remembering that health must be maintained, and not just monitored. For example, attending health hours for seniors, where older people are taught how to care for their bodies, as well as special physical exercises, can help you and your elderly relatives with this.

GSMIN G20 (2020) – fitness bracelet with accurate measurements of pulse, pressure and ECG

Main characteristics

• Year of release: 2020
• Weight: 30 g
• Screen: color, LCD
• Diagonal: 0.96 inches
• Battery: 150 mAh
• Battery life: up to 7 days
• Water protection: IP67
• Sensors: accelerometer, heart rate monitor, ECG sensor
• Price: 7,900 rubles

Check availability and price

GSMIN G20 (2020) is an excellent model for those who focus on monitoring the body’s condition. According to the manufacturer, the gadget is equipped with ultra-precise sensors similar to medical devices. I can’t fault the design either – the bracelet looks really cool.

The main feature of this gadget is its multiple uses. It can be worn on your hand, like a regular fitness bracelet, and attached to your chest using special adapters for more precise control of your body’s condition during training.

The tracker is equipped with a bright, color LCD screen with a diagonal of 0.96 inches. Below the screen there is a touch button – an electrode for taking an ECG. In addition to the ECG, the bracelet has all the functions necessary to monitor daily activities. He can:

• Assess the duration and quality of sleep;
• Monitor several sports modes;
• Measure the number of heart beats;
• Monitor the balance of oxygen in the blood;
• Count the number of steps taken;
• Calculate the number of calories burned and distance traveled;
• Notify about calls and messages.

The plastic case is protected from water and dust according to the IP67 standard, which means you should not use the tracker while swimming. This is the first flaw of the G20. The second drawback is that the gadget is not cheap. It can be purchased in the GSMIN online store for 7,900 rubles. But there are also a number of advantages: accurate sensors and a 12-month warranty from the store.

Pros:

• Cool design
• Bright screen
• High precision sensors
• Multiple wearing ways
• Official guarantee

Minuses:

• Price is above average
• IP67 protection not suitable for swimming

Which model should you choose?

When choosing a gadget, many of us are accustomed to focusing on price: expensive means good; budget - will work intermittently and quickly fail. But in the case of a fitness bracelet, this is not entirely the right approach.

The first question to ask yourself before purchasing is not “How much am I willing to spend,” but “What options do I need.”

1. Pedometer and heart rate monitor only: choose a simple budget model
2. The functions of measuring pressure and alarm are important; It is important that the bracelet can distinguish between walking, running, swimming, exercise and count calories: you need a model with advanced functionality.

The more options, the more indicators the bracelet can track. But, contrary to the stereotype, not every elderly person scrupulously monitors their health. Therefore, the future owner of the bracelet must decide what indicators he needs and are interested in: overpaying for options that no one will use is not very rational.

Among brands, preference should be given to trusted manufacturers. Xiaomi has already released four generations of smart bracelets. Other major market players are Fitbit, Jawbone, Nike. Some models are positioned on the market as models specifically designed for people over 60. One of them is a bracelet for an elderly person with Herzband Active pressure measurement.

JET Sport FT-9C - bracelet for monitoring the general condition of the body

Key Features

• Year of release: 2019
• Weight: 24 g
• Screen: color, TFT
• Diagonal: 0.96 inches
• Battery: 150 mAh
• Battery life: up to 7 days
• Water protection: IP67
• Sensors: accelerometer, heart rate monitor
• Price: 2,790 rubles

Jet Sport FT-9C is a convenient and functional fitness tracker that provides comprehensive tracking of various activity indicators. The bracelet is ideal for people who are accustomed to monitoring their health and physical fitness.

The FT-9C body is made of plastic and is protected from water and dust in accordance with the international standard IP67 (can be swam). Information is displayed on a 0.96-inch TFT color screen. Below the screen is a touch button for cycling between functions.

The battery life of the bracelet in normal mode is 7 days, in more active mode – 5 days. The 150 mAh battery is charged directly via a USB port located on one of the ends of the case.

Reviews about the accuracy of pressure measurements with the FT-9C bracelet vary. The model has a certain error, but the bracelet is suitable for understanding the general dynamics of pressure changes.

The main functions of the Jet Sport FT-9C are as follows:

• Blood pressure control;
• Pedometer;
• Heart rate monitoring;
• Tracking physical activity and workouts;
• Calorie counter;
• Sleep quality assessment;
• Reminders;
• Notifications about messages and calls;
• Training history with the My JetSport app.

In the manufacturer’s official online store, the gadget can be purchased for 2,790 rubles.

Pros:

• Low cost
• Stylish appearance
• Large set of functions
• Branded application
• Official guarantee

Minuses:

• The display is difficult to see in bright light
• Low sensor accuracy

Companies producing budget fitness bracelets

The market for wrist devices (electronic devices) today is very wide. Everyone is trying to invent something cooler. Based on the price indicator, the company rating looks like this:

1. Budget line: Xiaomi, Huawei, Jawbone.
2. Average price line: Fitbit, MiO, ONETRAK.
3. Premium: Samsung, Garmin.

Corporations that understand that a fitness tracker should become a mass product, needed by everyone - from children to centenarians, are working on products in the budget line; companies like Xiaomi, Lenovo, Huawei, Jawbone, and Meizu are attracting attention here. All of them are Chinese and have extensive experience in developing and promoting electronic products. As for quality: the time of private Chinese “sharashkas” is over; Chinese electronics manufacturers are among the top three world leaders in all respects. Look at company biographies to make sure they are trustworthy.

Bizzaro F590 - fitness bracelet with heart rate monitor and pressure

• Year of release: 2019
• Screen: color, OLED
• Diagonal: 0.96 inches
• Processor: NRF 52832
• Battery: 90 mAh
• Battery life: up to 6 days
• Water protection: IP67
• Sensors: accelerometer, heart rate monitor, ECG sensor
• Price: from 4,000 rubles

Bizzaro is one of the projects of the Canadian company Rekam Inc. Canada. The first smartwatches under this brand were introduced back in 2014, and since then, the range of Bizzaro wearable devices has been constantly expanding. But, although it is a Canadian brand, the Bizzaro F590 fitness bracelet is manufactured in China, and what's more, it is sold under many different brands. For example, the GSMIN online store sells it under the model number WR11 (2019).

The device was equipped with a color OLED screen with a diagonal of 0.96 inches and a resolution of 160*80 pixels. It's bright enough and doesn't fade as much in the sun as most LCDs. Below the screen there is a touch button - an electrode for the ECG sensor.

Some buyers complain about the low accuracy of the bracelet's pressure measurements. But, after calibration in the application and following all recommendations, you can achieve an acceptable error.

The bracelet can:

• Take an ECG;
• Measure heart rate around the clock;
• Monitor sleep;
• Measure pressure;
• Count steps, calories and distance;
• Determine the HRV index (general body condition).
• Notify about calls and messages.

Device price: from 4,000 rubles.

Pros:

• Vibrant color screen
• Multifunctionality
• Determination of the HRV index
• Blood pressure measurement and ECG recording

Minuses:

• Non-touch screen, one button control
• Weak vibration

Operating principle: how the bracelet determines blood pressure

The heart, along with contractions, sends electrical impulses. A piezoelectric pressure sensor measures the pulse wave. In response, they produce electronic signals of a certain magnitude.

What affects the measurement accuracy:

1. Sensitivity of hardware elements receiving the signal.
2. The quality of application calculations.
3. Correct measurement.
4. Manufacturer.

You can additionally indicate the price in the factors, but this does not mean that for a larger amount the watch will measure more accurately. The price includes many other criteria that have little effect on accuracy.

T1 Smartband - bracelet with pressure and temperature

Key Features

• Year of release: 2019
• Weight: 24 g
• Screen: color, LCD
• Diagonal: 1.14 inches
• Battery: 90 mAh
• Battery life: 5 – 7 days
• Water protection: splash proof
• Sensors: accelerometer, heart rate monitor, ECG sensor, temperature sensor
• Price: From 16 dollars

Check price

T1 Smartband is another “no name” bracelet, which is sold under several well-known and not so well-known brands: Bakeey, Lerbyee, Mafam, etc. What distinguishes it from all other devices in this rating is its temperature sensor for round-the-clock monitoring of body temperature.

Key features of T1 Smartband:

• Measure body temperature;
• Take an ECG;
• Measure blood pressure and oxygen levels in the blood;
• Measure heart rate around the clock;
• Count steps, calories and distance;
• Assess the duration and quality of sleep;
• Notify about calls and messages;
• Control the camera and music of your smartphone;
• Track common sports modes, etc.

The accessory is equipped with a 1.14-inch color LCD screen. Below the screen there is a touch button, which also serves as an electrode for taking an electrocardiogram. Another pair of electrodes are located on the back panel next to the optical heart rate sensor and contacts for the magnetic charging cable.

One charge of a 90 mAh battery will last approximately 5 – 7 days, depending on the intensity of use.

Where can I buy?

$16.69 – $21.09 on Aliexpress

$22.79 on Alexexpress

$17.85 – $21.14 on Aliexpress

Pros:

• Inexpensive
• Unusual design
• Lots of sensors and functions
• Large, informative screen

Minuses:

• Pressure measurement limit to 150 units
• When running, there is a large error in heart rate measurement

How to choose a smart bracelet?

A fitness bracelet must be chosen depending on what exactly it is needed for. For hypertensive patients, the most important thing is that the device is of high quality and accurately measures blood pressure readings. It is worth choosing models from well-known manufacturers that have already proven themselves well.

For older people, it is also enough to choose a simple bracelet that only measures blood pressure and pulse. For patients of this age, this will be enough not to get lost in settings and additional functions.

Athletes and overweight people need to choose devices with wide functionality. It is important for them that the device not only measures blood pressure and pulse, but also has a pedometer.

One of the important parameters of a fitness bracelet is its moisture resistance.

Which gadget is better to buy: top 10 models with a blood pressure monitor, pedometer and heart rate monitor

In 2018-2019, many improved models with a heart rate monitor and GPS, a built-in blood pressure monitor and a blood oxygen sensor appeared on the fitness tracker market in 2018-2019.

If we talk about the best representatives, then it is worth highlighting 10 models of fitness bracelets that surprised users with the quality of work, functionality and price.

Lynwo M2S Pro

This model is characterized by a high level of battery life and quite rich functionality. One of the innovations of the program installed on the device is the ability to control the smartphone camera.

Photo from AliExpress.com

If we talk about the shortcomings, it is worth mentioning that the screen glares in the sun, and a small error in measuring heart rate, typical of most trackers.

GL 18 from Gelikon-Line

One of the most accurate fitness bracelets with pressure sensors and blood oxygen level measurement. It fits securely on your wrist, is equipped with all standard functions and has a battery life of up to 10 days.

What makes the GL 18 innovative is the Taiwan PXI – PAH 8001 EI chip and the high-power MPU6500 sensor, which allow you to take the most accurate pulse wave values. Measuring oxygen levels is a necessary condition for detecting the initial stages of heart and lung diseases.

Fitness bracelet M3 with heart rate monitor, D&A

This model from the Belarusian developer, in addition to measuring pulse amplitude, is capable of recording blood pressure and keeping statistics on physical health indicators. Advanced functionality and reasonable cost are the main advantages of the device.

Photo from AliExpress.com

Fitness bracelet with blood pressure monitor GL-2019 Smart Edition

This gadget is currently considered one of the best in terms of the quantity and quality of built-in functions. Its main advantages include:

• animated color screen;
• completely Russified menu;
• remote control for smartphone camera;
• functions for measuring pressure, pulse and oxygen levels.

As a disadvantage, it is worth mentioning the cost - about 10 thousand rubles.

Herzband Active Pro 2

Herzband Active Pro 2 with a tonometer and heart rate monitor also has a lot of positive reviews, primarily due to the high accuracy of measurements. It has one of the best heart rate monitors, which allows you to see the results on the water-resistant screen with durable Gorilla Glass, protecting against any possible damage. The disadvantage of this display is the glare of the glass in the sun.

Fitness bracelet SK11

One of the most accurate trackers in terms of measuring blood pressure and heart rate. The error, compared to medical equipment, is only ±2 divisions.

Displays heart rate readings, the percentage of oxygen in the blood, the number of calories burned, and blood pressure values. The device is equipped with all standard functionality at an affordable price.

The main disadvantage is the small battery capacity.

Fitness tracker E26

Ideal for athletes who require a wide range of options and long battery life. Among the advantages:

• unique design;
• advanced functionality.

Not suitable for older people due to lower accuracy of heart rate and pressure measurements compared to other analogues.

Fitness tracker H09

This blood pressure monitor is easy to use and is ideal for older people who need to regularly monitor their heart rate. Among the advantages can be noted:

• accuracy of measurements;
• long battery life;
• ability to check pulse, pressure and oxygen level.

Fitness bracelet QS100 with blood pressure and heart rate measurement

This model is an indispensable partner in sports training. It not only supports all the important functions of this type of gadget, but also allows you to monitor the overall physical condition of the athlete.

Photo from AliExpress.com

QS 100, according to reviews, is attractive to users due to its successful combination of moderate cost and advanced functionality.

Smart bracelet V07

The main advantage of a smart bracelet is its budget price. At the same time, it is equipped with the function of measuring pressure, pulse and percentage of oxygen in the blood. It is also worth noting the light weight, nice design and accurate heart rate measurement.

Disadvantages include a low level of autonomy and small errors in measuring blood pressure.

Photo from AliExpress.com

Heart rate and blood pressure measurements from fitness trackers cannot be used as a basis for taking medications.