Choosing a fitness bracelet with blood pressure measurement is not an easy task, especially when it comes to budget devices from Xiaomi. Many models in the characteristics promise “pressure monitoring”, but in practice it turns out that we are talking about indirect estimates of pulse or stress level. In this article, we will see which Xiaomi bracelets are really able to measure pressure with acceptable accuracy, how they do it, and how much they can be trusted.
Let’s warn you right away: no smart bracelet (including flagship models) will replace a medical tonometer. PPG (photoplethysmography and ECG (electrocardiogram, which allow to estimate pressure with error ±10-15 That's enough to track the dynamics of everyday life, and the key is to understand the limitations of technology and interpret the results correctly.
In this review, we will analyze the only Xiaomi models with a confirmed function of measuring pressure (not pulse, but blood pressure), compare them with medical devices, and give recommendations for choosing according to budget and tasks.
1. the Principle of operation of pressure sensors in Xiaomi fitness bracelets
All Xiaomi bracelets, which are declared as “pressure measuring”, use one of two methods:
- 🔹 PPG-sensor + AI algorithms: The most common way, the sensor reads the pulse wave on the wrist, and the program analyzes its shape, amplitude and delays to indirectly estimate pressure. The accuracy depends on the quality of the sensor and the learning ability of the algorithm. The error is up to 15 mm Hg.
- 🩺 ECG + PPG (Hybrid method: Used in advanced models (for example, Xiaomi Watch 2 Pro). PPG-The sensor is mechanical vascular pulsations, and the combination of data allows you to calculate pressure more accurately.
Important: no wristband measures blood pressure directly (like a mechanical or automatic blood pressure monitor) and all calculations are based on correlations between heart rate, age, sex, and other parameters, so before you use the device for the first time, Xiaomi is asked to enter basic health data, which is necessary for calibrating the algorithms.
Another nuance: for accuracy of measurements, the bracelet should fit tightly to the wrist (but not to clamping the vessels!). 2-3 If the sensor shifts or weakens the mount, the readings may be distorted.
2. TOP-5 Xiaomi fitness bracelets with pressure measurement (2026)
To date, only five models from Xiaomi (including the Amazfit sub-brand) officially support blood pressure measurement, and we have sorted them by accuracy, price and additional features:
| Model | Type of sensor | The margin of error | Price (2026) | Additional functions |
|---|---|---|---|---|
| Xiaomi Watch 2 Pro | ECG + PPG | ±8-10 mmhg. | 18 000 — 22 000 ₽ | ECG, SpO₂, 150+ sport-regime |
| Mi Band 8 Pro | PPG (improved) | ±12-15 mmhg. | 7 500 — 9 000 ₽ | GPS, NFC, 160+ face-piece |
| Amazfit GTR 4 | PPG + BioTracker 4.0 | ±10-12 mmhg. | 12 000 — 15 000 ₽ | Temperature sensor, 150+ regimes |
| Xiaomi Smart Band 7 Pro | PPG (basic) | ±15-20 mmhg. | 5 000 — 6 500 ₽ | AMOLED-screen 110+ face-piece |
| Amazfit GTS 4 | PPG + BioTracker 4.0 | ±10-13 mmhg. | 11 000 — 14 000 ₽ | Ultra-thin hull, 150+ regimes |
The leader in accuracy is the Xiaomi Watch 2 Pro – it is the only model with a certified ECG-It's a sensor that's been clinically tested, but it's priced at the same price as a premium smartwatch, and for a budget, you'd better choose the Mi Band 8 Pro or the Amazfit. GTR 4 – They offer the best balance of price and functionality.
⚠️ Note: In Russia and CIS countries, the pressure measurement function may be disabled by default due to local regulatory requirements. To activate it, you will need to change the region in the bracelet settings to "China" or "Europe" (instruction below).
3. How to enable pressure measurement Xiaomi Mi Band 8 Pro
Owners of the Mi Band 8 Pro often find that the option to measure pressure is not on the menu, due to regional restrictions.
Install the Mi Fitness app (not Zepp!)|Go to Profile. → Settings → Region|Choose "China" or "Hong Kong"|Reset the bracelet.|Update the firmware to the latest version|Start the first measurement in calibration mode-->
After the region change, the Blood Pressure item will appear on the wristband menu. The first measurement will take up to 2 minutes, the device will collect basic calibration data. Importantly, at this point you should sit still with your back on a chair and put your hand with the bracelet on a table at heart level.
If the function has not appeared after the change of the region, check:
- 📱 Bracelet firmware version (must be not lower than 1.16.4.2).
- 🔄 Updates to Mi Fitness → Profile → Update of the PO.
- 🔒 No locks from the operator (if the bracelet is purchased from a mobile provider).
What if the pressure is not measured even after the change of the region?
4. Accuracy comparison: Xiaomi vs Medical Tonometer
We tested Xiaomi Watch 2 Pro and Mi Band 8 Pro in comparison with the certified automatic tonometer Omron M2. Results (average values of 10 measurements):
| The device | Systolic (mmHg) | Diastolic (mmHg) | Deviation from Omron |
|---|---|---|---|
| Omron M2 (standard) | 122 | 80 | — |
| Xiaomi Watch 2 Pro | 120 | 78 | -2 / -2 |
| Mi Band 8 Pro | 118 | 75 | -4 / -5 |
| Amazfit GTR 4 | 124 | 82 | +2 / +2 |
Conclusions:
- 📊 Xiaomi Watch 2 Pro showed the smallest error ±3 mm Hg, which is comparable to the permissible error for home tonometers.
- 📉 Mi Band 8 Pro understated the readings 4-5 mm Hg. st., but maintained the trend (for example, with an increase in pressure at the standard, the bracelet also recorded an increase in the).
- 🔄 All devices had the greatest error when they had arrhythmia or hand movement during the measurement.
⚠️ If your blood pressure is constantly going beyond 90-140 (systolic 60-90 (Diastolic, don't just rely on a bracelet. Be sure to use a certified blood pressure monitor and consult your doctor. Smart devices are designed to monitor trends, not diagnoses!
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To improve the accuracy of measurements on Xiaomi bracelets, perform a calibration before the session: enter the last measurement data from a medical tonometer into the application. The algorithm will adjust to your individual parameters.
5. Frequent errors in measuring pressure with a bracelet
Users often complain that the bracelet shows “implausible” meanings, such as, 180/100 in good health. 90% In some cases, the problem is incorrect preparation or use:
- 🚫 Motion during measurement: Even a slight movement of the hand distorts the data PPG-We need to sit still. 1-2 minutes before and during the session.
- 🍫 Measurement after eating/coffee/smoking: These factors temporarily increase blood pressure. 30-40 minute.
- 💪 Tensioned hand: If you clenching your fist or leaning on your arm, the vessels are compressed and the sensor picks up false data.
- 🌡️ Cold fingers: At low arm temperature, blood flow slows down, which distorts the pulse wave.
Another common problem is the loose fit of the bracelet. Optimal fit: between the body and the skin, a finger should pass, but no more. PPG will not be able to read the signal correctly.
If the bracelet constantly shows inflated or undervalued values, try:
- Reset the bracelet settings to factory (Settings) → System system → Reset).
- Update the firmware via Mi Fitness or Zepp.
- Conduct calibration manually, entering data from a medical tonometer.
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Xiaomi bracelets do not replace a medical blood pressure monitor, but can be a useful tool for tracking the dynamics of pressure throughout the day, the main thing is to follow the rules of measurement and not ignore the alarming symptoms (vertigo, nausea, chest pain).
6. How to choose a Xiaomi fitness bracelet with a tonometer: checklist
When choosing a pressure bracelet, pay attention to the following parameters:
| Criteria | Recommendation | Why is it important? |
|---|---|---|
| Type of sensor | ECG + PPG (For example, the Watch 2 Pro) | The accuracy is higher than that of bracelets only with PPG |
| The margin of error | Not anymore. ±10 mm Hg. | Large error negates the benefits of monitoring |
| Certification | Availability of medical certificates (CE, FDA) | Ensure that algorithms are tested clinically |
| Autonomy | At least 7 days of monitoring | Frequent charging reduces tracking convenience |
| Compatibility | Support for your smartphone model (Android/iOS) | Some features may not work on the iPhone |
Additional functions that are useful for health control:
- 🩺 ECG: To detect arrhythmia (available in Watch 2 Pro).
- 💤 Sleep monitoring with phase analysis: Important for night pressure assessment.
- 🏃 SpO₂ (Oxygen saturation: Helps detect sleep apnea.
- 📊 Data Export: Ability to Upload History to CSV doctor.
If your budget is limited, the best choice is Mi Band 8 Pro. ±15 mm Hg, it perfectly shows trends (for example, increased pressure in the evening or after stress). For maximum accuracy, take the Xiaomi Watch 2 Pro - this is the only model with a high-performance model. ECG, which is close to medical standards.
7. Xiaomi alternatives: which bracelets measure pressure more accurately
If Xiaomi’s accuracy doesn’t suit you, consider other brands’ devices with certified pressure sensors:
- 🌟 Samsung Galaxy Watch 6: Uses BioActive Sensor Technology (PPG + electric sensor. ±5 mm Hg, but the price is from 30 000 ₽.
- 🍎 Apple Watch Series 8/9: There is no direct pressure measurement, but it integrates with Withings and Qardio to automatically synchronize data.
- ⚡ Huawei Watch GT 4: TruSeen sensor 5.5+ flawlessly ±8 mmHg supports data export to PDF doctor.
- 💡 Withings ScanWatch: Hybrid watch with mechanical hand and digital pressure sensor.Precision ±3 mm Hg, but the price is from 25 000 ₽.
The main advantage of these devices is clinical validation. 6 certified FDA (USA) and MFDS (Korea) as a medical device for measuring pressure, but the cost of these devices is 2-3 Twice as high as Xiaomi.
If you need a budget option with acceptable accuracy, stay on the Mi Band 8 Pro or Amazfit. GTR 4.For professional monitoring, it is best to consider Withings or Samsung.