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The Xiaomi Mi Watch is a 2020/2021-era GPS fitness smartwatch—not the newer Xiaomi Watch 5, Watch S models, or Mi Watch Lite. Its round AMOLED display, built-in GPS, 5ATM water resistance and long battery life still make it useful for basic activity tracking. In 2026, however, it is a legacy device: buy one only if the exact regional model works with Mi Fitness, includes a working charger, and is substantially cheaper than a current alternative.
Quick identification
- Round 1.39-inch, 454 × 454 AMOLED display
- Approximately 32g without the strap
- Built-in GPS with GPS, GLONASS, Galileo and BDS
- 420mAh battery; Xiaomi claimed up to 16 days in typical use
- 5ATM water resistance
- Mi Fitness companion app
- Proprietary Xiaomi software, not Wear OS
These details identify the full-size global Xiaomi Mi Watch. A square watch is probably the Mi Watch Lite or another Xiaomi or Redmi model.
What is the Xiaomi Mi Watch?
Xiaomi unveiled the Mi Watch in September 2020 and released it internationally in early 2021. It was positioned as an affordable smartwatch for fitness, notifications and long battery life, rather than as a full Google-powered smartwatch.
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The global model has a round case, two physical buttons and a lightweight plastic construction. It can track workouts, display notifications, control music on a phone, show weather, set alarms and timers, find a phone, and provide compass, flashlight and air-pressure functions.
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- Stunning images, smooth touch: Immerse yourself in brilliant clarity with the large 1.72-inch AMOLED display.Vacuum filling sealing technology enables symmetrical 2.0mm ultra-thin bezels, expanding screen-to-body ratio from 66% to 73%. Enjoy incredibly smooth and seamless interaction with crisp, color-accurate images, right on your wrist.
- Fast charging, longer adventures: Say goodbye to daily charging hassles! Enjoy an exceptional 21 days of battery life on a single charge. And when you need more power, it only takes an hour to fully recharge the device with fast charging. Freedom without limits!
- Revolutionize your swimming and training sessions: The Xiaomi smartwatch is equipped with a new high-precision electronic compass that tracks swimming direction like never before, delivering unparalleled accuracy for pool sessions. Plus, gain detailed insights through professional analysis of your workouts to optimize each session.
- Master your nighttime recovery: Discover the secrets of your sleep with comprehensive and enhanced sleep monitoring. Get comprehensive insights into your sleep stages and quality, helping you wake up refreshed and optimize your well-being.
- 1500 nits HBM brightness,Glanceable in any light:25% brighter than before, the display achieves a remarkable 1500 nits HBM brightness, making every message readable even in direct sunlight.
It is important not to confuse it with the China-market Mi Watch, Mi Watch Lite, later Watch S1/S3/S4/S5 models, or Xiaomi Watch 2, 2 Pro and 5. The latter Wear OS models have a fundamentally different software platform and app ecosystem.
Xiaomi Mi Watch specifications
The following are manufacturer specifications and claims; real-world results vary by software version, settings, region and battery condition.
| Specification | Xiaomi Mi Watch |
|---|---|
| Display | 1.39-inch AMOLED, 454 × 454, approximately 326 ppi |
| Dimensions | 45.9 × 53.4 × 11.8mm |
| Weight | Approximately 32g without strap |
| Connectivity | Bluetooth 5.0 |
| Positioning | GPS, GLONASS, Galileo and BDS |
| Water resistance | 5ATM |
| Battery | 420mAh |
| Sports modes | 17 professional plus 100 expanded modes; 117 total in supported software |
| Compatibility | Android 5.0 or newer; iOS 10.0 or newer, according to Xiaomi |
| Companion app | Mi Fitness; older reviews may call it Xiaomi Wear |
See Xiaomi’s official specifications and regional disclaimers before buying an imported unit.
Design, display and comfort
The 1.39-inch AMOLED screen is one of the Mi Watch’s strongest features. Its high contrast and 454 × 454 resolution make watch faces, workout information and notifications easy to read compared with the square Mi Watch Lite’s 1.4-inch TFT LCD.
The body is light enough for all-day wear, and the strap is removable. Case colours included black, navy blue and beige options, although availability depends on market and seller. The design feels more like a fitness watch than a premium metal smartwatch, but the low weight is practical for sleep tracking and exercise.
Fitness tracking and GPS
The Mi Watch includes onboard GPS, so it can record outdoor walks, runs and rides without carrying a phone. Supported activities include running, walking, cycling, swimming, treadmill work, trekking, triathlon and HIIT. Xiaomi also lists training effect, recovery time, calories, pace, speed, cadence and route data for supported activities.
Rank #2
- Stunning images, smooth touch: Immerse yourself in brilliant clarity with the large 1.72-inch AMOLED display.Vacuum filling sealing technology enables symmetrical 2.0mm ultra-thin bezels, expanding screen-to-body ratio from 66% to 73%. Enjoy incredibly smooth and seamless interaction with crisp, color-accurate images, right on your wrist.
Automatic workout detection is available for selected activities, including outdoor jogging, indoor jogging and power walking. The headline figure of 117 sports modes needs context: Xiaomi counts 17 professional modes and 100 expanded modes, and says the number can vary by software version. The modes are not 117 equally detailed training profiles; some are largely activity-label variations.
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Health tracking: useful trends, not medical readings
The watch offers 24-hour heart-rate monitoring, resting-heart-rate trends, blood-oxygen measurement, sleep tracking, stress monitoring, breathing exercises and Xiaomi’s vital-sign or body-energy-style interpretations.
Xiaomi says the watch is not a medical device. SpO₂ and heart-rate readings are reference information and should not be used to diagnose or treat a condition. If you have symptoms or receive an abnormal reading, use clinically appropriate equipment and seek professional medical advice.
The global product information says extended nighttime sleep is tracked, while ordinary daytime naps and short periods of dozing may not be recorded reliably. Health behaviour can also vary with software and region.
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Battery life and charging
Xiaomi advertised three endurance figures:
- Up to 16 days in typical use.
- Up to 22 days in a long-battery mode.
- Up to 50 hours in outdoor sports mode using GPS and heart-rate monitoring.
The 16-day test condition included 24-hour heart-rate monitoring, sleep, stress and vital-sign monitoring, daily step counting, 100 displayed notifications per day, two alarms, 20 watch checks, daily synchronisation and two outdoor workouts per week. The 22-day mode disables several health-monitoring functions.
Rank #3
Always-on display use, frequent GPS workouts and continuous sensors reduce endurance. More importantly in 2026, most available units are several years old. A healthy launch-era watch could approach two weeks of ordinary use, but a second-hand battery may last much less.
The proprietary magnetic charging cable is a buying consideration. Do not assume a generic Qi charger or another Xiaomi watch charger will work. If the seller cannot provide the original cable or demonstrate charging, factor in the risk and ask about returns.
Smart features and software limitations
The Mi Watch can show incoming notifications and call alerts, mute an incoming call, control phone music, display weather and use alarms, timers, stopwatches, watch faces, a compass, flashlight and phone-finding tools.
It does not run Wear OS. There is no Google Play, Google Wallet, Google Maps app ecosystem or comparable third-party app platform. Launch-era testing found that notifications could be viewed but not answered from the watch.
That distinction matters: the Mi Watch can show phone notifications, but it has limited notification interaction, cannot run modern smartwatch apps, and is not an independent cellular watch. Do not buy it expecting WhatsApp or Spotify apps, full message replies, LTE calling or Xiaomi Watch 5 functionality.
Android, iPhone and Mi Fitness compatibility
Xiaomi lists Android 5.0 and newer and iOS 10.0 and newer as the product’s minimum requirements. These are historical product requirements, not a guarantee that every current phone, operating-system release, account configuration or region will work perfectly in 2026.
Rank #4
- Stunning images, smooth touch: Immerse yourself in brilliant clarity with the large 1.72-inch AMOLED display.Vacuum filling sealing technology enables symmetrical 2.0mm ultra-thin bezels, expanding screen-to-body ratio from 66% to 73%. Enjoy incredibly smooth and seamless interaction with crisp, color-accurate images, right on your wrist.
Older reviews refer to the companion app as Xiaomi Wear. Current Xiaomi support documentation refers to Mi Fitness. Check the relevant Google Play or App Store listing and confirm that it recognises the exact watch model in your country before paying for an imported unit.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteHow to pair the Mi Watch
- Charge the watch and install Mi Fitness.
- Sign in to a Xiaomi Account.
- Enable Bluetooth and open Mi Fitness.
- Choose the option to add the watch.
- Confirm the matching security code on the phone and watch if prompted.
- Grant notification, location and other permissions required for the features you want.
- Open Mi Fitness → Device → Update and install available firmware.
Labels can vary by app version and region. When changing phones, Xiaomi documents unbinding the watch from Mi Fitness on the old phone and binding it to the new phone. A factory reset may be required, especially when changing Xiaomi Accounts, and it erases watch data. See Xiaomi’s phone-switching guidance.
Firmware and charging troubleshooting
If a firmware update fails
- Charge the watch above 30%.
- Keep Bluetooth enabled and the watch close to the phone.
- Use a stable Wi-Fi or mobile-data connection.
- Reduce nearby Bluetooth and Wi-Fi interference.
- Update Mi Fitness through Profile → Version.
- Restart the phone and retry Device → Update.
- Unbind and rebind the watch, reinstall Mi Fitness, or try another phone using the same Xiaomi Account.
- Factory-reset only as a last resort.
Xiaomi lists the reset path as Watch main interface → swipe up → Settings → System → Reset → confirm. Its full firmware troubleshooting guide warns that a reset erases watch data.
If it will not charge
Use the standard cable or dock and a standard 5V/1A charging head or suitable certified adapter. Clean the watch and charger contacts, allow the watch to return to normal temperature, try another charging head, and do not assume a power bank will charge it correctly. Xiaomi’s charging guidance recommends after-sales inspection if these steps fail.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Water resistance and ageing
5ATM means water resistance under specified test conditions, not permanent waterproofing. Xiaomi says the watch is suitable for showering and shallow-water swimming, but not diving or saunas.
Avoid diving, high-pressure water, hot tubs, saunas and pressing buttons underwater. Water resistance can decline with age, impact, seal wear or repair. Treat an old or opened used watch as less water-resistant, even if it looks intact.
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Mi Watch versus Mi Watch Lite
| Mi Watch | Mi Watch Lite | |
|---|---|---|
| Shape | Round | Square |
| Screen | 1.39-inch AMOLED, 454 × 454 | 1.4-inch TFT LCD |
| Positioning | Built-in GPS and multiple satellite systems | Built-in GPS, with a more limited feature set |
| Fitness focus | More advanced workout and health features | Cheaper, simpler fitness tracking |
| Best for | Users wanting a larger AMOLED display and longer endurance | Users prioritising a smaller, cheaper square watch |
They are separate products. Do not use a Mi Watch Lite listing, charger or specifications to judge the full-size Mi Watch. The Wareable comparison provides additional launch-era distinctions.
Should you buy the Xiaomi Mi Watch in 2026?
Buy it only when the deal is clearly below the cost of a current watch and the seller proves that it works. It remains a reasonable choice for casual walking, basic running, notifications, sleep trends and long battery life.
It is a poor choice for Google apps, rich notifications, LTE, serious training, dependable race-distance accuracy, medical monitoring or deep iPhone integration. It is also a poor choice when old stock costs near a newer Xiaomi, Amazfit, Samsung, Garmin, Fitbit or Apple Watch.
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Used and imported buying checklist
- Confirm the exact model, region and case shape.
- Ask the seller to show Mi Fitness recognising and pairing with it.
- Confirm that the watch can be reset and is not locked to another account.
- Require the proprietary magnetic charger, or verify a replacement before purchase.
- Ask how long the battery lasts under ordinary use.
- Inspect for cracks, swelling, corrosion or signs that the case was opened.
- Check that the return window covers regional incompatibility and pairing failure.
- For US purchases, remember that the original Mi Watch was not officially launched there; many listings are imported or reseller stock.
Alternatives
For a current Xiaomi smartwatch with a richer app platform, compare the Mi Watch with the Xiaomi Watch 5. It launched globally in 2026 at €299.99 according to launch coverage, uses Wear OS 6 and supports Google services and third-party apps; Xiaomi states that it is Android-only.
For iPhone integration, Apple Watch is the more natural choice, although it normally needs more frequent charging. For serious running, cycling or hiking, Garmin’s smartwatch range offers a deeper training ecosystem. Fitbit is aimed more at health and sleep trends, while Samsung Galaxy Watch is a stronger Android Wear OS option, especially for Samsung users. Check current country-specific prices and features before choosing any alternative.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
