Side by side comparison and review of Xiaomi Watch S1 and Fitbit Sense 2. Compare design, displays, functions, batteries and other key specifications and features to simplify the choice of your perfect smartwatch. Our goal is to make it easier for you to decide on the watch that will best meet your expectations by revealing the main differences between the products.
| GENERAL | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS 10 or later, Android 6.0 (Marshmallow) or later | Android 8.0 (Oreo) or later, iOS 14 or later |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | Speaker | Speaker |
| Width | 46.5 mm | 40.5 mm |
| Height | 46.5 mm | 40.5 mm |
| Depth | 11 mm | 12.3 mm |
| Weight | 52 g | - |
| Body Material | Stainless steel | Aluminium |
| Protection | Water-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Sensors | Accelerometer, ambient light sensor, barometer, gyro sensor, geomagnetic sensor, pulse oximeter, optical heart sensor | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, temperature, optical heart sensor, electrodermal activity (EDA) sensor, vibration motor, multipurpose electrical sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, stress level | Distance, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, active time, menstrual cycle, breathing rate, temperature, sleep quality score, blood glucose |
| Modes | - | 40+ sports modes |
| Goal Setting | Yes | Yes |
| Features | Call handling, automatic exercise recognition, breathing training function | Find phone function, automatic exercise recognition, breathing training function, Active Zone Minutes, HRV index, Sleep Score, Sleep Profile, Stress Management Score, Daily Readiness Score, all day body response tracking, cardio fitness score |
| Notifications | SMS, Email, social apps, incoming calls | SMS, applications, high and low heart rate, calls, irregular rhythm |
| Vibrating Alert | - | Yes |
| Feedback Type | Vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou/QZSS receiver | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | Yes | Yes |
| IoT Intelligent Assistant | Alexa built-in | Alexa built-in |
| IoT Voice Controlled | Direct | Direct |
| CONNECTIVITY | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Type | AMOLED - colour | Colour |
|---|---|---|
| Resolution | 466 x 466 pixels | - |
| Screen Size | 1.43" | - |
| Pixel Density | 326 ppi | - |
| Screen Protection | Sapphire glass | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Type | Touch sensitive screen, push buttons | Touch sensitive screen, push button |
|---|
| CASE | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Case Size | 46 mm | - |
|---|---|---|
| Case Shape | Round | Square |
| Case Back | - | Aluminium |
| Case Details | Silver | Black | Platinum aluminum |
| BAND | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Band Type | Strap | Band |
|---|---|---|
| Band Size | - | S |
| Fits Wrist with Circumference | - | 129-175 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Pin-and-tuck |
| Band Material | Calf leather | - |
| Band Colour | Brown | Black | Lunar white |
| BATTERY | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 470 mAh | - |
| Battery Life | - | 6 day(s) |
| Battery Life Details | Power saving mode - up to 24 days Typical usage - up to 12 days |
GPS mode - up to 5 hour(s) |
| Rechargeable Battery | Yes | - |
| Recharge Time | - | 2 hours |
| Wireless Charging | Yes | - |
| MISCELLANEOUS | Xiaomi Watch S1 | Fitbit Sense 2 |
|---|
| Included Accessories | USB cable, wireless charging dock, fluororubber watch strap (grey) | Charging cable, 6-month Fitbit Premium membership, wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | - | Alarm, FitBit Pay |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | 45 °C | 45 °C |
| Min Operating Temperature | -10 °C | -10 °C |
| Warranty | 2-year warranty | 2-year warranty |
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