In depth comparison and review of Polar Grit X Pro and Xiaomi Watch S1 Active. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS 10 or later, Android 6.0 (Marshmallow) or later |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Body Details | With leather band: 53 g With FKM band: 73 g |
Case only: 36.3 g |
| Body Material | Aerospace titanium | Glass fibre reinforced polyamide |
| Protection | Water-resistant | Water-resistant |
| Colours | - | Ocean blue | Moon white |
| Clock Display | Yes | Yes |
| FEATURES | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Sensors | Accelerometer, digital compass, barometer, optical heart sensor | Accelerometer, ambient light sensor, barometer, SpO2 sensor, geomagnetic sensor, optical heart sensor, PPG sensor, gyroscope |
|---|---|---|
| Tracking Data | Distance, speed, calories burned, sleep activity, heart rate, steps taken | Distance, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, stress level |
| Modes | - | 117 fitness modes, 19 professional modes |
| Goal Setting | Yes | Yes |
| Features | SMS notification, Email notification, mobile notifications, social apps notification, inactivity alert, incoming calls notification, sunrise/sunset times, Serene (breathing exercise), music playback control, weather information, Nightly Recharge recovery measurement, FitSpark training guide, FuelWise smart fueling assistant, Hill Splitter, Route guidance, Route planning with Komoot | Call handling, find phone function, flashlight, automatic exercise recognition, breathing training function, music playback control, weather information, customisable watch faces, Health index, Women's health |
| Notifications | - | SMS, Email, social apps, incoming calls |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Audio alert, vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | GPS/A-GPS/Galileo/GLONASS/QZSS receiver | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Wireless Interface | Bluetooth | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 |
|---|
| DISPLAY | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | AMOLED - colour |
|---|---|---|
| Resolution | 240 x 240 pixels | 466 x 466 pixels |
| Screen Size | 1.2" | 1.43" |
| Pixel Density | - | 326 ppi |
| Screen Protection | Sapphire glass | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push buttons |
|---|
| CASE | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Bezel | Titanium | Metal |
| Case Back | Glass fibre reinforced polymer | - |
| Case Details | Titan | Black DLC | Blue | Silver | Space black |
| BAND | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | M/L | - |
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | 145-215 mm | 160-220 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Perforated leather | TPU |
| Band Colour | Grey | Black | Blue | White | Black |
| BATTERY | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Capacity | 346 mAh | 470 mAh |
| Battery Life | 7 day(s) | 12 day(s) |
| Battery Life Details | Training mode (GPS and wrist-based heart rate) - up to 40 hour(s) Watch mode - up to 7 days Training mode (with power save options) |
Typical usage - up to 12 days Power saving mode - up to 24 days GPS mode - up to 30 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2.5 hour(s) |
| MISCELLANEOUS | Polar Grit X Pro | Xiaomi Watch S1 Active |
|---|
| Included Accessories | USB charging cable, FKM wristband | Magnetic charging cable |
|---|---|---|
| Compliant Standards | - | GB/T 30106-2013 |
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | 50 °C | 45 °C |
| Min Operating Temperature | -20 °C | -10 °C |
| Warranty | - | 2-year warranty |
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