Side by side comparison and review of Polar Grit X Pro and Xiaomi Watch S1. 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 | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| 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 |
| Width | - | 46.5 mm |
| Height | - | 46.5 mm |
| Depth | - | 11 mm |
| Weight | - | 52 g |
| Body Details | With leather band: 53 g With FKM band: 73 g |
- |
| Body Material | Aerospace titanium | Stainless steel |
| Protection | Water-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| Sensors | Accelerometer, digital compass, barometer, optical heart sensor | Accelerometer, ambient light sensor, barometer, gyro sensor, geomagnetic sensor, pulse oximeter, optical heart sensor |
|---|---|---|
| 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 |
| 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, automatic exercise recognition, breathing training function |
| Notifications | - | SMS, Email, social apps, incoming calls |
| Vibrating Alert | 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 |
|---|
| Wireless Interface | Bluetooth | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 |
|---|
| DISPLAY | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| 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 | Sapphire glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push buttons |
|---|
| CASE | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| Case Size | - | 46 mm |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | Titanium | - |
| Case Back | Glass fibre reinforced polymer | - |
| Case Details | Titan | Black DLC | Silver | Black |
| BAND | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | M/L | - |
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | 145-215 mm | - |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Perforated leather | Calf leather |
| Band Colour | Grey | Black | Brown | Black |
| BATTERY | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 346 mAh | 470 mAh |
| Battery Life | 7 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) |
Power saving mode - up to 24 days Typical usage - up to 12 days |
| Rechargeable Battery | Yes | Yes |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | Polar Grit X Pro | Xiaomi Watch S1 |
|---|
| Included Accessories | USB charging cable, FKM wristband | USB cable, wireless charging dock, fluororubber watch strap (grey) |
|---|---|---|
| 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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