Detailed comparison and review of Polar Unite and Xiaomi Watch S1. With our comprehensive overview, you can simply compare size, design, functions, battery capacities, but also other key features of both smartwatches and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the watch that best fits your needs and expectations.
| GENERAL | Polar Unite | 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 |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 43.4 mm | 46.5 mm |
| Height | 43.4 mm | 46.5 mm |
| Depth | 10.4 mm | 11 mm |
| Weight | 32 g | 52 g |
| Body Material | Fibreglass reinforced polymer | Stainless steel |
| Protection | Water-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Polar Unite | Xiaomi Watch S1 |
|---|
| Sensors | Accelerometer, ambient light sensor, optical heart sensor | Accelerometer, ambient light sensor, barometer, gyro sensor, geomagnetic sensor, pulse oximeter, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, 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 | Fitness test, Bluetooth Smart technology, inactivity alert, GPS via mobile, guided breathing session, Nightly Recharge recovery measurement, FitSpark training guide | Call handling, automatic exercise recognition, breathing training function |
| Notifications | Calendar, SMS, Email | SMS, Email, social apps, incoming calls |
| Vibrating Alert | Yes | - |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Polar Unite | Xiaomi Watch S1 |
|---|
| Wireless Interface | Bluetooth | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 |
|---|---|---|
| Connectors | USB | - |
| DISPLAY | Polar Unite | Xiaomi Watch S1 |
|---|
| Type | IPS - colour | AMOLED - colour |
|---|---|---|
| Resolution | 240 x 204 pixels | 466 x 466 pixels |
| Screen Size | - | 1.43" |
| Pixel Density | - | 326 ppi |
| Screen Protection | - | Sapphire glass |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Polar Unite | Xiaomi Watch S1 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push buttons |
|---|
| CASE | Polar Unite | Xiaomi Watch S1 |
|---|
| Case Size | - | 46 mm |
|---|---|---|
| Case Shape | Round | Round |
| Case Details | - | Silver | Black |
| BAND | Polar Unite | Xiaomi Watch S1 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | S/L | - |
| Band Width | 20 mm | - |
| Fits Wrist with Circumference | 130-210 mm | - |
| Changeable | Yes | Yes |
| Clasp Type | Snap & slip | Buckle |
| Band Material | Silicone | Calf leather |
| Band Colour | Black | Blue | Pink | White | Brown | Black |
| BATTERY | Polar Unite | Xiaomi Watch S1 |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 174 mAh | 470 mAh |
| Battery Life Details | Watch mode + HR - up to 4 days Training mode + HR - up to 50 hour(s) |
Power saving mode - up to 24 days Typical usage - up to 12 days |
| Rechargeable Battery | Yes | Yes |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | Polar Unite | Xiaomi Watch S1 |
|---|
| Included Accessories | Charging/data cable | USB cable, wireless charging dock, fluororubber watch strap (grey) |
|---|---|---|
| Preloaded Software | Polar Fitness Test, Polar Flow | - |
| Max Depth of Water Resistance | 30 m | 50 m |
| Max Operating Temperature | 50 °C | 45 °C |
| Min Operating Temperature | -10 °C | -10 °C |
| Warranty | 2-year warranty | 2-year warranty |
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