In depth comparison and review of Pebble 2 + Heart Rate and Xiaomi Watch S1. 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 | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Pebble OS | - |
| Supported Host Device OS | Android 4.3 (Jelly Bean) or later, iOS 8.0 or later | iOS 10 or later, Android 6.0 (Marshmallow) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | - | Speaker |
| Width | - | 46.5 mm |
| Height | - | 46.5 mm |
| Depth | 9.8 mm | 11 mm |
| Weight | - | 52 g |
| Body Material | Polycarbonate | Stainless steel |
| Protection | Waterproof | Water-resistant |
| Colours | White | Charcoal/flame | Charcoal/lime | White aqua | - |
| Clock Display | Yes | Yes |
| FEATURES | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Sensors | Ambient light sensor, heart rate, 3-axis accelerometer | Accelerometer, ambient light sensor, barometer, gyro sensor, geomagnetic sensor, pulse oximeter, optical heart sensor |
|---|---|---|
| Tracking Data | Time, 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 |
| Features | Music remote handling, call alerts, app alerts | Call handling, automatic exercise recognition, breathing training function |
| Notifications | SMS | 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 | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Wireless Interface | Bluetooth 4.0 | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 |
|---|
| DISPLAY | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Type | E Ink - monochrome | AMOLED - colour |
|---|---|---|
| Resolution | - | 466 x 466 pixels |
| Screen Size | - | 1.43" |
| Pixel Density | - | 326 ppi |
| Screen Protection | Scratch-resistant glass | Sapphire glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Type | - | Touch sensitive screen, push buttons |
|---|
| CASE | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Case Size | - | 46 mm |
|---|---|---|
| Case Shape | - | Round |
| Case Details | Black | Black/flame | Silver | Black |
| BAND | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | - |
| Changeable | - | Yes |
| Clasp Type | - | Buckle |
| Band Material | Silicone | Calf leather |
| Band Colour | Black | White | Brown | Black |
| BATTERY | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Capacity | - | 470 mAh |
| Battery Life | 7 day(s) | - |
| Battery Life Details | - | Power saving mode - up to 24 days Typical usage - up to 12 days |
| Rechargeable Battery | - | Yes |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | Pebble 2 + Heart Rate | Xiaomi Watch S1 |
|---|
| Included Accessories | Magnetic charging cable | USB cable, wireless charging dock, fluororubber watch strap (grey) |
|---|---|---|
| Preloaded Software | Silent alarm | - |
| Max Depth of Water Resistance | 30 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Warranty | - | 2-year warranty |
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