In depth comparison and review of Pebble 2 + Heart Rate 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 | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| 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 |
| Depth | 9.8 mm | - |
| Body Details | - | Case only: 36.3 g |
| Body Material | Polycarbonate | Glass fibre reinforced polyamide |
| Protection | Waterproof | Water-resistant |
| Colours | White | Charcoal/flame | Charcoal/lime | White aqua | Ocean blue | Moon white |
| Clock Display | Yes | Yes |
| FEATURES | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| Sensors | Ambient light sensor, heart rate, 3-axis accelerometer | Accelerometer, ambient light sensor, barometer, SpO2 sensor, geomagnetic sensor, optical heart sensor, PPG sensor, gyroscope |
|---|---|---|
| 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 |
| Modes | - | 117 fitness modes, 19 professional modes |
| Goal Setting | - | Yes |
| Features | Music remote handling, call alerts, app alerts | 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 | SMS, Email, social apps, incoming calls |
| Vibrating Alert | Yes | 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 Active |
|---|
| Wireless Interface | Bluetooth 4.0 | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 |
|---|
| DISPLAY | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| Type | E Ink - monochrome | AMOLED - colour |
|---|---|---|
| Resolution | - | 466 x 466 pixels |
| Screen Size | - | 1.43" |
| Pixel Density | - | 326 ppi |
| Screen Protection | Scratch-resistant glass | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| Type | - | Touch sensitive screen, push buttons |
|---|
| CASE | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| Case Shape | - | Round |
|---|---|---|
| Bezel | - | Metal |
| Case Details | Black | Black/flame | Blue | Silver | Space black |
| BAND | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | - | 160-220 mm |
| Changeable | - | Yes |
| Clasp Type | - | Buckle |
| Band Material | Silicone | TPU |
| Band Colour | Black | White | Blue | White | Black |
| BATTERY | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| Capacity | - | 470 mAh |
|---|---|---|
| Battery Life | 7 day(s) | 12 day(s) |
| Battery Life Details | - | Typical usage - up to 12 days Power saving mode - up to 24 days GPS mode - up to 30 hour(s) |
| Rechargeable Battery | - | Yes |
| Recharge Time | - | 2.5 hour(s) |
| MISCELLANEOUS | Pebble 2 + Heart Rate | Xiaomi Watch S1 Active |
|---|
| Included Accessories | Magnetic charging cable | Magnetic charging cable |
|---|---|---|
| Preloaded Software | Silent alarm | - |
| Compliant Standards | - | GB/T 30106-2013 |
| 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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