| Introduction Time | 2019, June | May 31, 2021 |
|---|---|---|
| Availability Status | Available. Released August 2019 | Available, released June 1, 2021 |
| Size and Dimensions | 42 * 35 * 12.5 millimeter (mm) | 46 x 38.4 x 13 mm |
|---|---|---|
| Product Weight | 25 gram (g) | 43 gram (g) |
| Compatible SIM Card Types | No | eSIM |
|---|---|---|
| Other Body Features | Metal body, plastic band / Water resistant up to 30 meters deep | Waterproof / Display with curved edges (2.5D) |
| Display Technology | Color | |
|---|---|---|
| Screen Size | 1.28 inch | 1.78 inch (~56.8% screen-to-body ratio) |
| Display Resolution | ||
| Multi-Touch Capability | No | - |
| Screen protector type | Scratch-resistant glass | Corning Gorilla Glass |
| Display Technical Details | - | 450 nits brightness |
| OS Version | Huami proprietary | |
|---|---|---|
| Chip Model | Qualcomm Snapdragon Wear 4100 (12nm) |
| Internal Memory Capacity | Stores 60 seconds of ECG data | 8GB with 1GB RAM |
|---|
| Battery Type and Capacity | Non-removable 200 mAh battery | Non-removable 430 mAh Li-Ion battery |
|---|---|---|
| Battery Standby Time | - | Up to 36 hours |
| Smart Sensors | PPG heart rate sensor, ECG sensor, Six-axis IMU sensor | Accelerometer, Heart rate sensor with SpO2 (blood oxygen level calculation) capability, Gyroscope, Barometer, Compass |
|---|---|---|
| Other Features and Capabilities | - | Supports various sport modes, Watch face customization capability, Heart rate monitoring, Blood pressure measurement, Blood oxygen level measurement, Sleep monitoring, Breathing exercise program, Phone notification display, Alarm clock, Timer |
| Bluetooth Support | 4.2, A2DP | |
|---|---|---|
| GPS Support | No | Yes, with A-GPS, GLONASS, BDS, QZSS |
| NFC Support | No | Yes |
| Wireless Network Type | - | |
| USB Connections Type | - | No, charges via proprietary charging dock with USB Type-C port |
| Available Color Options | Black, Brown, Pink | Black, Light Blue |
|---|---|---|
| Global Price Range | - |
| CPU | - |
|---|
| Speaker Type | - | Yes |
|---|
| Communication Technologies | - |
|---|
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