| Introduction Time | November 1, 2021 | 2019, June |
|---|---|---|
| Availability Status | Available, released November 11, 2021 | Available. Released August 2019 |
| Size and Dimensions | 41.2 x 35.3 x 10.7 mm | 42 * 35 * 12.5 millimeter (mm) |
|---|---|---|
| Product Weight | 35 g (With Strap) | 25 gram (g) |
| Compatible SIM Card Types | No | No |
|---|---|---|
| Other Body Features | Rectangular body / Water resistant up to 5 ATM (50 meters deep) / Silicone band | Metal body, plastic band / Water resistant up to 30 meters deep |
| Display Technology | Color | |
|---|---|---|
| Screen Size | 1.55 inch | 1.28 inch |
| Display Resolution | ||
| Multi-Touch Capability | - | No |
| Screen protector type | - | Scratch-resistant glass |
| OS Version | Proprietary OS compatible with Android and iOS | Huami proprietary |
|---|---|---|
| Chip Model | - |
| Speaker Type | No | - |
|---|
| Battery Type and Capacity | Non-removable 262 mAh Li-Ion battery | Non-removable 200 mAh battery |
|---|---|---|
| Battery Standby Time | Up to 14 hours (GPS on and sports mode) / Up to 5 days (heavy usage) / Up to 10 days (normal usage) | - |
| Smart Sensors | Accelerometer sensor, Gyroscope, Optical heart rate sensor with SpO2 (blood oxygen level calculation) capability, Compass | PPG heart rate sensor, ECG sensor, Six-axis IMU sensor |
|---|---|---|
| Messaging Method | Received notification announcement / Display received emails | - |
| Communication Technologies | No cellular connectivity | - |
|---|
| Wireless Network Type | No | - |
|---|---|---|
| Bluetooth Support | Yes, Version 5.0 | |
| GPS Support | Yes, with A-GPS, GLONASS, GALILEO, BDS | No |
| NFC Support | No | No |
| USB Connections Type | No, charges with proprietary magnetic charger | - |
| Available Color Options | Black, Blue, Bone White | Black, Brown, Pink |
|---|
| Internal Memory Capacity | - | Stores 60 seconds of ECG data |
|---|
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