| Introduction Time | 2019, June | November 26, 2020 |
|---|---|---|
| Availability Status | Available. Released August 2019 | Available, released December 1, 2020 |
| Size and Dimensions | 42 * 35 * 12.5 millimeter (mm) | 41 x 35 x 11.9 mm |
|---|---|---|
| Product Weight | 25 gram (g) | 35 gram (g) |
| Compatible SIM Card Types | No | No |
|---|---|---|
| Other Body Features | Metal body, plastic band / Water resistant up to 30 meters deep | Plastic back, plastic frame / Water resistant up to 5 ATM or 50 meters depth |
| Display Technology | Color | |
|---|---|---|
| Screen Size | 1.28 inch | 1.4 inch (~44.1% screen-to-body ratio) |
| Display Resolution | ||
| Multi-Touch Capability | No | - |
| Screen protector type | Scratch-resistant glass | - |
| OS Version | Huami proprietary | Xiaomi proprietary OS compatible with Android 5 and later and iOS version 10 and later |
|---|---|---|
| Chip Model | - |
| Internal Memory Capacity | Stores 60 seconds of ECG data | - |
|---|
| Battery Type and Capacity | Non-removable 200 mAh battery | Non-removable 230 mAh Li-Ion battery |
|---|---|---|
| Battery Standby Time | - |
| Smart Sensors | PPG heart rate sensor, ECG sensor, Six-axis IMU sensor | Accelerometer, Heart rate monitoring, Compass |
|---|---|---|
| Messaging Method | - | Email, IM |
| Other Features and Capabilities | - |
| Bluetooth Support | 5.0, A2DP, LE | |
|---|---|---|
| GPS Support | No | No |
| NFC Support | No | Yes |
| Wireless Network Type | - | No |
| USB Connections Type | - | No |
| Available Color Options | Black, Brown, Pink | Black, Blue, Cream |
|---|---|---|
| Global Price Range | - |
| Speaker Type | - | No |
|---|
| Communication Technologies | - | No cellular connectivity |
|---|
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