| Introduction Time | December 2020 | November 17, 2021 |
|---|---|---|
| Availability Status | Available. Released December 2020 | Available, released December 10, 2021 |
| Size and Dimensions | 8.95 * 35.8 * 40.5 millimeter (mm) | 46 x 42 x 11.9 mm |
|---|---|---|
| Product Weight | 19.5 gram (g) | 29 g (Without Strap) / 45.8 g (With Strap) |
| Compatible SIM Card Types | No | No |
|---|---|---|
| Other Body Features | Aluminum body / Silicone band / Water resistant up to 5 ATM (50 meters deep) |
| Display Technology | ||
|---|---|---|
| Screen Size | 1.55 inch | 1.3 inch |
| Display Resolution | ||
| Display Technical Details | - | Always-on Display |
| OS Version | Proprietary OS compatible with Android and iOS | Proprietary OS compatible with Android 5.0 and later and iOS |
|---|
| Battery Type and Capacity | Non-removable 220 mAh Li-Ion battery | Non-removable 355 mAh Li-Ion battery (fully charged in one hour) |
|---|---|---|
| Battery Standby Time |
| Smart Sensors | Huami's proprietary sensor (BioTracker™ 2 PPG) with blood oxygen calculation, Accelerometer, Gyroscope, Altimeter, Ambient light sensor, Vibration motor, Microphone | Accelerometer sensor, Gyroscope, Optical heart rate sensor with SpO2 (blood oxygen level) calculation capability |
|---|---|---|
| Other Features and Capabilities | Heart rate monitoring, Blood oxygen level measurement, Sleep monitoring, Health monitoring, Supports over 70 sport modes, Supports Amazon Alexa voice assistant | Supports 26 different sport modes, Heart rate monitoring, Blood oxygen level measurement, Sleep monitoring, Body weight monitoring, Watch face customization capability, Phone and calendar notification display, Timer, Alarm clock |
| Messaging Method | - | Received notification alerts / Display text messages |
| Communication Technologies | No | No cellular connectivity |
|---|
| Wireless Network Type | No | No |
|---|---|---|
| Bluetooth Support | Bluetooth 5.0 | 5.0, A2DP, LE |
| GPS Support | Yes | Yes |
| NFC Support | No | Yes |
| USB Connections Type | No, charges via proprietary charging dock | No, charges with proprietary magnetic charger |
| Available Color Options | Black, Pink, Green | Black, Silver |
|---|---|---|
| Global Price Range | - |
| Speaker Type | - | No |
|---|
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