| Introduction Time | 2019, January | April 30, 2021 |
|---|---|---|
| Availability Status | Available. Released January 2019 | Available, released May 20, 2021 |
| Size and Dimensions | 40 * 19 * 10 millimeter (mm) | 35.7 x 25.8 x 12.2 mm |
|---|---|---|
| Product Weight | 32 gram (g) | 38 gram (g) |
| Compatible SIM Card Types | No | No |
|---|---|---|
| Other Body Features | Made of polycarbonate and stainless steel / Water resistant up to 50 meters deep | IP68 certified for water and dust resistance (up to 1.5 meters) |
| Display Technology | Color IPS LCD | |
|---|---|---|
| Screen Size | 1.23 inch | 1.4 inch |
| Multi-Touch Capability | No | - |
| Screen protector type | Anti-smudge fingerprint coating | - |
| Display Technical Details | 600 nits peak brightness | |
| Display Resolution | - |
| OS Version | Huami proprietary OS | Proprietary OS compatible with Android and iOS |
|---|
| Battery Type and Capacity | Non-removable 160 mAh Li-Po battery | Non-removable 315 mAh Li-Ion battery |
|---|---|---|
| Battery Standby Time | 20 day |
| Smart Sensors | 3-axis accelerometer, Optical heart rate sensor (PPG), Wearing detection sensor, NFC | Accelerometer sensor, Optical heart rate sensor with SpO2 (blood oxygen level) calculation capability |
|---|---|---|
| Other Features and Capabilities | Pedometer, Calories burned calculation, Distance traveled calculation, Sport mode, Sleep monitoring, Timer, Alarm, Weather, NFC payment, Call and message notification | - |
| Messaging Method | - | Received notification alerts / Display text messages |
| Bluetooth Support | 5.0, A2DP, LE | |
|---|---|---|
| GPS Support | No | No |
| NFC Support | Yes | No |
| Wireless Network Type | - | No |
| USB Connections Type | - | No, charges via proprietary charging dock |
| Available Color Options | Orange, Yellow, Blue, Red, Gray, Black | Black |
|---|---|---|
| Global Price Range |
| Speaker Type | - | No |
|---|
| Communication Technologies | - | No cellular connectivity |
|---|
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