| Introduction Time | December 2020 | July 26, 2022 |
|---|---|---|
| Availability Status | Available. Released December 2020 | Available, released August 2, 2022 |
| Size and Dimensions | 8.95 * 35.8 * 40.5 millimeter (mm) | 45 x 37 x 11.5 mm |
|---|---|---|
| Product Weight | 19.5 gram (g) | Without Strap: 40 g / With Strap: 54 g |
| Compatible SIM Card Types | No | No |
|---|---|---|
| Other Body Features | Rectangular metal body / Silicone band / IP68 certified for water and dust resistance (up to 1.5 meters) |
| Display Technology | ||
|---|---|---|
| Screen Size | 1.55 inch | 1.8 inch (~67.5% screen-to-body ratio) |
| Display Resolution |
| OS Version | Proprietary OS compatible with Android and iOS | Proprietary OS compatible with Android and iOS |
|---|
| Battery Type and Capacity | Non-removable 220 mAh Li-Ion battery | Non-removable 340 mAh Li-Ion battery (fully charged in 2.5 hours) |
|---|---|---|
| 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, 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 110 sport modes, heart rate monitoring, blood oxygen level measurement, sleep status, stress monitoring, watch face customization, weather display, phone and calendar notification display, date and time display, timer, alarm |
| Messaging Method | - | Received notification alerts / Display text messages |
| Communication Technologies | No | No cellular connectivity |
|---|
| Wireless Network Type | No | No |
|---|---|---|
| Bluetooth Support | Bluetooth 5.0 | 5.3, A2DP, LE |
| GPS Support | Yes | No |
| NFC Support | No | No |
| USB Connections Type | No, charges via proprietary charging dock | No, charges via proprietary charging dock |
| Available Color Options | Black, Pink, Green | Black, Gray |
|---|---|---|
| Global Price Range | - |
| Speaker Type | - | Yes |
|---|
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