| Availability Status | Available, released to market | Available. Released May 2015 |
|---|---|---|
| Introduction Time | - | 2014, September |
| Size and Dimensions | 46 x 46 x 10.6 mm | 38.6 x 33.3 x 10.5 mm |
|---|---|---|
| Product Weight | 35g (without strap) | 40g (body) |
| Compatible SIM Card Types | No | No |
|---|---|---|
| Other Body Features | Fiber-reinforced polymer body / Aluminum alloy frame / Nylon or silicone band / Water resistant up to 5 ATM (50 meters deep) | IPX7 certified / Water resistant up to 1 meter for 30 minutes / Stainless steel and ceramic |
| Display Technology | ||
|---|---|---|
| Screen Size | 1.5 inch (~73.4% screen-to-body ratio) | 1.5 inch (~55.1% screen-to-body ratio) |
| Display Resolution | ||
| Screen protector type | Tempered glass / Anti-fingerprint coating | Sapphire protective glass |
| Display Technical Details | Max brightness up to 1500 nits / Always-on Display / 22mm band width | Display with 3D Touch / 450 nits display brightness |
| Multi-Touch Capability | - | Yes |
| OS Version | Proprietary ZEPP OS 3.0 compatible with Android 7.0 and later and iOS version 14.0 and later | watchOS 1.0, upgradable to 4.0 |
|---|---|---|
| Chip Model | - |
| Alert Type | Vibrate | Vibrate; Ringtones |
|---|---|---|
| Speaker Type | Yes | Yes |
| Battery Type and Capacity | 475 mAh (fully charged in 2 hours) | Non-removable 205 mAh Li-Ion battery (0.78 Wh) |
|---|---|---|
| Battery Standby Time | Up to 18 hours (combined usage) |
| Smart Sensors | Optical heart rate sensor with SpO2 monitoring, PPG biometric sensor, BIA bioelectrical impedance sensor for body fat measurement, accelerometer, gyroscope, geomagnetic sensor, barometer, ambient light sensor, thermometer | Accelerometer, Gyroscope, Heart rate sensor |
|---|---|---|
| Messaging Method | Received notification alerts / Display text messages | SMS, Email, IM |
| Other Features and Capabilities | - | MP3 player / Photo viewer / Siri voice commands |
| Communication Technologies | No cellular connectivity | No cellular connectivity |
|---|
| Wireless Network Type | ||
|---|---|---|
| Bluetooth Support | ||
| GPS Support | Yes | No |
| NFC Support | Yes | Yes |
| USB Connections Type | No, charges with proprietary magnetic charger | No |
| Available Color Options | Gray, Black | |
|---|---|---|
| Global Price Range | - |
| CPU | - | |
|---|---|---|
| GPU Model | - |
| Internal Memory Capacity | - | 8GB, 512MB RAM |
|---|
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