1. Bluetooth chip 4.2, 0.96 color screen 2. 2.5D glass + plastic, wristband silicone material 3. Single-touch key operation 4. 180mAh battery, 2H charging, about 7 days of normal use 5. Equipment requirements: Android 5.0, IOS 9.0 and above 6. Support 13 languages including Chinese, English, Japanese, Spanish, Portuguese, Korean and German 7. Functions: exercise record (pedometer, calorie burn, mileage), sleep monitoring, support call reminder, SMS, WeChat, QQ push, alarm clock reminder, support remote camera, weather forecast display, music control, etc.