1. Bluetooth chip 5.2, 0.96 color screen 2. Host plastic material, wristband silicone material 3. Single-touch key operation 4. Battery capacity: 90mAh, 2H charging, about 5 days of normal use 5. Equipment requirements: Android 5.0, IOS8.0 and above 6. Support 13 languages including Chinese, English, Japanese, Spanish, Portuguese, Korean and German 7. Function description: exercise record (pedometer, calorie burn, mileage), sleep monitoring (display the sleep quality trend chart for each time period), support call reminder, SMS, WeChat, QQ push, alarm clock reminder, support remote camera , Weather forecast, etc.