Description: Waterproof grade: IP68 Screen size: 1.39 inches Screen type: TFT TP material: High hardness glass Wrist strap material: TPU monochrome Watch size (length x width x height) mm: 31.4 * 44 * 10.5mm MCU Realtek8763EW GSENSOR: Shilan Micro SC7A20 Key: Touch the key lightly MIC: MiTou PPG heart rate sensor: HX3605 Touch chip: GST816D Motor: Flat motor Screen resolution: 360 * 360 resolution Flash128Mb Bluetooth: BLE5.3 Working voltage: 3.7V Battery capacity: 200mAh Battery type: Polymer lithium battery (Seiko) Charging method: contact charging Charging time: 2 hours, 25 constant temperature IOS: Mobile system version support Android: Mobile system version support Band language: English Clock and date display: 12/24 hour system Specifications: 1. The dynamic dial watch comes with 5 dials, the app can be switched, supports custom dials, and personalized photos 2. Data storage 30 day data overview, 7 day data details, APP historical data 3. Multiple indoor/outdoor/outdoor sports modes 4. When receiving an incoming call signal, display an incoming call reminder 5. SMS notification: The phone receives the SMS message and pushes it to the bracelet reminder 6. Application push notifications WeChat, QQ, Skype, WhatsApp, Facebook Messenger, Linkedin, Twitter, Viber, LINE, Maii, Outlook, lnstagram, Snapchat, Gmail 7. Alarm reminder can synchronize the phone's alarm clock, supporting the functions of turning off and pausing 8. Goal achievement reminder: When a sports goal is achieved, this reminder is displayed 9. When the binding reminder app binds the bracelet, a confirmation binding reminder is displayed on the bracelet 10. Band language (factory default English) English, Russian, Spanish, Portuguese, Japanese 11, Korean, German, French, Arabic, Ukrainian, Italian, Indonesian, Thai, Chinese, Traditional Chinese 11. The stopwatch is precise in timing 12. The timer can be set to a maximum of 23 hours, 59 minutes, and 59 seconds 13. Restore factory settings, clear device data, and restore factory default settings 14. Firmware Information Viewing Device Related Information (Firmware Version, Bluetooth Address, etc.) 15. Restart the bracelet 16. Turn off the bracelet device and enter the shutdown state. You can press and hold the physical button below to turn it on 17. Automatic screen illumination for wrist lifting Package Included: 1 * Watch 1 * Charging cable 1 * Instructions