Product Parameters: 1. Model: DT1 2. Dimensions: 43*37*11mm 3. Case Material: zinc alloy 4. Strap Material: silicone5. Screen: square IPS screen 6. Screen size: 1.8inch 7. Resolution: 320*385 8. Chip: RTL8762DK 9. Heart Sensor: BD1662_I2C 10. BT: 5.0 11. Battery Capacity: 180mAh 12. Charging Way: magnetic charging 13. Charging Time: about 3h 14. Battery Life: 3-5 days 15. Standby Time: 15-25 days 16. Waterproof: IP68 17. System requirements:Android 4.4+ / IOS 10.0+ APP:Wearpro Features: 1. Keep an eye on your health: Heart rate monitor, sleep tracker, period tracker. 2. A good helper for workout: Breathing exercise, map running routes, sports mode. 3. A good helper for daily life: BT phone calls, sync notifications, BT music, camera remote, weather, find my phone, stopwatch, brightness adjustment, lock screen password, calculator, split-screen display, alarm clock, etc. Languages: UI languages: English, Chinese, Traditional Chinese, Danish, Greek, Latin, Romanian, Turkish, Hebrew, Czech, Polish, Spanish, German, Russian, Portuguese, French, Japanese, Italian, Vietnamese, Korean, Arabic, Persian. App languages: Chinese, Traditional Chinese, English, Korean, German, Spanish, Japanese, French, Italian, Russian, Portuguese, Arabic, Ukrainian, Thai. Note: 1.The principle of smartwatch measurement is completely different from that of medical equipment. It is only for sports and fitness reference, thank you. 2.After receiving the watch, please use the 5V 1A charging adapter to charge the watch for more than 2 hours. 3.Please scan the QR code in the manual to download the APP before use Package List: smart watch*1 charging cable*1 user manual*1