M103 1.35 inch IPS Color Screen IP67 Waterproof Smart Watch, Support Sleep Monitoring Heart Rate Monitoring Bluetooth Call Music Playback, Style: Silicone Strap 1. Main chip: Realtek 8762DT+ Jerry AC6959A 2. Acceleration sensor: Lanwei SC7A20 3. Screen: 1.35 inch IPS color screen 4. Resolution: 390x390 5. Charging method: dedicated charging cable 6. Bluetooth: Bluetooth 3.0 for calls, Bluetooth 5.0 for watches 7. Standby use: BLE connection is used for 6-10 days, dual Bluetooth connection is used for about 3-6 days (connection use depends on personal use), theoretical standby for 20 days, continuous call or music playback for 5 hours 8. Battery capacity: 280MAH 9. Charging time: about 2 hours 10. System compatibility: support Android 4.4 and above, IOS9.0 and above 11. Watch icon language: Simplified Chinese, Traditional Chinese, English, French, Spanish, Russian, Portuguese, Korean, German, Arabic, Ukrainian, Italian, Polish, Czech 12. App languages: Danish, Ukrainian, Russian, Bulgarian, Bokmal, Norwegian, Hindi, Indonesian, Turkish, Greek, German, Italian, Czech, Slovak, Japanese, Pushto, French, Polish, Thai, Swedish, Simplified Chinese, Traditional Chinese, Romanian, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay 13. Information push language: according to the phone language, all support 14. Body material: ABS environmental protection plastic + zinc alloy + glass 15. Functions: pedometercalorie, sleep monitoring, alarm reminder, call rejection, call answer, Bluetooth call, music playback, raise your hand to brighten the screen, screen brightness adjustment, weather synchronization, contact synchronization, Bluetooth dialing, stopwatch, Multi-sports mode, sedentary reminder, drinking reminder, breathing exercise, call reminderSMS reminder, other push, WeChat exercise, heart rate monitoring, remote camera, remote camera, etc.