Specifications 1. Main CPU: RTL8762DK+HN333 2. Memory RAM+ROM: RAM:256KB+ROM:192KB(Flash 64MB) 3. Screen display LCD: 1.83 inches IPS screen Resolution: 240*284 4. Display brightness / assembly brightness: more than 300 lumens 5. Touch screen: G+F, anti-fingerprint oil, hardness 6H 6. Material: Zinc alloy middle frame + plastic bottom case (ABS) + silicone strap 7. BT version: BT 5.1 8. Battery capacity: Polymer lithium battery 410mAh with battery protection IC 9. Standby time: 30 days 10. Working time: About 10 days 11. Charging time: 3 hours 12. Gravity sensor: Sitron STK8321 13. Heart rate sensor: X3605 14. Motor: Built-in, size: Flat motor 0827 15. Charging cable: Magnetic charging cable with patch protection IC 16. Speaker: AAC-1508 (waterproof speaker) 17. Microphone: TMG4015FS-W38 (waterproof microphone) 18. Waterproof grade: IP67 19. Charger requirements specifications: Accessories do not include chargers, charging 1A or below Functions 1. APP: Fitcloudpro 2. Functions: BT call, heart rate detection, blood oxygen detection, blood pressure detection, time display, step counting, calories, distance, heart rate, multiple sports modes, sleep monitoring (sleep time, sleep quality), call notification, message reminder, Multi-language push, task reminder (sedentary reminder), sync data to APK/APP 3. APP/APK download method: Android and iOS application synchronization: Fitcloudpro (Note: (iOS system is in the app store, and Android phones search for fitcloudpro in the app store to download and install)/QR code scan to download and install fitcloudpro) 4. System requirements: Android 5.0 and above, iOS 10.0 and above, support BT 5.0 5. Watch support languages: Chinese, English (default), German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese, Vietnamese, Kor, Arabic, Hebrew, Thai, Croatian, Turkish Chinese, Czech, Dutch+Indonesian, Malay, Finnish, Greek, Romanian 6. Push support languages: Chinese, English (default), German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese, Vietnamese, Kor, Arabic, Hebrew, Thai, Croatian, Turkish Chinese, Czech, Dutch+Indonesian, Malay, Finnish, Greek, Romanian