CF12 1.2 inch Waterproof Smart Silicone Strap Wristband Support Heart Rate Monitoring Blood Pressure Monitoring 1. Functions: master control 8763E, call, music, electricity reminder push, SMS reminder push, WeChat reminder push, QQ reminder push, exercise record (step counting, mileage, etc.), sleep monitoring, sedentary reminder, calorie counting, stopwatch, Raise your hand to brighten the screen, dynamic heart rate, blood pressure, vibration, more than 100 sports modes, 10 sets of themes, remote camera, music control, smart alarm, weather forecast, multi-dial switching, WeChat sports, female menstrual cycle. 2. Chip: Realtek8763EWE 3. Compatible system: App(Da Fit) Android4.4 or above, IOS9.0 or above 4. ROM: 640KB, RAM: 578KB, external storage flash: 128MB (not included) 5. Display: Type: Full screen touch IPS TFT Size: 1.2 inches Pixels: 240x240 6. Bluetooth connection: BT5.2, transmission range: about 20m 7. Gravity sensor: SC7A20 8. Heart rate sensor: HRS3600 9. Battery capacity: 200mAh 10. Charging method: Magnetic charging 11. Waterproof grade: IP67 12. Over the Air (FOTA): OTG 13. Bracelet languages: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italian, Portuguese 14. App supports languages: English, Arabic, Danish, German, Spanish, Finnish, French, Italian, Japanese, Korean, Dutch, Norwegian, Polish, Portuguese, Russian, Swedish, Thai, Ukrainian, Chinese, Traditional Chinese, etc. 15. Size: 40.6x10.65mm 16. Strap material: Silicone