Fangrui Product Details 1. Kc08 1.28 Inch Ips Screen Smart Wristband, Support Sleep Monitoringheart Rate Monitoring 2. System Requirements: Android 4.4 And Above, Ios 9.0 And Above, Support Bluetooth 5.0 3. Bluetooth Version: Ble 5.0 4. Bluetooth Chip: Huiding Gr5515i0nd 5. Heart Rate Chip: Tianyihexin Hrs3300 6. Bracelet Memory: Ram 256kb+rom 64mb 7. Screen Display: 1.28-inch Ips Screen, Resolution 240x240 8. Battery Capacity: 200mah 9. Standby Time: About 15 Days 10. Working Time: About 4-6 Days 11. Waterproof Grade: Ip67 12. Sensor: Silan Micro Sc7a205 13. Ui Language: Ui Default Is 13 Languages: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Italian, Portuguese 14. Bracelet Font Language: English, German, French, Italian, Greek, Latin, Spanish, Portuguese, Romanian, Polish, Russian, Ukrainian, Ruthenian, Belarusian, Bulgarian English, Serbian, Macedonian, Croatian, Bosnian, Thai, Hindi, Sanskrit, Nepali, Cambodian, Vietnamese, Lao, Persian, Kurdish, Pashto, Punjabi, Turkic Language, Berber, Malay, Turkish 15. App Supports Languages: Arabic, Bulgarian, Czech, Danish, German, Spanish, Finnish, French, Indian, Croatian, Indonesian, Italian, Japanese, Korean, Norwegian, Dutch, Polish, Pashto, Portuguese, Russian, Swedish , Thailand, Ukraine, Vietnam, Simplified Chinese, English, Traditional Chinese 27 Languages 16. Functions: Time And Date Display, Step Counting, Calories, Distance, Stopwatch, Countdown, Heart Rate Monitoring, Blood Pressure Monitoring, Blood Oxygen Monitoring, Sleep Monitoring (sleep Time, Sleep Quality), Bracelet Brightness Adjustment, Bracelet Mac Address Viewing, 16 Sports Modes, Gps Track Function In App (the Watch Itself Does Not Have Gps Positioning Function), Call Reminder, Message Reminder, Sedentary Reminder, Alarm Clock Reminder, Wechat Sports Access, Sports Goal Setting, Fitness Information Sharing, Smart Alarm Clock , Raise Your Hand To Turn On The Screen, Turn On The Screen Time, Find A Mobile Phone, Reject A Call, Shake To Take A Photo, Etc. 17. 1