KM88 1.32 inch Color Screen Smart Watch, Support Bluetooth Call Health Monitoring About Product 1. Chipset:AT3085S 2. Bluetooth Version: BLE 5.3 3. Battery capacity: 200mAh 4. Bracelet memory:Flash256MB 5. Standby time: About 15 days 6. Working time:About 3-6 days 7. Charging method: Magnetic charging 8. APP: GloryfitPro 9. APP supports languages: English, Chinese (Simplified), Arabic, Russian, Turkish, Japanese, Czech, German, Spanish, French, Hungarian, Indonesia, Italy, Hindi, Dutch, Polish, Portuguese, Italian, Romanian, Bengali, Thai, Vietnamese, Korean, New Zealand, Norwegian, Finnish, Swedish, Danish, Chinese (Traditional), Ukrainian (default: English) (30 languages, depending on the mobile phone system) 10. Watch supports languages: Chinese, English, Japanese, German, Spanish, French, Italian, Portuguese, Arab, Polish, Russian, Czech, Turkish, Greek, Hungarian, Persian (default: English) (18 languages, set on the APP) 11. System requirements: android5.0 or above ios9.0 or above Main Function 1. Heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. Bluetooth call,multiple sport modes,call reminder,SMS reminder,third-party messaging reminder 5. Music control, find phone, rest screen clock, stopwatch, voice control, timer, calculator 6. Breathing training, remote photography, women's health,water reminder, do not disturb mode