Parameter Touch screen mode: full screen touch Screen size: 1.39 inches HD screen Display resolution: 360*360 Flash: 128M Bluetooth version: BLE5.2 Battery capacity: 260mAh Charging time: 2h Use time: 5-7 days Standby time: 25-30 days Waterproof grade: IP67 APP name: Fit Cloud Pro Adapt to Android system: 4.4 or above Adapt to IOS: above 9.0 [Function] Heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, body temperature monitoring, breathing training, breathing rate, female Adultstrual cycle, status (step counting, calories, distance ), sports mode, audio bluetooth, audio switch, dial pad, incoming call reminder, incoming call answering, incoming call rejecting, playing music, message push, sedentary reminder, alarm clock reminder, turning wrist to turn on the screen, backhand to turn off the screen, do not disturb mode, Shake to take pictures, find mobile phone, brightness adjustAdultt, music control, dial switch, custom dial, APP massive dial, step counting, countdown, stopwatch, goal achieveAdultt reminder, sleep monitoring [language] Bracelet support languages: Chinese, English, GerAdult, Russian, Spanish, Portuguese, French, Japanese, Italian, Polish, factory default English App supported languages: Russian, Indonesian, GerAdult, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean [packing list] Smart watch, Adultual, charger, packing box