Host Size: 2600*46.5*13.5mm Weight: 57g Color: Black Master Control: MTK2523D+3335 Onboard Storage: RAM: 32Mbit, ROM : 32 Mbit APP: Zeroner health pro APP mobile application: iOS 10.0 and above, Android 5.0 and above Screen: 1.43 amoled 466*466 Resolution: 466* 466 Touch method: full touch Buttons: 2: power on/off, back Bluetooth: BLE 5.0 WIFI: NO NFC: YES > Gyroscope: Gsensor Barometer: ICP10125 Heart rate sensor: pps262 Magnetometer: MMC5603NJ GPS: AG3335 Category: Lithium Polymer Rated voltage : 3.8V Capacity: 580mAh/2,204Wh Size: 13*48*48 Zeroner Basic Function Modules: Clock, Date Display, Multi-Dial, Data Storage, OTA update Health functions: heart rate monitoring, sleep monitoring, step count monitoring, calorie monitoring, foot monitoring, activity time monitoring, distance monitoring, blood oxygen detection , pressure value function "Exercise (support setting goal reminders): Running/cycling/walking/climbing/basketball/badminton/football/sit-ups/jumping rope/yoga/dancing/aerobics/ swimming/tennis/elliptical machine/rowing machine/HIIT Back support for custom sports (100+ sports)" Reminder module: call reminder, schedule reminder, SMS notification, app reminder, work reminder alarm clock, sedentary reminder, goal achievement reminder, high heart rate reminder Other functions: altitude barometer, remote camera, music control, do not disturb mode, flashlight, compass, stopwatch, timer, 12 shift /24 hours, brightness adjustment, factory reset, firmware information, manual date and time setting, power off. > Waterproof grade: IP68 Charging time: about 2 hours Battery life: 20 days Language: English, German, Spanish, French, Italian, Japanese, Russian, Portuguese, Simplified Chinese, Traditional Chinese, etc. Bracelet size: 150mm-220mm Appearance process "Body: plastic + zinc alloy Bracelet: " Buckle material silicone+stainless steel bracelet