Screen: 1.43-inch AMOLED HD; resolution 466*466Touch: full touch screen,Button: 2 buttons with encoderBluetooth: BLE5.2Battery: 300mAhWaterproof rating: IP68Strap size: 22mm*225mmSystem support: Android 4.4 and above, IOS 9.0 and above, Apple and aboveFunctions:Continuous heart rate, accurate SV algorithm, motion recognition. One-touch connection, Bluetooth call, real blood oxygen saturation, blood pressure monitoring, brightness adjustment, breathing training, voice assistant, raise your hand to light up the screen, information prompts, multiple sports modes, predicted time, flashlight, clock display, alarm clock, SOS, calculator, female menstrual cycle, music playback, multi-function dial, custom wallpaper, pressure, one-touch health measurement, sedentary reminder, do not disturb mode, search bracelet, remote photography, sleep monitoring, step counting, distance, caloriesLanguage:APP language: Ukrainian, Russian, Indonesian, Turkish, Hebrew, German, Italian, Czech, Slovak, Japanese, French, Polish, Thai, Simplified Chinese, Traditional Chinese, Romanian, English, Portuguese, Mongolian, Spanish, Arabic, KoreanProduct list:Smart watch*1Instruction manual*1Free earphones*1Watch strap*2Charger*1Original box*1