Resolution: HD 360*360 Bluetooth: Dual Bluetooth 5.0 Heart rate: Zhan Heng BD1662_I2C (true heart rate true blood oxygen) Charging method: wireless charging Battery capacity: 3.7V/315mAh (lithium battery 551833 with protection board) APP software: Wearpro App languages: Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Italian, Polish, Korean, Arabic, Farsi, Thai, Vietnamese, Chinese Traditional, Greek, Romanian. Turkish, Hebrew, Czech. Supported languages: English, Chinese, Chinese Traditional, Danish, Greek, Latin, Romanian, Turkish, Hebrew, Czech, Polish, Spanish, German, Russian, Portuguese, French, Japanese, Italian, Vietnamese, Korean, Arabic, Farsi Functions: Breathing training, dial push, stopwatch, brightness adjustment, multi-sport mode, sleep, heart rate, information, remote music, remote photo, weather, find mobile phone (connect mobile phone to use), Bluetooth call, Bluetooth music playback, password protection, calculator, split screen display, quick widget, meteorology, massager, Alipay, My QR code
