App: Wearpro Chip: Ruiyu RTL8762DK Flash: 128MB Bluetooth: Dual Bluetooth 5.0 Waterproof level: IP68 Product process: Zinc alloy+IML Body size: diameter 38.8 * thickness 9.0MM Screen size: 1.3 inches full circle Screen resolution: 360 * 360 Screen type: AMOLED full view color screen Screen material: OLED Total length of wrist strap: 260 millimeters Battery voltage: 4.35v Battery capacity: 200mAh Battery life: 4-5 days of normal connection and 10-15 days of standby. (Connection usage depends on personal usage) Charging time: about 3 hours Features: Breath training, dial push, stopwatch, brightness adjustment, multiple exercise modes, sleep, heart rate, blood oxygen, information, remote music, remote photography, weather, search for phone (connected to phone), Bluetooth call, Bluetooth music playback, password protection, calculator, split screen display, shortcut widget, weather, female assistant, massager, QR code The app supports languages: Chinese, Traditional Chinese, English, Korean, German, Spanish, Japanese, French, Italian, Russian, Portuguese, Arabic, Ukrainian, Thai The device supports languages such as Chinese, English, German, Russian, Spanish, Portugal, French, Japanese, Italy, Polish, Korean, Thai, Vietnamese, Arabic, and Persian