1.9" Large HD 2.5D curved glass screen with high resolution, clear pictures The use of high-fidelity unit speakers supports Bluetooth hands-free communication Supports a wide range of indoor and outdoor sports With heart rate monitoring, oxygen monitoring, stress tests and other functions With women's health and Bluetooth music function Detecting sleep quality, combined with heart rate detection, sleep breathing, big data and other analyses With intelligent voice assistant and NFC function Specifications: Model CY12 Compatible with the system IOS/Android Function Chip: JL 7012(single-core dual-mode,single-connected with IOS/Android), five UI menu styles, AI voice assistant, breathing training, dial push, stopwatch, brightness adjustment, multi sport mode, sleep, heart rate, blood pressure, blood oxygen, wallet, business card, information, remote music, remote photography, weather, finding mobile phone (connected to mobile phone), Bluetooth call, Bluetooth music playing, password protection, Calculator, split screen display, shortcut widget, weather, motion trajectory, etc App Supported languages Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Italian, Polish, Korean, Arabic, Farsi, Thai, Vietnamese, Traditional Chinese, Danish, Greek, Latin, Romanian. Turkish, Hebrew, Czech Device side support languages English, Chinese, Türkiye, Russian, Spain, Italy, Portugal, German, French, Netherlands, Poland, Czech, Thai, Greece, Vietnam, Arabia, Indonesia, Hebrew, Romania Manual support language (neutral, brand matching) Chinese, English app CO FIT chip Chip: JL 7012 The Android system Support Android 4.4 or later IOS IOS10.0 or later Heart rate sensor VC30F(With in vivo detection) Bluetooth Bluetooth 5.0 Waterproof level IP67 The fuselage net weight 40g The screen size 1.9-inch Screen resolution 240*296 Screen type IPS Full view color screen The screen material glass Total length of wrist strap 260 mm The battery type Pure cobalt battery core+precision work protection plate The battery model 451726polymer The battery voltage 3.7V Battery capacity 220mAh Battery life Normal connection use 7-10 days, standby 15-20 days. (Connection usage depends on personal usage) Charging way Magnetic charging Charging time About 2 hours