1.6 Inch AMOLED Screen1.6 Inch AMOLED Inch high-resolution round full touch screen320360 makes the displayed content more vivid and beautiful. A bigger screen fit the width of the wrist bring a pleasant feeling of wearing.Heart Rate Monitor/Blood oxygen MonitorIt can accurately monitor pulses and the active and resting heart rate changes to generate a professional heart rate report. Support blood pressure monitor(It's non-professional medical equipment Blood oxygen data is only as a reference ).Sleep MonitorIt monitors your sleep quality through measurement of duration for deep sleep non-REM sleep and waking conditions.5ATM Waterproof5ATM Professional protection level which means you could wear it even in the rain hand washing don't worry about it. It can easily deal with daily waterproofing (It cannot swim or contact hot water).Multiple Sports ModesIt has multi 117 sports modes: Outdoor running Walking Free training Indoor training Riding etc.Long Time Standby225mah Battery long standby time up to 5-7 days in the ordinary situation saves the frequent charging trouble.More FunctionsTime Sleep time Off display Standard exercises functions (Pedometer CalorieConsumption Distance Calculation) Calls to remind SMS Reminder Third-party messaging reminder etc.a. Need Set 'Xiaomi Wear' Region China for connecting Redmi Watch 2b. Have to Live China for All-NFC Maybe door-access works outsidec. Default language Chinese After updating Firmware to the newest Version 1.1.198 Redmi watch 2 can support English UI. Please make sure before buying.