Bluetooth V5.2 Connectivity 1.6 IPS Colorful Touch Screen 2.5D Arc Glass Display Ip67 Water Resist Heart Rate Monitor (Bpm) Blood Pressure Monitor / Sp - O2 Blood Oxygen Builtin Rechargeable Battery Android / i - OS APP Support 2 point absorption USB Charger (Note: This item must be used with a USB Port or USB Power Adapter with an output NOT exceeding 5V, 1A when charging. Avoid using low quality or fake power adapters to avoid bursting or fire) General Display 1.6 inch IPS 2.5D Arc Glass Bluetooth V5.2 Sensor Heart Rate, Blood Oxygen, Sp - O2 Blood Oxygen Dustproof / Waterproof Ip67 Functions Bluetooth Call, Heart - Rate, Blood Pressure, Blood Oxygen, 3D Pedometer, Sleep Monitor, Text Push, Sedentary Reminder, Social Media Reminder, Remote Camera & Music, Alarm Clock, Stopwatch, Find Phone, Weather Forecast Vibration Alert Yes Charge 2 point absorption USB Charger (Note: This item must be used with a USB Port or USB Power Adapter with an output NOT exceeding 5V, 1A when charging. Avoid using low quality or fake power adapters to avoid bursting or fire) Battery 200m - Ah Rechargeable Working Time about 37 days Standby Time about 30 days APP Compatibility Android / i - OS APP Support Dial Display 100+ Dials (Through App) Bluetooth Chip Rtl8763Brc Multisport Mode run, climb, football, ride, basketball, jump, etc Material 2.5D Glass, Silicone, Rubber