Basic specs Model No: F64t temperature tape App OS: IOS8.0 & above, Android 4.4 & above Main function: 24-hour body temperature automatic monitoring, heart rate blood oxygen saturation monitoring, blood pressure, step count, distance, calories, sleep monitoring, call reminder (caller number/name), message reminder, alarm clock reminder, increase the wrist screen, Exercise mode (running, cycling, climbing, hiking, basketball, football, badminton, skipping rope, swimming, etc. Sensor: KX023 CPU chip: BK3633 RAM 64MB HR sensor: HR S3300 Temperature sensor: SC7A20C Vibration: YES Waterproof: IP68 Supported Language: Implified Chinese, Traditional Chinese, English, German, Russian, Japanese, French, Korean, Polish, Spanish. screen Size: 0.96" 80*160dpi Type: TFT Connect Bluetooth: BLE 4.0 Other specifications Strap material: TPU Host: 40*20.5*12.5mm Strap: 266*20.5*12.5mm Net weight: About 26g Color: Black, Blue, Purple Pink Others: Operation: Single point touch key, wrist senses Battery: Li-polymer battery Capacity: 90mAh Standby time: 7-10 days Charging: USB port Charging time: Approx. 2 hours