Support accurate real-time blood pressure, blood oxygen and heart rate measurement Multi-sport modes(Walking, Running, Cycling, Skipping), support data recording in sports mode, monitoring motion status, With Pedometer function, support steps, calories, distance tracking Support sleep quality monitoring Support instant messages from Whatsapp, skype, news, etc Other setting includes Alarm, Brightness adjustment, Mute setting, Reset, Power Off, etc Bluetooth 4.0 connectivity, stable signals and low power consumption Widely compatible with Android 5.1 or above and iOS 9.0 or above smartphone Specification: APP: Da fit Type of battery: Lithium polymer battery Battery Capacty: 140mAh, working time: 3 days standy time: 8 days CPU: HS6620D Memory: RAM 128KB+ ROM 256KB,SPI 4MB Bluetooth: Ver 4.0 Languages:Chinese French Spanish English Russian Japanese Portuguese Screen Size:1.3 inch TFT round screen Touch Screen: Single Touch Resolution: 240*240 pixel Compatability: Android 5.1 / iOS 9.0 and above Sensors: Heart-rate sensor, Gravity sensor People: Unisex Case material: Plastic material case + Interchangeable TPU watchband Dimension: 50*45*9.6mm