Matching: Android4.4 + IOS8.0 + Bluetooth4.0 axis sensor: 3D ACCELERATED chip: NRF51822 Bluetooth: 4.0BLE Screen size: 0.96 / TFT water level: IP67 Battery Type: lithium polymer battery Battery capacity: 85 mAh charging : USB charging charging time: about 1.5h life: for 7 days, 15 days standby