Main Technical Parameters Master Chip: RLC8762 Sensor: BST-BMA253 PPG chip: Everlight Electronics Virbation: Loundspeaker Mute/Vibration Waterproof level: IP67 Compatible System: Android 4.4 et ci-dessus,iOS 8.2 and above Special Features: Pression artérielle, Heart Rate Screen: TFT 0.96 Écran couleur 80*160 Bluetooth: 4.0BLE(Low power) Battery Type: Polymeter Lithium Battery Battery Capcaity: 90mAh Charging Type: Clasp type Charging Time: Sur 2 hours Endurance …