Water Resistance Rating: 5 ATM Display Type: AMOLED Size: 0.95 Inches Touch Screen: On-cell capacitive touchscreen Display Protection: 2.5D Scratch – Resistant tempered glass Operating System: Android 4.4 or above and iOS 9.0 Network: Standard Sim Connectivity: Bluetooth 5.0 Battery: 14-Days / 130 mAh Capacity Resolution: 128x220 pixels, 200 nits brightness Sensors: 3 Axis acceleration sensor,PPG Weight: 13g