Hardware parameters： System requirements：Android 4.4 or above, iOS 8.0 or above CPU：1130 BT：4.0 3.0 Dual-mode Heart rate sensor：YES Motor:support LCD：1.54-inch TFT screen, resolution 128*128 Operation method：Full screen touch Battery type：Polymer Battery capacity：200mAh Standby time:7-15 Days Usage time:3-5 Days Charging method: magnetic charging Charging voitage：DC-5V Watch material：Zinc alloy shell Product size：44*38*13 Strap material：Comfortable silicone strap Net weight：35g   Package including: 1*Smart Watch 1*USB Charging Cable 1*User Manua