Specifications: Main chip: Spreadtrum 9820e Ram+rom514mb + 4gb G-sensor sensor: Supported Heart rate and blood pressure sensors: Supported Screen size: 1.28" Ips, 240*240 resolution Touch screen: Ctp capacitor touch screen Battery type: 650mah polymer lithium battery Standby time: About 7 days Charging mode: Magnetic suction charging Charging time: About 1-2 hours Body material: Abs + pc Watchband material: Environment-friendly liquid soft silica gel Body size: 59mm(height) * 46mm(width) * 17.3mm (thickness) Packing list: Watch *1