Silicone Color Screen Full Circle Heart Rate Sports Watch $ 24.92 Product information: Screen size: 1.3 inches Appearance size: 2504712mm Material: zinc alloy Battery capacity: 180mah Body memory: 512MB Wearing method: wrist strap Operation mode: touch Interface: USB 2.0 Wireless distance: 5m (inclusive) -10m (inclusive) Wristband material: silicone