Color screen digital smart card watch $ 11.93 Color screen digital smart card watch Applicable platform: fully compatible Screen size: 1.54 Interface: USB 2.0 Camera: 1.3 million pixels Body memory: 32M Screen material: zinc alloy Wearing style: wrist strap Wireless distance: 5m (inclusive) -10m (inclusive) Battery capacity: 380 mA Operation mode: touch + button Product size: 454114MM Screen resolution: 240*240