Strap material: comfortable silicone strapBattery capacity: 400mAhCharging time: 2HDisplay resolution 128 * 128Camera: 8wOperating memory: 32MbZ6 touch screen bottom plug (2G + base station positioning + micro chat + call + forward camera + direct charging)Z6 touch screen side plug-in (2G + base station positioning + micro chat + call + forward photography + direct charging)501 touch screen bottom plug-in (2G + base station positioning + micro chat + call + direct charging),TZ6F touch screen strong water side plug-in - Purple (4G all China Netcom + GPS / base station / WiFi Positioning + video call)FZ6 touch screen strong waterproof side plug-in (2G + base station positioning + micro chat + call + front camera + magnetic charging)