Color: black and black, silver, gold and black, gold and red screen size: 1.54 Camera: 2 megapixel communication function: support for cross-border source: is screen resolution: 240 x 240pixel time: 20190529 version type: European Interface: USB 3.0 strap size: S/M (for 130-180 mm wrist circumference) after-sales service: store front three packs additional features: information push, motion tracking, smart alerts, mobile positioning, sleep analysis, pcounting, social entertainment , remote-controlled self-timer menu language: English communication type: sim card screen material: IPS packaging list: machine , instruction s / charging line , small packaging wireless distance: 10m and above suitable crowd: business, adults, elderly, fashion , Mass body memory: 64M-32M Battery capacity: 380mAH Operation: Touch-and-key wristband material: silicone product size: 58 x 39 x 12.5 mm compatible system: android platform compatible platform: ANDROID iOS wearing: wristband applicable platform: android platform strap style: classic buckle