dial diameter: 1.54 inches
outline dimension: 43.5*40*9.8mm
watch strap length: 22cm
fitness and health: (exercise program, track record) sleep quality monitoring.
Call function:  (dial, hands-free, phone records, phone book)-support whatsapp.* tools: calculator, alarm  clock, calendar.
photo: (watch camera, watch control mobile phone camera)
Entertainment: (mp3/mp4 local player, Bluetooth music player)
3 kind of display clock, free switching.
electricity can be used for about 3 days.
Language: English,Spanish,Portuguese,French.
Package:
1*smart watch
1*battery
1*manual
1*charger line
Note！！！
After insert 2G network and connect with your phone,the 
Facebook,Whatsapp ,Twitter,can received the message.but couldn't chat through the watch.and since it is the 2G network,the Browser couldn't be used.