1.The watch Only support 2G network SIM card [GSM/GPRS 850/900/1800/1900]
2.There is no APK for iPhone. so four functions can't sync with iphone(1. Anti-lost. 2. Messaging. 3. Notifier. 4. Remote Camera). but all other function can use normally because no need to use app.
3.Android Phone can support all function in the description.
4.We have 2 kinds of system of watch interface. but the all function is same.we will sent by random. the pictures is just a Reference.