You should open the rear case to inset the micro SIM & SD card( Screwdriver included).Please don't take out the battery to avoid difficult assemblely.
Requirement for phone model and Bluetooth version
For Android phone, it supports Android version 4.2 or higher.For iPhone, it supports iOS 7.0 or higher.
It is cpmpatible with Bluetooth 4.0 or above.
Separately app download for Android an IOS Scan the QR code and download the app in your smart phone. For iPone users, you can download Fendong Wear in the Apple app store. Note 1:
The QR code is global used and applied to any scanner.If there is no scanner on your phone,please download one in the app store.
Touch Screen Size - 1.5 Inch
Micro SIM card (Frequency GSM/GPRS 850/900/1800/1900) (not included)
16GB SD card (not included)
1 X Bluetooth Smart Watch
1 X Magnetic Adapter Cable
1 X Screwdriver with 4 screws
1 X GT-88 User Manual