Screen type : Capacitive Touch Screen Size:45.5*41.5*13.5mm Battery:300mAh Time/Alarm clock/Calculator/Calendar/Stopwatch/MP3/Sleep Monitor/Wap/ Radio/Recording/Camera/Video GPS : No Camera : 0.3MP CPU:MTK6261 Network: GSM850/900/1800/1900MHz OS Requirement: Android 4.3 OS TF card : Support to extend 16GB Case Material: Alloy Band Material: Silicone Watch Weight: 55g Support the GSM ( SIM Card GSM 850/900/1800/1900MHz,GPRS/EDGE ) calls, can also be a bluetooth communication; Synchronization, the phone book, SMS, instant messaging such as QQ, WeChat; Built-in 0.3 million pixels, support the recording, two-way lost; Support music (play, pause, up and down), remote camera phone (can be real-time push end used as camera picture); 3 sets of display clock, free switch;Click to follow switch; Support sedentary remind, pedometer, calories calculation, sleep monitoring function; 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. Brand Onlineshopgroup SKU ON440EL1MV6Z0NAFAMZ-214435 Compatible Operating System Not Specified Bluetooth Version Not Specified