WORKING AS AN ANDROID PHONE If you install an GSM 2G/2.5G Network SIM Card into the smart watch, you can make phone call directly from the smart watch, including answering and dial-up, send/reply messages.
WORKING AS AN SMART WATCH PHONE Just connect the smart watch with your phone via Bluetooth, then download and install the APP (BT Notification and Fun Run), so you can answer or receive call on watch, view and reply text messages. Other application Twitter, Facebook and Gmail you will get push notifications, music sync, remote camera control, the time and date will be automatically synchronized. (iPhone can not support apps and SMS.).
MULTIFUNCTION SMARTWATCH Fitness Tracker: Pedometer steps, distance, calories, sleep monitoring, sedentary remind. Other functions: Image viewer, Sound recorder need put and SD card, Remote capture, Alarm clock, Calendar, Calculator, Camera 0.3, Two way Anti-lost.
This smart watch can support most Android and iOS phones.