Bluetooth mode - for android smartphones,it supports anti-lost, phone book, fundo (sports app), remote camera, sedentary remind, alarm clock, sleep monitor, calculator, pedometer, calendar, voice recorder, mp3, mp4, muti-timezone, muti-language, daylight saving time and notification push including facebook,twitter, email,calls,texts,etc. For iphone, it only supports music player, handsfree/making calls through bluetooth connection.
Phone function - if you place your sim card in your watch, you can make calls directly from your smartphone, including answering and dialing. If you do not have a sim card installed, you can connect your phone via bluetooth and then you can call, including answering and dialing. Support hands-free calls / receive or call from the wrist of android / ios. If you are using the bluetooth connection to synchronize your contact information, please note that you can see the caller on your watch