High Sensitive Capacitive Touch Screen;Perfect Match Technology,1.54" TFT  LCD; Resolution Ratio: 240x240 Pixel Phone Function: Can Be As A Standalone Mobile Phone To Make Phone Calls Including Answering And Dial-Up. Supports Single SIM Card (Micro SIM Card), 2G GSM/GPRS 850/900/1800/1900 Sync Function: Whatsapp,Twitter,Facebook,Browser(Require SIM Card Which Is Available For Internet); Schedule,Read Text Message;Pedometer,Sedentary Remind Other Functions: Image Viewer, Sound Recorder ( A  Card Is Required ), Audio Player, Remote Capture, Alarm Clock, Calendar, Calculator, Camera,Two-Way Anti-Lost Two Working Mode:One Is Company Mode(bt), It Enable To Make Call Or Receive Call, Send Or Get Message Etc Via BT. The Other Funchion Is Network Mode( With Sim Card Inserted). It Enable To Make And Answer Calls,Send Or Get Message Via The SIM Card Which Means The Watch Works As A Standalone Cellphone iPhone Limited Functionality: you can pick up calls, see the phone number, and listen to your music, besides all other watch functions like alarms, lost alarm etc. However it will not sync with your phone book so if you get a phone call the number shows up but not the persons name, you can pick up and answer but it's not synching with your iphones software. Other functions that work on android may also not work on your particular iphone model