Phone Android System Support sync Message and Bluetooth notification and other APK function. Phone I
Time / Date / Week / Battery state display. Answer or Dial calls from your wrist.
Ringing reminder when you receive a call. Ringing reminder once your mobile phone disconnected.
Android System can support all function in the description
BUT Iphone IOS only support:Passometer,Calendar,Call Sync,Calculator,Clock,Stopwatch.