Sony has released an Instagram extension app for the Smartwatch 2 that allows you to check Instagram notifications and comments without touching your phone. It isn’t a complete replacement for the app on your phone, but it’s a useful extension that will help you keep up on any notifications you’re getting. You can adjust how often the app syncs, and it alerts you with a soft vibration on your wrist. Pretty quiet and not intrusive.
The app is freely available in the Play Store, if you happen to own a Smartwatch 2.
source: Xperia Blog