Default [Q] HTC One M7 and Sony Smartwatch 2

Hi guys and gals!

I have a problem with syncing my htc one and sony smartwatch 2, particularly on applications. The phone and the watch syncs via bluetooth but not all apps are installed on the watch, like call handling, messaging, calendar. The only apps that appear on the watch are the alarm clock, flashlight, calculator, timer and stopwatch.

Any idea what I'm doing wrong?

Thanks in advance for the help!