Android Wear App not installed

Question

we release our first Wearable Application today but sadly this one isn\'t get installed automatically as it should.

We double checked the APK and the wearable apk is

Answer 1

This is going to sound like such a basic and silly answer. But when I did my tests, I forgot that in Android Studios where you click on the play button to run your app, you can change it from mobile to wear. I was only ever installing the mobile app and not the wear app on the wear device.

Hope this helps someone.