- Make sure to pair your phone with the wearable device with help of the Android Wear app.
- Check if you have an active bluetooth connection with your watch
It could take some time until a fresh installed app appears on watch. Wait 5 minutes.
You could also try the “App synchronisation” feature of the Android Wear companion app if nothing happens.
Use the Android Wear App Manager to get an notification when an app ist installed, updated or deleted on watch.