Sale has ended but you can still get this app.
Download Remote Settings Phone Now
Remote Settings Phone

Official Description

Now easy to setting phone from your Galaxy Watch.
For the application work fine, please enable all permission in picture description.
Feature settings support:
1. Wifi
2. Bluetooth
3. Sound mode (silent, sound, vibrate)
4. Rotate
5. Increase/decrease media volume.

Note: Please enable all permission for phone applications
Support for Samsung smart phone