Apple Watch Series 3
watchOS 4
1. Find app
On your phone: Press Watch.
On your phone: Press Search.
On your phone: Press the search field.
On your phone: Key in the name or subject of the required app and press Search.
On your phone: Press the required app.
2. Install app
On your phone: Press GET and follow the instructions on the screen to install the app.
If you've selected a paid app, press the price to install the app.