How do I install and delete apps?

1) Installing an app: With the watch and phone connected, in the Zepp app, go to Profile > Amazfit T-Rex 3 > App Store, select a new app to download and install or update an installed app to the latest version.

2) Deleting an app: Keep your watch connected to your phone. Open the Zepp app, go to Profile > Amazfit T-Rex 3 > App Store, tap Mine>More, tap Delete, select apps you want and then delete them.