Get Rid of the iPhone Apps on Your Watch
On the other hand, you might want to uninstall apps that you originally used on your iPhone. After all, not every app will work on your Apple Watch the same way it works on your iPhone.
To get rid of your Apple Watch apps from your iPhone, you need to open the Watch app and then scroll down until you see the Installed on Apple Watch section, which lists all the third-party apps that have been installed on your Apple Watch.
To remove an app, select it and then toggle the switch off beside Show App on Apple Watch and then choose the name of your Apple Watch in the top-left corner to return to the previous screen. The app will be uninstalled from your Apple Watch. However, it will remain on your iPhone. If you change your mind later and want to put it back, you can find it further down on that same screen under Available Apps.
To remove an app directly on your Apple Watch, you’ll need to press the Digital Crown to access your Home Screen. From there, press and hold your screen until the apps start to jiggle. Tap the x icon in the top left side of the app and then tap on Delete App to confirm your decision.