If you want to delete all of your call history on your Apple Watch, there are a few different ways to go about it. The first way is to open the Watch app on your iPhone and tap on the three lines in the top left corner. From here, you can select Settings and then General. Under History, you’ll see a list of all of the calls that have been made or received on your watch. Tap on one of these entries and then choose Delete from the menu that appears. If you want to delete specific call histories, you can do so by opening the Watch app on your iPhone and tapping on the three lines in the top left corner. From here, you can select Settings and then General. Under History, you’ll see a list of all of the calls that have been made or received on your watch. Tap on one of these entries and then choose Edit from the menu that appears. Next, under Call Details, tap on Call History. This will open a list of all of the call history entries for that particular call. You can now select which ones you want to delete by tapping on them and choosing Delete from the menu that appears. Finally, if you want to permanently delete all of your call history from your Apple Watch, you can do so by resetting it back to its factory settings. This will erase everything including any call histories that may have been saved since it was last reset. To do this, open the Watch app on your iPhone and tap on General at the bottom of the screen. From here, tap Reset All Settings at the top of this screen and follow instructions accordingly ..