We're just some folks with repair on our minds...
I recommend removing the screen, getting the new Display Connectors Sticker Set (IF334-009-1 for my 38mm version), and cleaning the housing. Made it much easier to clean and apply the touch force gasket.
Pictures are the GPS version. Cellular doesn’t have the gap and separate removable plate on the “taptic engine” section.
Verify your model. The back of the Cellular model just says GPS, so be sure to check the groves where the watch band goes to determine you model. I made the mistake of just reading the back of the device and since I’d been gifted the device didn’t know it was cellular. Cellular has a different type of touch force gasket, different screen, and different battery connections.