Tbh, I just can't imagine a smartwatch screen protector would be able to stand the test of time though. Cheap and easy? Sure, but I'd expect you'd have to replace it many times over the years.
I would just take it to a local shop and have them wrap it in clear paint protection film. Have them do the head/fog lights and windshield while they're at it too.
I would just take it to a local shop and have them wrap it in clear paint protection film. Have them do the head/fog lights and windshield while they're at it too.