Water in the lens started with the V3 and continued forward on models since, it’s a design that allows the camera lens to fail just out of warranty. Designed failure so you keep replacing them and Wyze profits instead of fixing.
Stuck a V2 lens in a V3 that failed with lens moisture, and so far it’s lasted longer than most V3’s exposed to the elements.
Wyze sells garbage 
don’t listen to the Wyze defender tell you different, look at all the posts about water in lens