Lost connection, removed and water poured out, who said they are waterproof
Not the manufacturer. They say it is “weather resistant“ and the installation instructions tell you to place it in a sheltered location, which is where most doorbells are in the US. Although not all.
If it is going to get drenched, they recommend adding a little cover over it, typically looks sort of like a birdhouse.
Ring states that it is resistant to rain water, but it isn’t waterproof. This means that if you submerged your Ring under water, it would be damaged and no longer work.