Have an Otterbox defender for a while now. Phone survived a trip into the loo even though it isn’t a full waterproof case. Still looks like new under the case. Been dropped several times too and case is looking good too.
Lifeproof here too. I have one of the originals and it is still holding up well. I have a fair few underwater pics too. Should see the poolside reactions. Just buy from Lifeproof. Great customer support, and guaranteed to be genuine.