OnePlus explains the 7's lack of a water resistance rating
 

Don't expect OnePlus to slap water and dust resistance ratings on its phones any time soon. Co-founder Carl Pei has posted the company's rationale for declining to get an IP rating. The company wanted to do things based on "what you really need" rath...

https://www.engadget.com/2019/05/04/...er-resistance/