Is Asus Zenfone 8 water resistant?

Yes, Asus Zenfone 8 is water resistant, It has an IP68 rating.

It can handle dust, dirt, sand and rain. Zenfone 8 can handle being submerged underwater for a depth of 1.5 meters for half an hour. While it is resistant to water and dust but the damages may not be covered in the warranty.