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Phone Water Ratings Explained: More Than Just a Number
19 Nov, 2025
Summary
- IP ratings indicate protection from solids and liquids.
- IP68 is not a universal standard for water submersion depth.
- IP ratings tested in still, fresh water; avoid pool/ocean.

Modern smartphones often boast water resistance, a vital feature differentiating them from mere paperweights. Ingress Protection (IP) ratings, such as IP67 and IP68, offer insight into a device's defense against solid objects like dust and liquid entry. The first digit denotes solid protection, while the second indicates liquid resistance, with higher numbers signifying better protection.
However, the meaning of these ratings can be misleading. While an IP68 rating guarantees survival in at least 1 meter of water for 30 minutes, manufacturers define specific limits. For instance, one phone might be rated for 1.5 meters, another for 6 meters, highlighting the need to check fine print. Furthermore, IP tests are conducted in still, fresh water, making submersion in chlorinated pools or corrosive saltwater highly inadvisable.
Even with top-tier IP ratings, it's best to view water resistance as an emergency backup, not an invitation for aquatic adventures. Phones are not designed for swimming or underwater photography. Accidental spills or calls in the rain are the intended scenarios for this feature. Devices without official IP ratings may offer some protection through seals or coatings but should still be kept away from significant liquid exposure.