IP Rating (Ingress Protection, n.) A standardized two-digit code defined by IEC 60529 that describes how well a device resists solid particles and liquids. When a phone or camera is rated IP68, that number isn’t a marketing claim — it’s a specific test result with defined conditions.
How to Read the Rating
The first digit is dust protection, rated 0–6. A 6 means completely dustproof — no particles can enter. The second digit is water protection, rated 0–9K. The most common ratings on cameras and phones are IP67 (immersion up to 1 meter for 30 minutes) and IP68 (deeper or longer immersion, with specific conditions set by the manufacturer). IPX4, seen on some action cameras, means splash-resistant but not submersible — the X indicates the dust rating simply wasn’t tested, not that it failed.
Action cameras tend to be upfront with their numbers. GoPro HERO cameras are waterproof to 10 meters without a housing and say so directly. The Insta360 X4 carries IPX4 — fine for rain and splashes, not for underwater shooting. Read the actual rating rather than the marketing language around it; “water resistant” can mean almost anything depending on who’s writing the copy.
What the Rating Doesn’t Cover
IP ratings are tested in still, fresh water under controlled lab conditions. They say nothing about saltwater, chlorinated pools, high-pressure jets, or steam. Saltwater is corrosive — it attacks seals and connectors over time even on devices that pass freshwater tests comfortably. If you shoot at the beach or in a pool, rinse the camera thoroughly with fresh water after every session.
IP ratings also degrade with use. Seals age, charging port covers get worn down, and a single hard drop can compromise the gaskets that create the water barrier. A phone that was IP68 when new may not perform the same after two years and one cracked corner. This is why manufacturers typically don’t cover water damage under warranty — the rating describes new-device performance under test conditions, not lifetime protection in the real world.
