Do you need a protective housing?

Start with your camera's own number

The whole decision comes down to one comparison: how deep is your camera rated bare, and how deep are you actually going. The bare ratings across the cameras we cover are below, from each manufacturer's own page.

Snorkeling happens in the top five meters almost all of the time. Swimming is shallower. A capsized kayak puts a camera a meter or two under for a few seconds. Every camera in that table clears all of it with nothing fitted, and seven of the nine clear it with a wide margin.

The three cases where you genuinely need one

1. Scuba diving, or any dive past your bare rating. This is the real one. A recreational dive to 60ft is double the HERO13 Black's bare rating, and depth ratings are not advisory — a seal designed for 10m will leak at 20m. GoPro's own Protective Housing is rated 196ft (60m) with a flat glass front and fits the HERO13, 12, 11 and 10 Black. If a tank is involved, so is a housing. The ranked options are in cases and dive housings.

2. Impact, not water. This is the case people forget. A housing is a hard shell, and on a whitewater helmet, a rock-strewn mountain bike descent or a ski day in the trees, the thing most likely to end the camera is a collision rather than a leak. A $60 shell in front of a $400 camera is sensible insurance in those three places and nowhere else.

3. Harsh or very cold water. Heavily chlorinated pools, silty rivers and sub-freezing water are all harder on seals and buttons than a lake in July. A housing keeps all of it off the camera body, which over several seasons is a genuine extension of the camera's life. This is a slow, cumulative argument rather than an urgent one.

The four things a housing costs you

These are not theoretical. They are why fitting a housing "just to be safe" is usually the wrong call.

Audio, almost entirely. A sealed housing puts a plastic wall between the world and the microphones. What you get is muffled, boxy sound. On land this is a significant loss; underwater there was nothing worth recording anyway.

The touchscreen. You are back to physical buttons through the shell, which means setting up before you seal it and living with those settings. That is fine if you planned it and frustrating if you did not.

A second optical surface. Every housing adds a flat front element between the lens and the water: another thing to scratch, another thing to collect a droplet, another thing to keep clean. It also costs a small amount of optical quality. And a scratched housing front looks exactly like a scratched lens in the footage.

Fogging. The big one. A bare camera cannot fog on the outside of the lens in any way that a wipe does not fix. A sealed housing traps whatever air was inside it when you closed it, and when the housing cools in water the moisture in that air condenses on the inside of the front glass — where you cannot reach it. This is the most common complaint about housings and it is entirely avoidable, which is why anti-fog inserts are in our picks rather than as an afterthought.

The decision, as a short sequence

Are you going deeper than your camera's bare rating? If yes, buy the housing. There is no second opinion on this; water pressure does not negotiate.

Will the camera take a hard impact? Whitewater, rocky trail, tree skiing. If yes, a housing is reasonable insurance — and so is a replaceable lens cover, which the HERO13 Black has and which covers the most likely version of this for a lot less bulk.

Is the water chemically harsh or near freezing? If yes, a housing extends the camera's life, and the argument gets stronger the more seasons you expect to keep it.

Otherwise: no. Snorkeling, swimming, kayaking, paddle boarding, surfing, rain, a dropped camera at a dock. Shoot bare, keep the audio and the touchscreen, and spend the money on a float instead — which is the accessory that actually prevents the most common loss. See floats, tethers and not losing your camera.

Buy it wrong and it is worse than nothing

Three specific mistakes worth naming, because each one produces a housing that fails while looking fine.

The wrong generation. Housings fit specific bodies. GoPro's current Protective Housing lists HERO13, 12, 11 and 10 Black — a housing for an older body may close around a newer camera and still not seal properly, and it will not line up with the lens. Check the model list, not the brand.

A hair or a grain of sand in the seal. The single most common cause of a flooded camera inside a housing that was rated for the depth. Run a finger around the gasket every time, and do it somewhere that is not a beach.

Unbranded housings with a big number on the box. "60m" printed on packaging is not a rating, it is a claim. The housings we would use publish a depth, a model fit list and a material. If a listing cannot tell you which cameras it fits, it is not telling you anything about its seal either.

The alternative nobody mentions: buy a deeper camera

If the only reason you are considering a housing is depth, compare its cost against the gap between cameras. The DJI Osmo Action 5 Pro in our picks is rated to 20m bare — double the HERO13 Black — and the DJI Osmo Action 4 manages 18m. For anyone whose ceiling is free-diving rather than scuba, buying the depth into the camera means never carrying a housing, never losing the audio, never fitting an insert and never checking a gasket.

That is a real option and it is usually the better one for a lake-and-trail buyer. The full set of ratings is in the best waterproof action cameras, and what a depth rating actually promises is in how deep an action camera can actually go.