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    outside the labs

    Phones and Pools Don't Mix—Unless You Use One of the Waterproof Phone Cases We Dunk-Tested

    We submerged 7 phone cases and pouches, priced from $5 to $100, in CR's pressurized water tank

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    Bodyglove, Pelican, Joto, and Otterbox waterproof phone cases on blue background with waterdrops
    To find the best waterproof phone cases, we dunked models from companies including (from left) Body Glove, Pelican, Joto, and OtterBox.
    Photo: Consumer Reports

    Like most of us, I lug my phone everywhere. And in the dog days of summer, that includes some less-than-phone-friendly places, like my local public pool and a sandy, salty stretch of Brighton Beach in Brooklyn, N.Y. 

    These days, many smartphones can survive a dunking as long as you take some emergency steps, like quickly turning them off until they dry out. (Tip: Your phone’s IP rating will tell you how water-resistant your phone is designed to be.) But it’s still risky to expose an unprotected device to liquids. This is particularly true if you’re wading into salty ocean water or chlorinated pool water, which can leave behind residue that may corrode the metal in your phone.

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    If your phone is older and weathered, that’s a concern, too. “Drops and damage can cause small cracks, which allow water in,” says Rich Fisco, who oversees CR’s electronics testing. 

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    The best waterproof phone cases can offer peace of mind, potentially sparing you the hassle of replacing a waterlogged device. Certain models even let you swim with a phone to snap underwater photos, something you should never do without the added protection. 

    To find out just how effective today’s waterproof cases are, we evaluated seven popular versions—from manufacturers like Onn, OtterBox, and Pelican—plunging them inside CR’s pressurized dunk tank, which can reproduce the pressure experienced as far down as 203 feet. That’s overkill for phone cases, of course. To duplicate real-world conditions—like, say, a brief underwater video shoot or an accidental dip in a pool—we sealed a phone inside and submerged each case for 5 minutes at a pressure equivalent to a depth of 6 feet.

    We also placed three cobalt chloride test strips, which turn from blue to white when exposed to water, inside each case. Note that we didn’t evaluate the cases for extended submersion at deeper depths, so we can’t vouch for them while, say, scuba diving. 

    left image of hand holding Ghostek case with leak over water depth pressure chamber and right image showing water depth pressure chamber
    The test strips inside one case revealed a small leak during submersion in our dunk tank.

    Photo: Courtney Lindwall/Consumer Reports Photo: Courtney Lindwall/Consumer Reports

    In the end, the products we reviewed generally aced their most important job: They kept the phone inside dry. And that frees you up to focus on other factors when deciding which one to buy. 

    If you want something that looks and feels like an everyday phone case, consider a form-fitting option that lets you access the controls and touchscreen as usual. If you plan to use the case only when you’re going near the water, a plastic pouch can be cheaper, and it makes it easy to access your phone. It doesn’t have to be model-specific, either, so one pouch can accommodate family members with different phones. 

    I weighed a few other factors as well, like whether the case offers additional drop protection or wireless charging compatibility. Just how important those features are is up to you. 

    One final note: No matter which case or pouch you buy, we recommend first giving it a test run in your sink or tub with just a paper towel inside. That way, you’ll find out if it works before you risk sacrificing a pricey device.

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    We investigate, research, and test so you can choose with confidence.


    Courtney Lindwall

    Courtney Lindwall is a writer at Consumer Reports. Since joining CR in 2023, she’s covered the latest on cell phones, smartwatches, and fitness trackers as part of the tech team. Previously, Courtney reported on environmental and climate issues for the Natural Resources Defense Council. She lives in Brooklyn, N.Y.