Consumer Reports ranked the Sony Smartwatch 3 bottom out of 11 smartwatches after it twice failed tests of its waterproofing claims. The well-respected non-profit carried out a rigorous set of lab tests on 11 competing watches, including the Apple Watch, Asus Zen, the LG G Watch R, Martian Notifier, Moto 360, Pebble Steel, Samsung Gear S and Sony Smartwatch 3.

The organization tested the watches for durability, water-resistance, health functionality, readability in bright and low light, ease of use, and ease of interaction …

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To test water-resistance, Consumer Reports uses a depth-test chamber that can be pressurized to simulate any depth up to 230 feet. The extreme capabilities weren’t needed here, as the claimed IPX7 standard of the Sony watch means it’s rated to withstand submersion in 3.3 feet of water for 30 minutes.

The Sony SmartWatch 3 was the only watch that did not pass our water-resistance test. Two consecutive samples did not function properly after being submerged for 30 minutes at 3.3 feet. Because of its poor performance in this test, the Sony fell to the bottom of our rankings.

The stainless steel version of the Apple Watch was declared the overall winner, passing all of the lab tests, with Consumer Reports completely unable to scratch its sapphire screen.

The organization didn’t reveal the rankings of other watches, being funded by subscriptions, but you can check out the video below. The Sony Smartwatch 3 went on sale in November of last year.

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