OutdoorMaster Holoswim AR Smart Goggles

Excellent. I actually tested these goggles, or at least a near identical model sold under a different brand name, about a year ago while spending some time at my place in Thailand with a large pool right outside my door, though my wife almost immediately claimed them for herself and used them religiously every day during our six months there. They were fantastic, so when I was offered the chance to test this pair from OutdoorMaster I jumped at it. This pair is, as far as I can tell, identical to the first pair I tested, and both use the excellent Holosport app. While I'm only a casual swimmer it makes up the bulk of my cardio, and before trying these goggles I didn't have a reliable method of measuring calorie burn without doing lots of sums to figure it out. I don't have a Garmin watch so I can't get the best out of the goggles on open water, but for swimming in a regulation pool the googles are great for tracking laps and pace, and the accompanying app keeps an accurate record of my calorie burn. They're also just really good, well built goggles that keep my vision clear and stay in place no matter what I do. If you're serious about swimming, these goggles are a no brainer.