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Picture this: You're swimming laps while a virtual coach silently helps perfect your technique and provides real-time feedback. Small yellow digits glow softly in front of your eyes, displaying your ...

No matter how you go about it, water sports are fairly personalized. Although we all follow the same general guidelines, everyone’s technique and stroke is different; however, one of the most ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. These smart goggles will ...