Meet the Zwim: smart swimming goggles with a heads-up display that shows your time, heart rate, laps, and other data, so you can keep a close eye on your performance during your swims. Zwim has an optical heart-rate sensor to monitor your performance. It also comes with a flexible arm and straps.
More gadgets like this: here
After your session, you can use the app to sync the data to your phone. Zwim will be compatible with iOS and Android devices. Its battery lasts up to 4 hours. This is like Google Glass for swimmers. You can find it here.
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