For pretty much any endurance-oriented sport, athletes like to be able to reach a target hear rate when they’re training. Typically, this is done using a sensor integrated into a chest strap, that’s linked to a sports watch, smartphone, or even to a heads-up display in a set of glasses. While there are sports watches designed for swimmers, users have to stop swimming in order to read them. With the Instabeat, however, swimmers get the heads-up option in the form of colored LEDs that are projected through the bottom of their goggles.
Read the full article: Instabeat shows swimmers their heart rate – in their goggles