Technology Review | A Heads-Up Display for Athletes.

If you’re a data junkie when it comes to your exercise, you’ve probably moved well beyond the finger-on-wrist technique for monitoring your heart rate. Cyclists, for instance, often like to measure heart rate, speed, cadence, and power all at once. The only problem is, if you’re on a bicycle, it’s hardly the safest thing to be peering down at a smart phone or wrist monitor to check on your progress.

A Canadian company, 4iiii Innovations, thinks it has the answer. It’s developed the first heads-up display for athletes, called Sportiiiis.