We’ve all seen bike computers, heart-rate monitors, and so on, the sort of things athletes or just data-loving runners and cyclists track during their activities. The trouble is that they’re rarely easy to consult: you have to take your eyes off the road to check your speed, or interrupt your run cadence to check your heart rate. The 4iiii Sport-iiii system (pronounced sport eyes, apparently) solves this problem by suspending a little bar in your peripheral vision and indicating key metrics with LEDs.
Heads-Up Display For Athletes
Reviewed by blognews