As a triathlete or cyclist, it's important to feel light and fast on the bike. The weight of the Recon Jet, especially at its position on the bottom of the lens, will make you feel weighted down and heavy--which isn't good for racing.
As a training tool, there are some good uses for the Recon Jet, and we especially liked the map functions and the automatic upload capability to MapMyRide and Strava.
Overall, the sunglasses feel like a technology that's going to see big improvements in the near future. As for now, you'll probably only be tempted to purchase these if you're a tech junkie or if you're looking for a lot of help with pacing your efforts during training.
As for the price, it's pretty reasonable considering Google Glass costs a cool $1,500.
Reconinstruments.com, $499
Rating: 5/10