Smarthalo is like a head unit for commuters who don’t want to see clutter, or numbers for that matter. Working in conjunction with your smartphone, it will record speed, distance and elevation. Its circular set of lights indicate the direction you should turn, if you are using the navigation function. A headlight turns on and off automatically when you start and stop your rides. The unit locks to your stem to keep thieves from taking it. In fact, it also has a 100 db “bike alarm,” which should shoo any would-be crooks away.