[M_Six]

The new Garmin Varia tail/radar is brighter and pretty sensitive. I have both the old one and the new one. The new one will pick up a rider or riders coming up behind you, but not until they're close. It'll pick up cars a good ways off. If you do a lot of group rides or ride in heavy traffic, the newest one might drive you nuts with alerts. Personally I like it better, but I usually ride alone and traffic here is light.