Garmin Varia Rearview Radar review: bike light that shows when cars get close

Detecting cars from 140m, the light brightens when cars approach and shows their position on a handlebar-mounted display - which gets quite distracting

The Garmin Varia Rearview Radar is a smart rear bike light that aims to improve your visibility, situational awareness and safety with adaptive brightness and a radar display.

It's a rear bike light with built-in radar, which tells you when a car is approaching by showing the vehicle's position on a handlebar-mounted display. It detects cars from up to 140m away and can track up to eight separate vehicles at once.