Garmin Varia RearVue 820

The Varia RearVue 820 is a cycling safety device that combines a rearview vehicle-detection radar with a high-visibility tail light, designed to enhance rider safety.

The built-in radar detects vehicles approaching from behind and provides visual and audible alerts through compatible Garmin cycling computers or display devices, allowing riders to stay aware of traffic conditions in real time. When vehicles approach, the system displays their distance and relative position to help riders react early.

The tail light automatically adjusts its brightness based on approaching vehicles, increasing visibility to drivers and improving safety during both daytime and nighttime rides.