Garmin Varia™ RearVue 820

Varia™ RearVue 820 is the rearview radar and tail light that alerts you to approaching vehicles on your compatible Edge® cycling computer, Garmin smartwatch or Varia™ app on your smartphone. With our most powerful and precise radar tracking technology, it detects vehicle size and threat level with a wider field of view. The radar tracking technology identifies vehicles that are following cyclists at the same speed or attempting to pass (same-speed tracking is limited or may be unavailable at slower speeds or when the radar cannot detect the road because of weather conditions or obstructions). The tail light is visible from up to 2 km (1.24 miles) away and has a unique brake light flash pattern to alert other road users when you’re slowing down or stopping. For peace of mind and awareness on the longest of rides, get up to 24 hours of battery life in day flash mode and up to 30 hours of battery life in radar-only mode.

• Reliable rearview radar with our most powerful and precise radar tracking technology detects vehicles approaching from behind and gives audible and visual alerts on your compatible Edge® cycling computer, Garmin smartwatch or on the Varia™ app on your smartphone
• A bright tail light provides visibility from up to 2 km (1.24 miles) away to help you be more visible to motorists approaching from behind
• Get up to 24 hours of battery life in day flash mode and up to 30 hours in radar-only mode
• See visual alerts for small, medium and large vehicles approaching, and see the movement of a vehicle and its threat level — when riding with your compatible Edge® cycling computer or the Varia™ app on your smartphone
• Show other cyclists or motorists that you’re slowing or stopping with a brake light that displays a unique flash pattern
• Same-speed tracking means you can continue to stay alert to vehicles that are following behind at the same speed or attempting to pass (tracking may be unavailable at slower speeds or when radar is obstructed)