Garmin Varia Rearvue 820 Radar Tail Light

GARMIN VARIA REARVUE 820 - ADVANCED REARVIEW BIKE RADAR & TAIL LIGHT


RIDE WITH GREATER AWARENESS AND VISIBILITY USING THE GARMIN VARIA REARVUE 820, A POWERFUL REAR-FACING RADAR AND BRIGHT TAIL LIGHT DESIGNED TO ALERT YOU TO APPROACHING VEHICLES.

The Garmin Varia RearVue 820 is Garmin's most advanced cycling radar and tail light, designed to significantly improve safety and awareness on the road. Using powerful rear-facing radar technology, it detects vehicles approaching from behind and sends alerts to compatible Garmin Edge cycling computers, smartwatches or the Garmin Varia smartphone app. This allows riders to stay focused on the road ahead while remaining aware of traffic approaching from behind.

With a detection range of up to 175 metres, the radar provides early warnings of vehicles approaching from behind. The system also introduces advanced vehicle tracking that can identify vehicle size and movement patterns, helping riders better understand traffic situations.


In addition to radar alerts, the Varia RearVue 820 features Garmin's brightest tail light yet, visible from up to 2 kilometres away to improve rider visibility in both daylight and low-light conditions. A built-in brake light automatically increases brightness when you slow down, helping drivers react sooner.

With multiple light modes, improved battery life and USB-C charging, the Varia RearVue 820 is a premium safety upgrade for road cyclists, commuters and endurance riders who want greater confidence when riding in traffic.


KEY FEATURES

Rear-Facing Radar Detection
Detects vehicles approaching from behind up to 175 metres away, giving riders earlier warnings and more time to react.

Advanced Vehicle Tracking
Identifies vehicle size and movement patterns, helping riders better understand traffic approaching from behind.

Bright High-Visibility Tail Light
Garmin's brightest Varia tail light yet, visible from up to 2 kilometres to help ensure motorists see you clearly on the road.

Integrated Brake Light
Automatically increases brightness and changes flash pattern when deceleration is detected, alerting vehicles behind you.

Multiple Light Modes
Includes solid, night flash, day flash and peloton mode to optimise visibility in different riding conditions.

Extended Battery Life
Up to 24 hours of battery life in day flash mode or up to 30 hours in radar-only mode for long training rides.

Wide Device Compatibility
Works with compatible Garmin Edge cycling computers, select Garmin smartwatches and the Garmin Varia smartphone app.

USB-C Charging
Modern USB-C charging provides faster and more convenient power management.


WHY TO CHOOSE

The Garmin Varia RearVue 820 is one of the most effective cycling safety upgrades available. By combining powerful rear-view radar with a bright tail light, it provides both awareness and visibility - two key factors for safer road riding.
Unlike standard bike lights, the Varia system actively monitors traffic behind you and delivers real-time alerts directly to your cycling computer or phone. This reduces the need to constantly look over your shoulder and allows you to ride more confidently on busy roads.
With improved radar accuracy, brighter lighting and significantly longer battery life than previous models, the RearVue 820 represents the next generation of cycling radar technology.


PERFECT FOR

Road cyclists riding in traffic
Commuters wanting increased safety and visibility
Endurance riders training on open roads
Cyclists using Garmin Edge bike computers
Anyone wanting greater awareness of approaching vehicles


SPECIFICATIONS
Brand: Garmin
Model: Varia RearVue 820
Part Number: 010-03180-00
Device Type: Rearview radar with tail light
Radar Detection Range: Up to 175 metres
Tail Light Visibility: Up to 2 kilometres
Connectivity: ANT+ and Bluetooth
Compatibility: Garmin Edge cycling computers, Garmin smartwatches, Garmin Varia smartphone app
Light Modes: Solid, night flash, day flash, peloton mode
Brake Light: Yes, automatic deceleration detection
Battery Life: Up to 24 hours (day flash), up to 30 hours (radar only)
Charging: USB-C rechargeable battery
Water Rating: IPX7
Weight: Approximately 91 grams
Mounting: Seatpost mount (round, aero and D-shaped posts)