Garmin Varia RearVue 820 – Advanced Rear Radar & Smart Tail Light for Cyclists
Ride with greater confidence and awareness using the Garmin Varia RearVue 820, an advanced rear-facing radar and smart tail light designed to significantly improve cycling safety on the road. Ideal for commuters, road cyclists and performance riders, the RearVue 820 combines powerful vehicle detection, intelligent alerts and Garmin’s brightest rear light to date, helping you stay seen and informed in all riding conditions.
Advanced Rear Radar for Enhanced Awareness
The Garmin Varia RearVue 820 features a highly advanced rear-facing radar capable of detecting approaching vehicles from up to 175 metres away. This early warning system gives cyclists valuable time to react to traffic behind them, especially on busy roads or high-speed sections.
Enhanced vehicle tracking provides more detailed alerts by identifying vehicle size and speed, allowing you to quickly understand the potential level of risk. The system can also recognise vehicles maintaining the same speed or changing lanes, offering improved situational awareness compared to previous generations.
Alerts are delivered clearly and intuitively when paired with compatible Garmin Edge cycling computers, the Varia smartphone app, or supported Garmin smartwatches, using visual, audible and vibration notifications.
Brightest Garmin Tail Light with Integrated Brake Light
Visibility is a key focus of the Varia RearVue 820. It features Garmin’s brightest rear bike light, visible from up to 2 kilometres away in daylight conditions. Multiple lighting modes allow you to adapt your visibility to your environment, including day flash, night flash, solid and peloton modes.
The built-in brake light function automatically detects when you slow down and increases light intensity, clearly signalling deceleration to drivers and riders behind you. This added layer of communication enhances safety in traffic, group rides and urban riding scenarios.
Long Battery Life for Everyday and Long-Distance Riding
Designed for reliability on both short commutes and long endurance rides, the Garmin Varia RearVue 820 offers excellent battery performance:
Charging is quick and convenient via USB-C, and the updated seatpost mount ensures a secure and streamlined fit on a wide range of bikes, including road, gravel and commuter setups.
Seamless Connectivity and Garmin Ecosystem Integration
The RearVue 820 uses ANT+® and Bluetooth connectivity to integrate smoothly with Garmin’s cycling ecosystem and compatible third-party devices. Whether you prefer alerts displayed on your head unit, delivered through your smartphone, or felt via a smartwatch vibration, the system adapts to your preferred riding setup.
Key Features
Rear-facing radar with up to 175 m vehicle detection range
Enhanced vehicle tracking with size and speed awareness
Bright tail light visible from up to 2 km
Intelligent brake light for deceleration alerts
Multiple light modes including peloton mode
Long battery life: up to 24 hours (day flash) or 30 hours (radar only)
USB-C charging for modern convenience
Compatible with Garmin Edge devices, Varia app and smartwatches
Secure and adjustable seatpost mount
Summary
The Garmin Varia RearVue 820 is a premium cycling safety solution that combines intelligent rear radar technology with exceptional visibility and smart alert features. By providing early warnings of approaching vehicles and keeping you clearly visible on the road, it helps reduce stress and increase confidence on every ride. With long battery life, seamless device compatibility and advanced safety features, the RearVue 820 is an essential upgrade for cyclists who take road awareness and visibility seriously.