Garmin Varia RearVue 820

Strikingly Visible. Remarkably Powerful.

Varia Rear Vue 820 features our most powerful and precise radar yet with a wider field of view, giving you more reliable alerts than ever before. The taillight offers up to 2 km (1.24 miles) of visibility and has a brake light that shows when you’re slowing or stopping.

Key Features

• Tracks vehicles up to 175 meters (more than 190 yards) away with wider field of view
• Get up to 24 hours of battery life in day flash mode
• Bright taillight is visible up to 2 km (1.24 miles) away
• See the size of approaching vehicles
• Brake light alerts others that you’re slowing or stopping
• Stay alert to vehicles traveling at the same speed

Powerful and Reliable Radar
With our most powerful and precise radar tracking technology, Varia Rear Vue 820 radar detects vehicles approaching from up to 175 meters (more than 190 yards) away with a wider field of view.
Bright Taillight and Brake Light
Our brightest taillight means you’ll be visible from up to 2 km (1.24 miles) away. A brake light detects when you’re slowing or stopping and displays a unique flash pattern.
Advanced Vehicle Tracking
See alerts for small, medium and large vehicles, and see when a vehicle changes lanes, along with its threat level — when riding with the latest compatible edge® cycling computers or the varia™ app on your smartphone.
Get Alerts Your Way
For visual and audible alerts while you ride, connect this radar to the varia smartphone app, compatible edge cycling computers or Garmin smartwatches. In addition to haptic alerts on your wrist, select Garmin smartwatches can also give voice alerts for approaching vehicles — this feature is currently available in the Garmin public beta program for select smartwatches3.
Variety Of Light Pattern Options
Ride with four different light patterns: day flash, night flash, solid mode and peloton mode, which helps preserve the eyes of riders behind you. Create your own custom light patterns in the varia app on your smartphone.
Compact Design
A sleek, compact design and new seat post mount means Varia Rear Vue 820 fits cleanly onto almost any road or gravel bicycle and is compatible with the varia seat rail mount kit (sold separately).

ANT+® Yes (radar, bike lights)
Dimension: 98.9 x 25.9 x 43.2 mm (3.9” x 1” x 1.7")
Weight: 90 g (3.2 oz)
Light modes: Solid, peloton, night flash, day flash
Custom light mode configuration: Yes (with Varia Mobile App)
Lumens: 25 solid, 8 peloton, 40-night flash, 100-day flash
Water rating: IPX7
BLE: Yes (radar, bike lights)
Viewing angle: 220°
Visibility distance: 2 km
Vehicle threat classification: Speed, size- and lateral range-based
Maximum vehicle detection range: 175 m
Radar beam width: 60°

Battery life:
10 hours solid
15 hours peloton
10 hours night flash
24 hours day flash
30 hours radar-only

Varia Rear Vue 820 radar taillight
Mounting kit
Charging cable
Documentation