Garmin Varia RearVue 820 - 2026
Garmin
$299.99
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Garmin
Garmin Varia RearVue 820 - 2026
Radar Tail Light with Advanced Vehicle Tracking
Garmin Varia™ RearVue 820
Ride with more awareness and confidence. Varia RearVue 820 combines Garmin’s most powerful rear radar with a bright tail light, brake light alerts, wider radar coverage and advanced vehicle tracking for road and gravel riders.
Up to 175 m Vehicle detection range
Up to 2 km Tail light visibility
Up to 24 hours Day flash battery life
IPX7 Weather-ready water rating
Why Cyclists Like It
Powerful Rear Radar
Detects vehicles approaching from up to 175 meters away with a 60-degree radar beam width and wider field of view than previous Varia radar tail lights.
Advanced Vehicle Tracking
When paired with compatible Garmin Edge devices or the Varia app, RearVue 820 can show vehicle size, lateral vehicle positioning and threat classification.
Bright, Smart Visibility
The tail light is visible up to 1.24 miles away, includes a brake light alert and offers solid, peloton, night flash and day flash light modes.
Key Features
- Rear radar detects approaching vehicles from up to 175 meters, with same-speed tracking support under suitable conditions
- Advanced vehicle tracking can show vehicle size, lane movement and speed-, size- and lateral range-based threat level
- Bright rear tail light offers up to 100 lumens in day flash mode and visibility up to 2 km (1.24 miles)
- Brake light alert displays a unique flash pattern when slowing or stopping
- Pairs with the Varia smartphone app, compatible Edge cycling computers and compatible Garmin smartwatches for visual, audible and haptic alerts
- Custom light mode configuration available through the Varia mobile app
Specs at a Glance
| Part Number | 010-03180-00 |
|---|---|
| Dimensions | 3.9" x 1.0" x 1.7" (98.9 x 25.9 x 43.2 mm) |
| Weight | 3.2 oz (90 g) |
| Light Modes | Solid, peloton, night flash, day flash |
| Lumens | 25 solid, 8 peloton, 40 night flash, 100 day flash |
| Battery Life | 10 hours solid; 15 hours peloton; 10 hours night flash; 24 hours day flash; 30 hours radar-only |
| Water Rating | IPX7 |
| Connectivity | ANT+® and BLE for radar and bike lights |
| Radar Specs | 175 m maximum vehicle detection range; 60° radar beam width; lateral vehicle positioning; vehicle size classification |
| Visibility | 220° viewing angle; 1.24 mi (2 km) visibility distance |
In the Box
Varia RearVue 820 radar tail light, mounting kit, charging cable and documentation
Note: Advanced vehicle tracking features require compatible Garmin devices or the Varia app. Same-speed tracking may be limited or unavailable at slower speeds or when radar cannot clearly detect the road. Battery life varies by light mode, settings and usage.
