Garmin Varia RearVue 820 Radar Tail Light
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Varia™ RearVue 820
Strikingly Visible. Remarkably Powerful.
Varia RearVue 820 features our most powerful and precise radar yet with a wider field of view, giving you more reliable alerts than ever before. The tail light offers up to 2 km (1.24 miles) of visibility and has a brake light that shows when you're slowing or stopping.
2km Visibility
175m Radar Range
24hr Battery
Brake Light Alert
The Headlines
- Tracks vehicles up to 175 meters (190 yards) away with wider field of view
- Bright tail light visible up to 2 km (1.24 miles) away
- Brake light alerts others when you're slowing or stopping
- See the size of approaching vehicles — small, medium, or large
- Up to 24 hours of battery life in day flash mode
How It Works
Connect to the Varia smartphone app, compatible Edge® cycling computers, or Garmin smartwatches for visual and audible alerts while you ride. Select Garmin smartwatches provide haptic and voice alerts for approaching vehicles.
Light Modes
- Day Flash — 24hr battery, maximum daytime visibility
- Night Flash — alert fellow riders after dark
- Solid Mode — constant tail light
- Peloton Mode — lower intensity, preserves night vision of riders behind you
- Custom patterns — create your own in the Varia app
Smart Detection
- Shows vehicle size (small, medium, large) and lane changes with threat level
- Alerts for vehicles traveling at the same speed as you
- Seatpost mount included; compatible with Varia seat rail mount kit (sold separately)
- Sleek, compact design fits most road and gravel bicycles
Specifications
PART NUMBER
010-03180-00
DETECTION RANGE
Up to 175 meters (190 yards)
TAIL LIGHT VISIBILITY
Up to 2 km (1.24 miles)
BATTERY LIFE
Up to 24 hours (day flash mode)
LIGHT MODES
Day Flash, Night Flash, Solid, Peloton, Custom
BRAKE LIGHT
Yes — activates when slowing or stopping
MOUNTING
Seatpost mount included; compatible with Varia seat rail mount kit
CONNECTIVITY
Varia app, Edge® cycling computers, Garmin smartwatches
Shipping Policy
Components:
All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 1–4 business days of purchase.
Bicycles:
Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.
Riding Gear & Apparel:
Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 1–3 business days.
Returns & Exchanges:
If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.
For full details, please see our Refund Policy before initiating a return.
