Garmin Varia RearVue 820
Best safety device for cyclists seeking enhanced road awareness.
This radar-equipped tail light transforms road safety by acting as a digital rearview mirror. It tracks approaching vehicles and alerts you to their speed and distance, allowing you to maintain your line with confidence. It is an essential upgrade for anyone who trains on busy roads and wants to stay aware of their surroundings.
$29.99
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Who it's for
- Cyclists prioritizing safety and awareness on busy roads.
- Road cyclists and commuters seeking advanced warning of vehicles.
- Riders wanting to maximize their visibility and presence to motorists.
Who should skip it
- Budget-conscious cyclists or those new to advanced tech gear.
- Riders without existing Garmin devices or preferring standalone solutions.
- Cyclists who prefer absolute precision and minimal unnecessary notifications.
Performance breakdown
Radar detection range
Identifies approaching vehicles from up to 140 meters with pinpoint accuracy.
Daytime visibility
High-intensity flash patterns cut through direct sunlight to ensure driver awareness.
Battery longevity
Reliable power management handles long weekend rides without needing a mid-trip charge.
Mounting versatility
Secure quarter-turn system fits most seat posts but struggles with aero shapes.
Head unit integration
Seamlessly pairs with cycling computers for intuitive, real-time traffic alerts.
Weather resistance
IPX7 rating shrugs off heavy downpours and road spray with ease.
Key Specs
Weight
90 grams
Dimensions
98.9 x 25.9 x 43.2 mm
Brightness
100 lumens
Water Resistance
IPX7
Battery Life
30 hours
Detection Range
175 meters
Radar Beam Width
60 degrees
Connectivity
ANT+, Bluetooth
Charging
USB-C
Material
Plastic
What Reviewers Say
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