Product Details

Description
The Varia RearVue 820 is Garmin's most advanced cycling rearview radar and tail light. More powerful and precise than any previous Varia, it detects vehicles approaching from up to 175 meters away with a wider field of view. Advanced vehicle tracking identifies vehicle size and threat level, and alerts you when a vehicle is changing lanes. The tail light is visible up to 2km away, with a distinctive brake light pattern that activates when you slow or stop.
Features
Specifications
• Radar: Detects approaching vehicles up to 175 meters (190+ yards) — wider field of view vs previous models
• Vehicle tracking: Identifies small, medium, and large vehicles; detects lane changes; shows threat level
• Tail light: Visible up to 2 km (1.24 miles); 100 lumen max
• Brake light: Unique flash pattern activates automatically when slowing or stopping
• Battery: 10 hrs solid; 15 hrs peloton; 10 hrs night flash; 24 hrs day flash; 30 hrs radar-only
• Charging: USB-C
• Compatibility: Compatible Edge cycling computers, select Garmin smartwatches, or Varia smartphone app
• Dimensions: 98.9 x 25.9 x 43.2mm
• Mount: Compact seatpost mount; compatible with Varia seat rail mount kit (sold separately)
Item Number



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