Garmin has once again raised the bar for cycling safety with the official launch of the Varia RearVue 820. Following a string of recent high-profile releases, including the Quatix 8 Pro, this latest addition to the Varia lineup is being hailed as the company’s most sophisticated and powerful radar-integrated tail light to date. Designed to offer peace of mind on busy roads, the RearVue 820 combines ultra-bright visibility with long-range vehicle detection.
Unmatched Visibility and Intelligent Alert Systems

At the heart of the Varia RearVue 820 is a high-intensity light designed to keep cyclists visible even in challenging conditions. The device is capable of being spotted from up to 2 kilometers (1.24 miles) away, ensuring that drivers have ample time to react.
Beyond constant illumination, the 820 introduces a smart “deceleration” feature. The unit detects when a cyclist is slowing down or coming to a complete stop and automatically adjusts its flashing pattern. This unique visual cue serves as a proactive warning to both motorists and fellow riders approaching from behind.
Long-Range Radar and Ecosystem Integration
The standout feature of the Varia 820 is its advanced radar technology. The device can track multiple vehicles approaching from the rear at distances of up to 175 meters (approximately 190 yards).
To provide a seamless safety experience, the radar integrates directly with Garmin’s Edge ecosystem. Whether you are using a mid-range Edge 540 or the flagship Edge 1050, the RearVue 820 feeds real-time tracking data directly to your handlebar-mounted computer, giving you a digital “rear-view mirror” without needing to look over your shoulder.
Built for Endurance and Versatility
Garmin has engineered the Varia 820 to withstand the rigors of long-distance cycling. The device features an IPX7 waterproof rating, meaning it can handle heavy rain and splashes without issue. Battery life has also seen significant optimization:
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Day Flash Mode: Up to 24 hours of continuous use.
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Night Flash Mode: Up to 10 hours of use.
Furthermore, the 820 comes with a redesigned seatpost mount, ensuring a secure and aerodynamic fit on a wider variety of bike frames and tube shapes than previous models.
Pricing and Market Availability
Cyclists looking to upgrade their safety kit won’t have to wait long. The Garmin Varia RearVue 820 is scheduled to become available for order starting February 6. In the United States, the device will retail for $299.99, positioned as a premium safety investment for serious road enthusiasts and commuters alike.
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