Garmin Varia RearVue 820 StVZO Rear Radar Bike Light Black

The Garmin Varia RCT720 StVZO Rear Radar and Light is a bicycle rear light with integrated radar for monitoring vehicles approaching from behind. The radar detects traffic at distances of up to 175 m, giving the rider advance notice of approaching vehicles. Its rechargeable battery supports up to 30 hours of operation, a useful runtime for commuting, long rides, and touring. An IPX7 rating means the unit is water-resistant against rain and temporary immersion. This combination puts rear-traffic awareness and rider visibility into one accessory rather than separate devices.

The unit weighs 90 g, limiting the extra mass added to the bicycle. At 43.2 × 98.9 × 25.9 mm, its low-profile form keeps the rear-mounted package relatively compact. A mounting kit is supplied for fitting the device to the bike, with the included clamp providing the hardware needed to secure it in place. Compatibility covers Garmin Edge cycling computers, Garmin smartwatches, and smartphones running the Varia app, allowing alerts to be viewed across these device types.

• 1,820 mAh battery capacity
• ANT+ connectivity for supported cycling equipment
• Bluetooth connectivity for wireless data transfer
• USB charging port for cable-based recharging
• 220° horizontal viewing angle for broad rear visibility
• 5 lm rear light output
• Visible from up to 350 m
• Black exterior finish