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.

ANT+®	Yes (radar, bike lights)
Dimension	98.9 x 25.9 x 43.2 mm (3.9” x 1” x 1.7")
Weight	90 g (3.2 oz)
Light modes	Solid, peloton, night flash, day flash
Custom light mode configuration	Yes (with Varia Mobile App)
Radar-only mode	Yes
Lumens	25 solid, 8 peloton, 40 night flash, 100 day flash
Water rating	IPX7
Battery life	10 hours solid 15 hours peloton 10 hours night flash 24 hours day flash 30 hours radar-only
BLE	Yes (radar, bike lights)
Viewing angle	220°
Visibility distance	2 km
Rear tail light	Yes
Brake light	Yes
Rear radar	Yes
Lateral vehicle positioning	Yes
Vehicle size classification	Yes
Vehicle threat classification	Speed-, size- and lateral range-based
Maximum vehicle detection range	175 m
Radar beam width	60°

Connectivity
Varia™ app compatibility