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.
General
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
ANT+®
Yes (radar, bike lights)
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
Yes