Garmin unveils brightest Varia RearVue 820 with wider radar and smarter vehicle tracking
Garmin has unveiled the Varia RearVue 820, the brand’s brightest rear radar bike light to date, delivering up to 2km visibility and a 60° radar view with detection out to 175m. It includes advanced vehicle tracking that assesses vehicle size and lateral movement, categorizes threat levels, and supports Same Speed Tracking with smartwatch voice alerts. The unit can function as a brake light, offers customizable patterns via the Varia app, and displays radar data on compatible bike computers. It connects by USB-C and comes with a new seatpost mount, with four light modes (Solid, Peloton, Night Flash, Day Flash) plus a radar-only option. Battery life ranges from 10 hours (Solid) to 24 hours (Day Flash), and up to 30 hours in radar-only mode. Price is £259.99 / $299.99 / €299.99.
