In his latest review, DesFit takes a detailed look at the new Garmin Varia RearVue 820, Garmin’s newest cycling radar and tail light that packs advanced tracking, a bright 100-lumen rear light, and brake light functionality into a single device. Released in February 2026 with a suggested retail price around $299.99 in the U.S., it represents a significant upgrade from Garmin’s earlier Garmin Varia RTL515 Radar Tail Light, which typically retailed closer to $199–$200 when new. Des breaks down what these price and feature jumps mean in practice, especially for riders weighing the value of enhanced safety tech and long battery life.






