Combined Shape Bike IQ

Radar Settings

Radar Settings configure how the Garmin Varia radar widget appears and behaves on your ride screen, including its position, visual style, refresh rate, and audio alerts.

Radar widget settings — position, animated lane, refresh rate, and audio alerts

Widget Position

The radar widget can be placed at the top, leading (left), or trailing (right) edge of the ride screen. Choose the position that fits your ride layout and does not overlap with metrics you check frequently.

Most riders place the radar on the trailing edge so it sits alongside their speed and power data without competing for attention. If you use a minimal ride layout with fewer widgets, the top position gives the radar more vertical space to show vehicle distances.

Animated Lane

The Animated Lane adds scrolling road markings to the radar widget that move in the direction of vehicle approach. This visual effect makes it immediately obvious when a vehicle is closing in —the lane markers accelerate as the vehicle gets closer.

The animation provides a peripheral vision cue. Even without reading the exact distance, you can sense the urgency from the speed of the scrolling. Disable animated lane if you find the motion distracting or prefer a cleaner, static display.

Refresh Rate

Refresh rate controls how frequently the radar widget updates, from 1 Hz to 30 Hz. A higher refresh rate shows smoother vehicle movement and reacts faster to new threats. A lower refresh rate uses less battery.

For most riding, 5-10 Hz is a good balance. You see vehicles approaching in near real-time without draining your battery on rapid UI updates. Push it to 30 Hz if you want the smoothest possible animation and battery life is not a concern. Drop to 1-2 Hz on long endurance rides where you want maximum battery conservation and occasional radar checks are sufficient.

Audio Alerts

When enabled, Audio Alerts play a sound when the radar detects an approaching vehicle. This is the radar's most safety-critical feature —you hear a vehicle behind you before you see or feel it.

Audio alerts are especially valuable on roads without bike lanes, on descents where wind noise drowns out engine sounds, and anytime you are wearing headphones. The alert gives you time to hold your line, signal, or move over.

Alert Threshold

The Alert Threshold controls when audio alerts trigger based on threat level: low, medium, or high. A low threshold alerts you earlier when vehicles are farther away, giving you maximum warning time. A high threshold only alerts for close, fast-approaching vehicles, reducing alert frequency on busy roads.

On quiet rural roads, a low threshold makes sense —every approaching vehicle is worth knowing about. On busy urban roads where cars pass constantly, a high threshold prevents alert fatigue and only sounds for vehicles that are genuinely close.

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