What is a HUD Speedometer?
A Heads-Up Display (HUD) mirrors the speedometer reading vertically so that when placed on your dashboard beneath the front windshield, the reflection displays right-side-up in your line of sight, keeping your eyes on the road during night driving.
How to Use Online HUD Mode
1. Open OnlineSpeedMeter.com on your mobile browser.
2. Tap the HUD toggle button to mirror the digital display.
3. Place your phone flat on the dashboard directly beneath the windshield.