For drivers considering a head-up display (HUD) to enhance their driving experience, the Excelvan Obdii Car Gps Hud is often a popular choice. However, users who wear polarized sunglasses may encounter visibility issues with certain HUD models that reflect the display off the windshield. This article explores a practical alternative to the Excelvan HUD X5 for those who rely on polarized lenses while driving.
The common problem arises because polarized sunglasses are designed to reduce glare by filtering out horizontally polarized light. Many HUDs project their display onto the windshield, and this reflected image can be significantly diminished or even disappear when viewed through polarized sunglasses. One user tested this phenomenon by placing a smartphone screen-up on the dashboard and observing its reflection on the windshield. As anticipated, the screen reflection became invisible the moment polarized sunglasses were worn. This test effectively demonstrates the potential issue with reflective HUDs like the Excelvan HUD X5 for sunglass wearers.
Seeking a solution, an alternative device, the VJoyCar T812, was sourced from Amazon. This HUD offers dual-mode functionality, supporting both GPS and OBD2 connectivity. While initially intending to utilize the OBD2 connection for direct vehicle data, it was found to be incompatible with certain car models, in this case, a Volkswagen Golf. Consequently, the VJoyCar T812 was effectively used in GPS mode.
In GPS mode, the VJoyCar T812 proved to be a reliable and user-friendly alternative. The speed reading was easily calibrated to match a dedicated GPS unit, correcting a slight initial overestimation. The display is clear and responsive, quickly adapting to speed changes, and the GPS signal acquisition is rapid upon vehicle startup. Despite a few minor instances of erratic speed readings, the device has maintained consistent performance over a month of use.
To optimize viewing and minimize reflections, a simple yet effective mounting solution was devised. The VJoyCar T812 was mounted on a small hinge attached to an aluminum square, which was then secured to the dashboard with Velcro. This setup allows for easy removal of the device and adjustment of the screen angle to further reduce any potential reflections.
For individuals who wear polarized sunglasses and are looking for a functional HUD, particularly as an alternative to potentially problematic reflective models like the Excelvan HUD X5, the VJoyCar T812 in GPS mode presents a viable and effective solution. Its reliable performance, clear display, and adaptable mounting make it a worthwhile consideration.
