Review on 🚗 Universal Wireless Car HUD Head Up Display: Speedometer MPH, Solar/Battery/USB Charged, Time Clock, Speed Alarm, Fatigue Driving Alert, Temperature & Altitude by Tommy Hilmy

I like the overall design of the unit. Its speedometer function seems to be accurate enough. temperature too. The height is not great. Never gets the same value twice in a row while stationary. The biggest problem is the display. In bright sunlight, the screen dims due to low brightness. I plan to make a small visor to protect the display. Hope this solves the problem. Making the display brighter should be easy enough. I suspect they lowered the brightness to save battery life. I would also like a compass function instead of or in addition to the altitude/temperature display. With GPS this should be easy to do. This first iteration is good, but with a little development it could become an awsum product.