I have two GPS’es. An older Garmin and a 3 YO Tom Tom. Neither has a display that is bright enough for me to read on a top down sunny day ride. If any of you has one that might work, I’d appreciate the info. …and NO, I do not have a smart phone – it’s dumber than a rock. Thanks!
I haven’t used a GPS in a long time, but I do have some of those commercial shades such as those in the Amazon link. They work well enough, unless the sun is at your back and directly on the screen. I partially solved the problem in my Honda S2000 but using a mounting bracket near the top of the transmission tunnel.