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The Android torque app has an option to reverse the display on your smartphone or tablet so it functions as HUD when set on the dash. Even with a bright display, on a top end phone, its hard to see in daylight. The bigger problem is the laminate layer in the safety glass. It produces a second/ghost image which I find to be annoying. I don't know if that would be a deal breaker for you, or if the AM HUD guys offer a solution, but you might want to question the HUD manufacturer about the issue if you think it might be a problem. Vehicles with factory HUD have special treatments in the display areas of the windshield to improve image quality.