I have seen those reviews as well. It functions just like any color screen in the sunlight. I had the M8, and that screen was dim in the sunlight. My wife has the S4 and she can't see anything in the sunlight. The G3's is on par with both of those. I haven't noticed any worse. I did use it yesterday in the sun and was able to see my screen just fine. Do I want to watch a video in the sun? Nope. Can I make calls in the sun? Sure.