This was one of my concerns before buying the phone. So I directly compared my Epic 4g, the HTC EVO, and the S3 side by side in direct sunlight, and S3 was the least brightest screen among the 3, which almost made it a deal killer for me. Because everything else about the S3 scored high, compared to other phones, I decided to try it for the 14 day trial period anyway. With auto brightness and power save turned off, I can see the screen well enough in direct sunlight to do basic operations, but that's it, no reading fine print. In the finial analysis, after taking into consideration all the positives and negatives of the S3, compared to several other phones, I decided the S3 was a keeper.