Today we’re taking a look at three of the most popular iPhone 4/4S battery cases, Incipio’s Offgrid Pro, mophie’s juice pack air, and xpal’s PowerSkin. All three cases have their own advantages and ...

I put the white iPhone 4S side-by-side with the iPhone 4 and saw no major issues. The general screen temperature on the 4S was warmer and ever-so-slightly more yellow compared to the bluer iPhone ...

My 4S screen is less contrasty, and the whites are more yellow (beyond “warm”) compared to my iPhone 4 screen,” writes another user. “The colors are less vibrant, and some are pretty ...

I have this case that I accidentally ordered two of. I didn't pay attention to my Amazon cart so when I got two of them I was kind of surprised. And then because it wasn't Amazon's error, they'd ...