The color version takes a lot more light. You'll need the back light on any time it's not in direct sunlight. The color is also pretty muted. All in all, it's

The color version takes a lot more light. You'll need the back light on any time it's not in direct sunlight. The color is also pretty muted. All in all, it's worth buying if you need an ereader and want to use the color features, but I wouldn't recommend buying it if you already have the black and white version.