Well, the Samsung Galaxy tab 2 is a tablet. (
http://en.wikipedia.org/wiki/Galaxy_Tab)
So it has a backlit screen like the Kindle Fire. For many people those types of screens are indeed hard on the eyes.
If you bought a Galaxy Tab, you would have to download an e-reader app to do your reading. (
https://wiki.mobileread.com/wiki/Android#Applications)
But if you are unfamiliar with this concept, your best bet would probably be the Kobo Touch since it is easier to use and I hear that the Kobo store has more choice for people outside the US and Canada.