only thing I know from my daughter that you should look for one with a screen that eliminates glare especially if you like to read outside in the sun. DD is an avid reader and said that there is nothing like having a good book and taking it out to read and feeling the pages and holding it in anticipation of the next page. she tried kindle but went back to good ole fashioned books. she also like to read some 3 or 4 times more if they are good. Thus numerous book shelves filled up