I have one of each. The Kindle Fire is for internet browsing, video watching and Alexa when I'm away from home. I also have a paperwhite in a waterproof case for reading. There is no glare on the paperwhite (well, a little from the case, but if you've bought the newer one which is waterproof that eliminates even that) so it can be easily read in sunlight. You can connect both to wifi and have your books on both which will automatically update to the last place read on the other device if you find yourself going back and forth between the two of them which is nice.