If you have Prime and buy a lot of Kindle ebooks, the Paperwhite is the best choice because Amazon makes it incredibly easy to buy and read its stuff. But if those things don’t matter or apply to you, the Kobo Libra Colour will give you the best digital reading experience of all the e-readers on our list. Like the Kobo Libra Colour, it’s capable, for example, of solving math equations for you. There’s support for a wide range of file formats, but you can’t easily read Kindle books without converting them first. However, similar to the Kobo Libra Colour, this ad-free model offers physical-page turning buttons and supports note-taking.