After having three Kindles I moved to Kobo, and it was much, much better in the compatibility side of things. Now I am using a PocketBook and it is also great.

After having three Kindles I moved to Kobo, and it was much, much better in the compatibility side of things. Now I am using a PocketBook and it is also great. The synchronization feature between browser, phone and the reader is very good, it is reason enough to have it instead of a Kindle.