I need to purchase a new 2021 Roku so that I can project either my Kindle or Libby app for reading books from my Android smartphone to a Roku. Reading from a smartphone causes me neck strain after an hour. Will screen mirroring, which can be activated in Settings, in a new 2021 Roku allow this to happen? If so, which Roku models might solve my problem? My present Roku 3710X - Roku Express+ does not have any screen mirroring capability.
If the Kindle or Libby book apps will not work with a new Roku, perhaps you could recommend another book reading app for my Android smartphone?