Kindles are dedicated e-readers that also play audiobooks, featuring a paper-like screen designed to reduce eye strain. Models like the Kindle Paperwhite have larger screens (7-inch) and added features such as waterproofing and adjustable lighting, while the basic Kindle offers a more budget-friendly option with a 6-inch screen. Kindles typically have long battery life (up to six weeks) and are lightweight and portable. They can be used with Amazon’s Kindle Store or Kindle Unlimited, and some models are compatible with Audible.