The Inkcase Plus is a secondary screen for your Android smartphone. It pairs up to your device using Bluetooth and once you install the e-reading app, it functions as a mini e-reader.
This device features a 3.5 inch, 360 x 600 pixel e-Ink display which is visible in direct sunlight. The low-power screen also only uses electricity when you refresh the page, so it should get up to 10 to 15 days of battery life.
There are a number of apps available for the Inkcase Plus, such as a photo gallery, sports and picture app. My personal favorite is the e-reader app, you can simply load in your own e-Pub books and turn it into a dedicated 3.5 inch digital reader.

Michael Kozlowski is the Editor in Chief of Good e-Reader. He has been writing about audiobooks and e-readers for the past ten years. His articles have been picked up by major and local news sources and websites such as the CBC, CNET, Engadget, Huffington Post and the New York Times.