The color e-paper screen really shines, thanks to the Kaleido 3 color e-paper display. The major selling points include a speaker and Bluetooth for listening to audiobooks, as well as various speed modes, and Google Play with Android 14. The Bigme B6 features a Kaleido 3 color e-paper display with a 6-inch screen. You can download and install any core Google apps, such as Google Books, Chrome, and Gmail. Android is the world’s most widely used OS, and people have their favourite reading apps, so I won’t list too many.