Kindle Touch Wi-Fi Amazon Kindle Touch 6-inch Multi-touch eBook Reader General Features: Gray color Lightweight and thin design E Ink Technology 16-level grayscale 6-inch multi-touch display 600 x 800 pixel resolution (167 ppi) USB 2.0 interface (micro-B connector) Integrated IEEE 802.11b/g/n (Wi-Fi) wireless 4 GB internal storage (3 GB accessible) Stores up to 3,000 books