As of 2015, some Amazon Kindle models include the seventh-generation original Kindle, Kindle Paperwhite and Kindle Voyage. Other models include the Kindle Fire HD, Fire HDX and Fire HD Kids Edition.
All Kindle models have built-in Wi-Fi connectivity and high-resolution displays. The Paperwhite model offers a paper-like display and a battery that can go for weeks on a single charge. The Kindle Fire HD series models come with 6- or 7-inch screens, front-facing cameras and quad-core processors. The Kindle Fire HD Kids Edition comes with a kid-proof case and parental controls. The Kindle Fire HDX features a full-color, 8.9-inch screen, front- and rear-facing cameras and a 12-hour mixed-use battery life. A 4G capable model is also available.