Size5 x 7 x 0.3” (127.6 x 176.7 x 7.8 mm) Weight7.7oz (219g). Actual size and weight may vary by configuration and manufacturing process. System RequirementsNone; fully wireless and doesn't require a computer to download content. On-Device Storage32 GB; holds thousands of books. Cloud StorageFree cloud storage for all Amazon content. Battery LifeA single charge lasts up to eight (8) weeks, based on a half hour of reading per day with wireless off and the light setting at 13. Battery life may vary depending on use. Audible audiobook streaming over Bluetooth will reduce battery life. Charge TimeFully charges in less than 2.5 hours with a 9W USB power adapter. Wi-Fi ConnectivitySupports 2.4 GHz and 5.0 GHz networks with support for WEP, WPA, WPA2, WPA3 and OWE security using password authentication or Wi-Fi Protected Setup (WPS). Does not support connecting to ad-hoc (or peer-to-peer) wifi networks. Accessibility FeaturesVoiceView screen reader, available over Bluetooth audio, provides spoken feedback allowing you to navigate your device and read books with text-to-speech (available in English only). Learn more about Accessibility for Kindle. Content Formats SupportedKindle Format 8 (AZW3), Kindle (AZW), TXT, PDF, unprotected MOBI, PRC natively; PDF, DOCX, DOC, HTML, EPUB, TXT, RTF, JPEG, GIF, PNG, BMP through conversion; Audible audio format (AAX). Learn more about supported file types for personal documents. DocumentationLearn more about Kindle devices with our Quick Start Guide and Kindle User Guide. Warranty and Service1-year limited warranty and service included. Optional 1-year, 2-year or 3-year Extended Warranty available for U.S customers sold separately. Use of Kindle is subject to the terms found here.