Compared to the PRS-505, Here’s what’s New with the PRS-700BC

6.0-inch Interactive Touch Screen Display – same size as the PRS-505, but with interactive touch screen that allows you to turn pages by sliding your finger across the screen, activate bookmark, create annotations with a virtual keyboard, highlight text with a stylus pen, search for text, adjust the font size between 5 levels - (PRS-505) has no touch screen and only 3 font levels.

Faster Processor, quicker response times when opening content or turning pages.

Holds about 350 digital books in RAM – PRS 505 holds 160.

Built-in LED reading light gives you the ability to read in the dark – PRS 505 had none.

Make annotations virtual keyboard. Highlight text with a stylus pen or touch of your finger. search for text with the virtual keyboard or by highlighting text – PRS-505 has no virtual keyboard or touch screen.

search, browse, discover, and buy new releases, classics, and popular digital book titles from The eBook Store and participating Websites. DRM Free eBooks in file formats supported by the Reader – same with PRS-505.

eBook Library 2.5 PC Software. transfer Adobe® PDF documents , Microsoft® Word documents, BBeB® format, and other text file formats to the Reader – PRS 505 uses 2.0 PC Software.

supports EPUB/ADEPT and connection with Adobe Digital Editions. You can even play back unsecured MP3s and AAC audio files – PRS 505 does not support EPUB/ADEPT.

Dimensions approximately 127.6 x 174.3 x 9.7 mm -smaller than PRS-505 (123.6 mm x 175.6 mm x 13.8 mm)

DRM Text : BBeB Book (Marlin), ePub – No ePub for PRS-505

Image : JPEG, GIF, PNG, and BMP -Same for PRS-505

Unsecured Audio : MP3 and AAC- Same

Unsecured Text : BBeB, ePub, TXT, RTF, Adobe® PDF, Microsoft® Word – PRS 505 no ePub.