The display is a 6â€³ E-Ink display. The battery is good for 7500 page turns. Because the display requires power only when the image is changed, the slower you read, the longer the PRS-500 will last. PDF, TXT, RTF, RSS feeds and Microsoft Word files are supported. According to Engadget, who managed to play with Sonyâ€™s Reader, readability is very good and much better than LCDs.
According to E-Ink, white state reflectivity is 37%, contrast ratio is typically 8:1, viewing angles are 170-degrees, pixels are 2-bit generating 4 levels of gray, and image update times are 1000ms for grayscale mode and 500ms for 1-bit mode. Sounds pretty unimpressive compared to LCD TV specifications, but you have to realize that most of the time this display isnâ€™t doing anything and thatâ€™s what it was designed to do. For a 6â€³ display, the Sony PRS-500 has a pretty high resolution of 800 x 600.