The Librie has a 800x600 E-Ink display. The CPU is a ARM9 (V5) derivative.

Specification:

• 6in reflective electronic paper display with E-Ink technology (2bit grayscale)
• SVGA (600x800 dots) resolution at 170dpi
• 300g with case and batteries (190g without)
• 126mm x 190mm x 13mm
• ARM-based Motorola/Freescale DragonBall MC9328MX1 processor (ARM920T core, 200MHz, 98.09 BogoMIPS)
• 64MB SDRAM system memory (62500KB free)
• 4MB NOR flash memory (containing Linux bootloader, kernel, Memory Stick BIOS, keys and device informations)
• 32MB NAND flash memory Samsung KM29U256T (containing fonts, dictionaries and bookshelf data, 11152KB free)
• 16MB NAND flash memory Samsung KM29U128T (containing rootfs and OpenMG data)
• Sony Linux OS: NSC Linux version 1.2.0 Patch 4.2 (MontaVista distribution)
• Memory Stick slot (Memory Stick Pro compatible, up to 2GB)
• USB 2.0 port
• Headphone jack
• Rear-mounted mono speaker
• internal UART-0 and UART-1 (root console is running via UART-1)
• 4xAAA batteries, ~10.000 pageturns
• Miniature Qwerty keyboard
• Memory function that can place up to 40 bookmarks

The Librie has many Buttons, some are only labeled in Japanese.