ompact and lightweight e-book reader; responsive touch - screen interface with no glare or contrast issues; high - contrast E Ink Pearl display; zippier performance than its predecessor; integration with Sony e-book store; good battery life (up to two weeks); supports EPUB e-book standard, which allows for e-book downloads from libraries; audio playback; SD and Memory Stick Duo memory expansion slots. (goodereader.com)
Sony says the internal memory can hold up to 1,000 standard e-books, with memory expansion slots available for additional capacity. (pcworld.com)
The internal memory is only 256 MB, compared to Kindle's 2 GB, but it has two memory expansion slots for SD, SDHC, and Memory Stick Pro cards, which makes the Reader capable of holding thousands of books. (the-ebook-reader.com)