Kobo’s new e-book reader has a 7.8″ 1872 x 1404 screen yet weighs just half a pound. It’s also waterproof and has an adjustable night mode that reduces blue light. It also has Wi-Fi, 8GB of storage and a battery that lasts up to a month per charge.
The Sony DPT-S1 Digital Paper is a thin and light 13.3″ e-ink reader that lets you view and annotate A4 (8.5″x11″) documents in full size. It only supports PDF files for now though. Also it costs over $1,000. Japanese demo here.