You don't tell us what country you're in - that's important!
If PDF support is important, assuming you want a 6" device (a screen the same size as the Kindle's screen) I'd suggest either the Sony or the CyBook. They do, however, approach it in different ways - the Sony will "reflow" the PDF to fit its page size (better for straight text); the CyBook will let you "pan" over the full-sized page (better for complex technical layouts, etc).
All the devices support bookmarking. The Kindle (only available in the US - hence my question about where you live!) supports searching; the Kindle and CyBook support dictionary lookup, but the Sony doesn't. The Kindle doesn't support PDF.
ie:
Kindle: No PDF, but has searching, dictionary lookup.
CyBook: PDF, dictionary, no searching.
Sony: PDF, no dictionary, no searching
All the devices mount as USB drives and support SD cards (although, to be honest, that's of limited relevance - the internal memory of all is sufficient for several hundred typical books).
|