Welcome to MR, jakobbokaj
I have the Sony 505 and love it. I was lucky my son chose a device that was perfect for me.
The
E-book Reader Matrix in MR's Wiki is a good comparison chart that has links to the individual devices.
Some things to consider before buying a device..
*Geographic restrictions when purchasing ebooks. ........Where you live determines which ebook stores are available to you and not all ebooks are available to be purchased in all countries.. (I know, I know .... but this information will be for non techies)
*Right now you may be able to view the Kindle, Sony, B&N, etc book stores, but once you are registered geographic restrictions will apply (I know... please see note above)
*Why do you want wifi? Consider if you will be able to use it in your country and that it is usually only for download of books.
*Prices of ebooks in other countries may be more than the USD prices on the same sites. Prices seem to be set by publishers who own the rights to the ebooks in the various counties.
*Calibre does conversion of formats when you start with a non DRM'd ebook. (most books you buy from the major book stores or the best sellers are DRM'd)
*members have discussed buying and converting DRM's ebooks but this involves stripping DRM (which may or may not be legal in your country--and MR doesn't give step by step instructions) This also involves some knowledge of scripts.
So, I would say the first step is to search for the type of books you like to read. Are they available as ebooks? what format are they available in? are they available in your geographic area? at a price you would like to pay?
Good Luck in your decision making process. Choosing a device to fit your individual needs will ensure that you enjoy your new device.