What is the difference between Kindle™ wifi and Kindle™ wifi with Special Offers?

Price. Obviously:). But beyond that, Kindle™ Wifi with special offers is supported by advertisement on the screensaver and at the bottom of the homepage. Thanks to the advertisement, one can now get a cheaper product. Beyond that there is no difference between the two.  Note that the advertisements won’t degrade your reading experience. Amazon is smart enough not to overdo advertisement at the expense of the reader’s enjoyment, don’t worry.

What is the difference between Kindle™ wifi+case and Kindle™ wifi with Special Offers+case?

Price. Obviously:). But beyond that, Kindle Wifi with special offers+case is supported by advertisement on the screensaver and at the bottom of the homepage. Thanks to the advertisement, one can now get a cheaper product. Beyond that there is no difference between the two.  Note that the advertisements won’t degrade your reading experience. Amazon is smart enough not to overdo advertisement at the expense of the reader’s enjoyment, don’t worry.

Also note that, for these two products, you will get a case.