Samsung wants to make an Android tablet for everyone, which is why they have four screen sizes: 7.0″, 7.7″, 8.9″, and 10.1″. For many, their 7.0″ and 7.7″ tablets provide an excellent level of portability while also giving you plenty of screen to warrant a great tablet experience. The Galaxy Tab 7.7, in particular, is a special tablet because it’s the only Samsung tablet to utilize their Super AMOLED Plus panel.
via Samsung Galaxy Tab 7.7 WiFi Review.