Complex sentence: It is a 20.3 Megapixel mirrorless interchangeable lens camera using the Samsung NX mount, with the appearance, viewfinder magnification and sensor size of a prosumer DSLR, yet competing on weight and size with the Sony NEX, Nikon 1 and Micro Four Thirds series of cameras.
Split into simpler sentences: It is a 20.3 Megapixel mirrorless interchangeable lens camera using the Samsung NX mount. The NX20 possesses the appearance, viewfinder magnification and sensor size of a prosumer DSLR, but is comparable in weight and size with cameras such as the Sony NEX, Nikon 1 and the Micro Four Thirds series of cameras.