The Nikon 1 S1 is a Nikon 1 series low-cost high-speedmirrorless interchangeable-lens camera launched by Nikon. Nikon lists the estimated selling price of the Nikon 1 S1 One-Lens Kit in the United States at $499.95. This kit comes with the 1 NIKKOR VR 11-27.5mm f/3.5-5.6 lens. It features many similarities with the 1 J2, like the same 10.1 megapixel CX-format CMOS sensor and autofocus, but with an upgraded EXPEED 3A processor.
It is the predecessor of Nikon 1 S2 which the newer is a low-cost version of Nikon 1 J4, so has only 14.2MP sensor with less autofocusing points and no touch screen and WiFi, but still has 20fps burst mode as Nikon 1 J4.