The Sony Cyber-short QX10 is here to fill a need you had no idea needed filled. It mates the improved pictures of a good point-and-shoot camera with your smartphone. Rather than build a phone with a high-powered camera like the Galaxy S4 Zoom, the QX10 is a stand-alone unit that works with any Android smartphone. (Or the iPhone, if that's how you roll.)Using wireless (NFC and WIfi Direct) the QX10 pairs with your phone (or tablet if you're into that) and the device's screen becomes the live-view from the lens.
It can be a little clunky, and there's some software between the two that allow it to happen. Often-times finicky software. To the point where it's almost easier to forgo the software and shoot blind, unconnected to a phone. Yes, it can do that, too.
Source: androidcentral http://www.androidcentral.com/sony-dsc-qx10-lens-style-camera-review