The Sony QX10 is a hub lens part of its new range of android and iOS compatible lenses.
So how does the QX10 work with the iPhone 5S. Rather well actually. To connect it to the Sony QX10 takes a little longer in process than when using the Sony Xperia Z1 which uses NFC to create a one touch connection and also open the playmemories app. On the iPhone you need to go into wifi settings and select the lens wifi network and make sure connected. Then open the playmemories app on your iPhone. Everything then works perfectly the same as reviewed in my earlier article on the Qx10. Use the Review tab above to find the earlier review.
I actually wonder if Sony designed this more with the iPhone in mind.