You may have heard of 360° cameras—you know, those that can photograph all around you and make a picture look quite cool? The Nano S happens to be an external camera that connects to an iPhone and allows it to do just that. But what really makes things unique are its real-time stabilisation feature (which keeps the video eerily steady as you record), a nifty one-touch sharing feature, the ability to shoot 4K 360° photographs with ease, and MultiView, a mode that helps you record in the opposite direction without moving and without breaking continuity. Ships free to India. ($239;