Sony's attachable camera is better than others?

After Nokia's deadly release Lumia 1020 with 41 Megapixels and pure view and Samsung's S4 zoom Sony is coming with their new idea i.e attachable camera rumour's say that  this one can be attached with any handset majorly an iPhone too.

In my views this idea is really great and better than carrying a heavy phone always for great camera like Pure view.This camera will attach to your phone with a thing like magnet and can be synced with your phone through bluetooth or an app.


From BGR"It appears that these lenses are already being used in existing cameras made by Sony like the RX-100 II and the WX150. Notably, the DSC-QX100 lens is already being used on the RX100 II and features a 20.2-megapixel sensor, a f/1.8 aperture and 3.6x optical zoom. The DSC-QX10 is a cheaper solution from the WX150 and has a 18-megapixel CMOS sensor and an f/3.5-3.9 lens.

Both lenses have a dedicated power button, microphone, display panel for battery and SD card, a tripod mount, a dedicated shutter button, a multifunctional jack, and a zoom lever. The DSC-QX100 also has ring controls".