If you are an avid smartphone photographer and have a tripod, this is THE must have accessory. It allows you to attached your smart phone to a standard tripod shoe.
If you don’t have a tripod you can pick up a cheap one for around £10 that will do the trick like the Konig Traveller Camera Camcorder Tripod (see: http://www.amazon.co.uk/gp/product/B0017PEBZW/ref=as_li_tl?ie=UTF8&camp=1634&creative=19450&creativeASIN=B0017PEBZW&linkCode=as2&tag=masudahmekhan-21&linkId=PNKE5T4ZNQHTZPB3 )
The item is spring-loaded and will stretch to fit most smartphone sizes. I am using it with and iPhone 6 with a case and there is still a little more stretch in it. It also fits my old iPhone 4.