As it has been a few months since the last iPhone release, the rumour mill is well and truly turning with regards to what Apple's next flagship handset will look like.

Many designers are turning their hands to developing 'concept pieces' and publishing them online to increase speculation and to see which ideas entice customers the most.

If you believe the rumour mill then the next iPhone handset could be sporting a curved display and finally showcasing Apple's massive investment into the world of sapphire glass.

Check out the video below to see artist Ran Avni's interpretation of what Apple's next handset could look like: