To date nobody is sure if the Apple iWatch (if that's what it's to be called) even exists or in development, never mind hazarding a guess at what it would look like.

That has stopped many people from speculating and conceptual artist Martin Hajek has come up with what many are regarding as the best speculative images around to date.

This is not the first time that Hajek has speculated on what a future Apple product would look like as he previously produced very accurate renditions of what the iPhone 5c would look like before release.

His current designs are based on the latest iPhone models available, the 'iWatch C' boasts the bold colours of the 5c and is plastic, while the 'iWatch S' has a leather strap and is made of similar material to the 5s.

These are of course speculative, so don't be surprised if the actual 'iWatch' looks nothing like Hajek's images.

Do you like the look of these 'iWatch' models? Tell us your thoughts below