This is the Apple Watch, announced by CEO Tim Cook at a media event in the company's home town of Cupertino, California this week.
Available in two sizes - 38mm and 42mm - the Apple Watch comes in three different styles (Watch, Watch Sport and Watch Edition) and with a range of leather, rubber and metal straps.
The Watch will go on sale in "early 2015" and is priced from $349 in the US; UK prices have yet to be announced.
Running an entirely new operating system, the Apple Watch has a touch screen, but can also be interacted with by voice commands and with the crown, which can be tapped and turned to interact with the watch. For example, a twist zooms in and out in the maps application.