The world's thinnest tablet: Apple launches 0.2inch thick iPad Air 2 and retina iMac - and reveals you'll be able to use your iPhone as a credit card from Monday

Apple has unveiled a new ultrathin version of its iPad Air which the firm claims is the world's thinnest tablet at 6.1mm.

It also revealed its Apple Pay system to turn the iPhone 6 into a credit card will launch on Monday.

The firm also unveiled a new iMac with the worlds highest resolution screen, and announced a new version of its Mac OS software, called Yosemite, will be made available for free today.