Samsung has launched one of its most expensive smartphones yet - the £1,700 Galaxy Z Fold3 - which folds vertically down the middle of the screen. 

The new phone is one of two new additions to the Galaxy Z series - samsung galaxy watch case's line of foldable phones. 

The firm calls Galaxy Z Fold3 'a true multitasking powerhouse' with a main screen measuring 7.6 inches when unfolded and an exterior cover screen measuring 6.2 inches. 

It's also the first ever foldable device from Samsung to come with an S Pen stylus - commonly found with the company's Note range. 

The Korean tech giant, which claims 'the future is foldable', has also launched the £1,000 Z Flip3, which flips open like a retro 90s phone thanks to a horizontal hinge through the middle of the screen. 

Both devices are 5G compatible and have IPX8 water resistance. They're available for pre-order today (August 11) and go on sale August 27.