A stunning update on the ‘old-school’ clamshell concept, Samsung’s Galaxy Z Flip uses a foldable display to create an inventive, impressive and practical smartphone. When it is open, a 6.7in Dynamic AMOLED screen, with 1,080 x 2,636 resolution, takes centre-stage – and with no noticeable fold in the middle. Closed, it becomes half the size and protects the main screen from damage, while displaying notifications, incoming calls and further information on a secondary 1.1in display. The Galaxy Z Flip’s considerable appeal is boosted by its double camera setup with wide and ultrawide lenses, long-lasting 3,300mAh battery, and robust and convincing finish. This is a pioneering smartphone.