Samsung's fourth iteration of its 'phablet' device
Keeps the screen at around the same 5.7-inch size as the last version but steps up its resolution, to a super '2K'. That gives it a pixel-per-inch score of well over 500, making it the best screen on the market. The stylus (or 'pen') can do more things, particularly dragging and dropping items, like a mouse. Samsung claims that the battery can now be charged to 50pc within 30 minutes, which will suit many business people needing a a top-up.