The Galaxy S6 and S6 Edge are a major design departure for Samsung, ditching its favoured plastic casing for metal and glass. We've put the new models next to their predecessors, to better examine how Samsung's design ethos has changed.
The S4 was a good-looking phone, but by this point, many onlookers were craving the premium feel of more luxurious materials than Samsung's preferred plastic.
Likewise, the peculiarly-textured back of the S5 didn't feel quite as posh as rival smartphones, which were deploying heady amounts of metal and glass in their construction.
This year however, that's all changed, because the S6 and S6 Edge, which has two curved sides, ditch the plastic in favour of metal and glass. The trade-off, however, is that the battery in these phones is no longer removable, but permanently sealed inside the phone.
The sides of the phone have seen perhaps the biggest shift. The S6 Edge has swooping, curved sides, while the S6's side is more rounded and less shear than its forebears.
It'll be interesting to see whether the phone-buying masses think a non-removable battery and no option to upgrade memory is a worthwhile trade for a more luxurious design.
Samsung has managed to maintain its position as a major smartphone maker, despite years of intense competition. However, the stakes are higher than ever.
