Samsung's Galaxy S8 and S8+ may well be the best, prettiest, most impressive phones in the world, but their fast charging support has a little problem.
Although the Sony Xperia X packs a Snapdragon 650 chip, and the X Performance is SD820-powered, the two stick to aging Quick Charge 2.0 guns.
Samsung's Galaxy S7 and Galaxy S7 edge devices running on Qualcomm's Snapdragon chipset will not have the latest fast-charging standard.
The next version of Qualcomm's charging standard - Quick Charge 3.0 - has been announced. Here's what you need to know about it.