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Fast charging can be a difficult topic to wrap your head around: there are a bunch of competing standards, all with different cables and power adapters. Qualcomm's Quick Charge 4 and 4+ allow charging at up to 100W, though few devices reach that. Both versions also allow you to use USB Power Delivery (USB-PD) chargers to reach speeds of up to 27W, so your phone or tablet will work with just about any fast charger.
There are quite a few quick charging standards in the wild, from USB-PD to Motorola TurboPower. Qualcomm's Quick Charge remains a popular option, used in devices like the Galaxy S8 and LG G6. While there aren't any devices on the market supporting QC 4, Qualcomm has announced QC 4+ with a few additional features over the already-new standard.
The march of chipset progress goes on: Qualcomm announced this morning that its new Snapdragon 835 chipset is on the way, utilizing Samsung's new 10 nanometer fabrication process, as well as the latest generation of its Quick Charge technology. Qualcomm did not share many details about its newest flagship processor, only claiming unspecified increases in speed, efficiency, and a reduction of physical space used by the chip (all at least partly a result of the switch from 14nm to 10nm). Qualcomm says Snapdragon 835 devices will be arriving on the market in the first half of 2017. Number of cores and other improvements were not disclosed - this appears to be a strictly preliminary announcement.