Most likely a good charger with four USB-C inputs will charge a single device just as fast as our picks, possibly even two devices. However, there's only so much power that can go through one of these devices. Four USB-C devices all charging at the same time aren't going to charge as fast as a single device on the same charger. They're also huge. Maybe I'm overly sensitive to this since I drive one of the smallest cars you can buy, and the last thing I want is a USB charger the size of my passenger seat taking up space. If you regularly charge that many devices, and you have the space to spare, they're worth considering. Some of the companies we looked at also make big multichargers, but not all.