The 12W Apple adapter is only about 20 minutes behind. The USB-C chargers get you just over 50 percent in half an hour, and fully charge the phone in just under two hours. The iPhone X story is essentially identical to the iPhone 8 Plus. The USB-C chargers are maybe 20 to 25 percent faster. But the big news here is that the 12W Apple adapter, which requires no new and expensive cable, gets most of the way there. It’s clear that the newer phone is negotiating proper speeds with the USB-C chargers via the USB-PD standard, and that they all deliver as much power as the phone can handle. But the USB-C adapters, including the Pixel’s, all perform the same and are a bit faster. The iPhone 8 Plus charges at the same speed as the 7 Plus when using the 12W iPad adapter. The Pixel adapter is considerably faster than the included charger, but slower than Apple’s 12W iPad adapter or any of its other USB-C adapters. That’s an hour faster than the in-box charger. The 12W charger and all of the Apple USB-C chargers deliver nearly identical performance, charging the phone to 85 percent in about an hour and 20 minutes. With the included 5W adapter, the phone takes almost 3.5 hours to fully charge. The iPhone 7 Plus, which has no official support for USB-C fast charging, delivers some interesting results.

Let’s take a closer look at how each phone performs when charged up with each of these five power adapters. That sound you hear is your wallet crying. Apple sells those for a whopping $19 for a 1-meter cable, or $35 for a 2-meter cable. But no matter what USB-C power adapter you use, you’re going to need a USB-C Lightning cable. Here’s one for $25 (we haven’t tested it). Any USB-C adapter that supports USB Power Delivery should work just fine. You can, of course, buy less expensive USB-C adapters than Apple’s.

Usb for iphone 6