Will this fast-charge an iPhone?

Yes. It supports USB Power Delivery at 20W, which is the rate recent iPhones use for fast charging. You need a USB-C to Lightning or USB-C cable, which is not included.

Does it charge Android phones quickly?

It lists Quick Charge 3.0 and USB-PD, so many Android phones will fast-charge. Phones that use their own proprietary fast-charge standard will fall back to slower charging.

Can it charge a tablet or laptop?

It will charge a tablet slowly and generally will not keep a laptop running. 20W is below what most laptops need.

What comes in the box?

The charger brick only. No cable is included, so you need a USB-C cable for your device.

The input range is 12-230V, so it handles most international voltages. You still need a plug adapter for the outlet shape.

Is it worth it over a name-brand charger?

At $6.88 it is one of the cheapest 20W PD chargers around. A name brand buys you a longer warranty and more consistent build, but for a spare brick this covers the basics.

Where is the Onn 20W Single USB-C Port Wall Charger cheapest?

At Walmart, for $6.88, as of our latest check.

Onn 20W Single USB-C Port Wall Charger

Best price now

$6.88at WalmartObserved at 3:33 PM

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Our take on the Onn 20W Single USB-C Port Wall Charger

The Onn 20W Single USB-C Wall Charger is a basic white wall adapter with one USB-C port, USB Power Delivery and Quick Charge 3.0 support, and a wide 12-230V input. It is the kind of low-cost brick you keep in a bag or plug in by the bed for a phone. At $6.88 at Walmart as of November 7, 2026, it sits at the low end of what a 20W PD charger costs.