- Suitable to charge your device like AirPods, iPhone, iPad, even Apple Watch.
- Charge iPhone 12 and previous iPhone models up to 3× faster than with an original 5W Charger.
- At 50% smaller than a standard 20W iPhone charger, Anker Nano provides more power while saving space in your bag or while plugged into a wall outlet.
- Works with Most Handheld Devices: Provide up to 20W charging to most flagship phones including iPhone and Samsung Galaxy S20 as well as smartwatches and earbuds.
Anker PowerPort 3 Nano 20W Review. Until recently, when you bought your iPhone, it came with a charger and a charging cable so you can charge it right away, but with the release of the iPhone 12/12 Pro, all iPhones are no longer equipped with chargers as I did.
It’s true that if you change your iPhone every year you don’t need a charger, but for those who change models only occasionally, “Why don’t you have a charger? You can’t charge it.”
Under those circumstances, Anker has released a compact and lightweight power adapter that can charge 20W quickly.
Here, we review the design, size, charging speed, etc. from Anker PowerPort 3 Nano 20W, so recommended for those who buy a new iPhone but don’t have a charger.
Anker PowerPort 3 Nano 20W Review Features
Features highlight of Anker PowerPort 3 Nano 20W:
- Power adapter with maximum 20W output
- Equipped with one USB-C port
- Body size: 44 x 27 x 27 mm
- Bodyweight: 30g
- Terminal price: USD 17
The Anker PowerPort 3 Nano 20W is an ultra-compact power adapter with one USB-C port. You can charge all your iPhones with a USB-C to Lightning cable.
You can also charge an iPad Pro 11 inch / 12.9 inch or iPad Air 4 with a USB-C to C cable. Of course, it can also be used as a power adapter for Android smartphones.
Since this is a power adapter with a maximum output of 20W, you can quickly charge the terminals of smartphones and tablets such as the iPhone which supports fast charging.
Anker PowerPort 3 Nano 20W Review
Small body size
The body size of the Anker PowerPort 3 Nano 20W including the plug part is (44 x 27 x 27mm), which is much smaller.
It weighs only 30g, making it an easy-to-carry power adapter. Compared to the size of a 100 coin, it looks like this.
This size compares to Apple’s original power adapter and Apple’s 20W USB-C power adapter. It’s amazing that the same 20W output power adapter fits into such a small size, right?
You can’t fold the plug, but this size doesn’t hurt to carry around.

Since this is a compact power adapter, it feels comfortable without being a bother even when used alongside a power strip.
The power adapter next to it is the Apple 30W USB-C power adapter that came with the MacBook Air, but this size is too innovative as it only has 30W and 20W output.
Quickly charges with an output of 20W
The Anker PowerPort 3 Nano 20W is a power adapter that can quickly charge your device with a maximum output of 20W.
Anker PowerPort 3 Nano 20W output
- 5V × 3A = 15W
- 9V × 2.22A = 20W
I measured how much of the output was actually charged using the iPhone 12 Pro and iPhone SE (2nd generation) with a battery level of around 50%.

The iPhone 12 Pro can charge around 15W, and the iPhone SE (2nd generation) can charge around 12W. The output changes depending on the battery level, but it seems that the battery is charged with sufficient output.
The actual charging time performance
Now, let’s see how long it takes to charge the iPhone 12 using an actual Anker PowerPort 3 Nano 20W. Criterias PowerPort 3 Nano 20W Performance 30 minutes 0% → 55% (55% increase) 60 minutes 55% → 79% (24% increase) 90 minutes 79% → 100% (21% increase)
As expected, this is a power adapter with a maximum of 20W. I can charge an iPhone 12 55% in 30 minutes. It can be fully charged in about 1 hour 30 minutes, so this seems like a convincing power adapter when you’re in a hurry.
Anker PowerPort 3 Nano 20W Review: Summary
While the 20W Anker PowerPort 3 Nano is about the size of an eraser, it’s a power adapter that can quickly charge smartphones and tablets like the iPhone with a 20W output.
Anker PowerPort 3 Nano 20W Review: PROS
- 50% charge iPhone 12 in 30 minutes
- Take it anywhere with a compact, lightweight power adapter
- It costs less than the original and feels affordable
Anker PowerPort 3 Nano 20W Review: CONS
- Direct plug attached
With an iPhone 12 charge speed of up to 50% in 30 minutes, it’s compact and can be taken out and used anywhere. And most importantly, I’m glad you can get it for USD 17, which is cheaper than the original Apple power adapter.
Since we prioritize small size there is no help for that, but the PowerPort 3 Nano 20W plug is a direct mount and non-foldable type.
Even though it plugs straight into the plug, the size is so small that it doesn’t bother me too much, but if you really want the type of plug that can be folded down the size will be bigger, but you might want to go for the PowerPort 3 mini or the PowerPort 3 Atom Slim.
With an output of 30W, you can also charge a mobile laptop like the MacBook Air.
Check our store if you are interested to buy this Anker PowerPort 3 Nano 20W with great deals and other parts accessories there. You can also click the Shop Now button below to buy it from external vendors.