Here are two that show why


GaN chargers have been around for a while now, but it’s only been relatively recently that the price of gallium nitride (GaN) has fallen to the point where it has become mainstream. The main benefit is high power in a small package.

The UGreen 200W GaN charger claims an impressive 200W, while OneWorld65 shows just how small this Mac travel charger can be…

I’ve tested both, and the benefits really justify the relatively modest price premium you now pay for more advanced charging technology.

What are GaN chargers?

Traditional power bricks, like the devices that power them, are silicon-based. Gallium nitride, or gallium, is a semiconductor replacement material.

Gallium isn’t a naturally occurring metal, and it’s fairly difficult to manufacture — which is why GaN chargers were so rarely priced in the past. But the effort and expense is worth it, because GaN power bricks offer some, uh, solid advantages over silicon ones.

First, they are Many More efficient in conducting current. This means you can pack more energy into the same volume. Or in other words, you can squeeze a lot of capacity into a much smaller die.

Second, because they lose less energy, they generate less heat. This is generally a good thing, since overheating is one of the easiest ways to kill tech devices, but it also means they don’t need a massive heatsink like the ones inside silicone chargers. So it can be more compact.

Third, the greatly improved efficiency is better for the environment, with less energy wasted as heat.

But perhaps the biggest benefit for the consumer is using a single charger to do it all. The UGreen Charger is the charger to go with if you need to power up two MacBook Pros, or get the fastest charging times for MacBooks, iPads, and more. OneWorld65 offers the most compact unit, which will still meet the travel needs of many Apple Collection owners.

UGreen 200W GaN charger

See and feel

I usually start with looks, but the most notable first impression in this case is the feel – or more accurately the weight! This thing weighs 1.14 pounds, which is a bit of a shock to hold, as the compact device looks like it should weigh about half that.

That’s about twice the weight of Apple’s 96W power brick — but then this thing delivers twice the power, and six times the number of ports.

Looks-wise, it has a low-key design that I personally love. The upper part of it is dark silver gray, with a small UGREEN logo and tag. The edges are a darker shade, appearing almost black in some lights, but still have a hint of silver. The rule between the two.

The back side has a cloverleaf power socket for the supplied cable. This is similar to a figure 8 socket but with an additional ground pin. The front has four USB-C jacks and two USB-A ports.

The case material is UBS plastic, but with a nice finish, and the weight gives it a real sense of solidity and quality.

performance

While you’ve got (roughly) 200 watts to play with, and six outlets waiting for you to plug your devices in, there’s some important little print below. This tells you that:

  • USB-C 1: 100W max
  • USB-C 2: 100W max
  • USB-C 3: 65 W max
  • USB-C 4: 65 W max
  • USB-A 1: 22.5W max
  • USB-A 2: 22.5W max

You’ll notice that the total is well over 200 watts, so we need to sprinkle a mixture of AND and OR in there.

The good news is that you can power two 16-inch MacBook Pro models at the same time. Just plug one into USB-C ports 1 and 2, and you’ll get 100W on each. But … this is your lot. If you plug anything into the other outlets, the power available to each of them will drop dramatically.

For example, if you connect a third MacBook to USB-C port 3, all three ports will now be limited to just under 65W. Use all six ports, and C1 will be limited to 65W, C2 and C3 will both drop to 45W, and C4 will drop to 20W—and the two USB-A ports will get old-school 5V at 4A.

UGreen explains all of this in a set of illustrations:

So if you want to squeeze every last watt out of your charger, you’ll need to carefully check whether the mix of devices you want to power is feasible.

for bone The answer, though, would be yes: this one power brick can do it all. Like me, for example. I want to be able to power:

  • 16-inch MacBook Pro (96 W)
  • 12.9-inch iPad Pro (45 W)
  • iPhone 13 Pro Max (27W)
  • Apple Watch Series 5 (5W / 18W*)

* 5W is sufficient for fast charging if the charger supports USB-PD, otherwise 18W is required.

Now, in theory, I can’t do all of that – because if I use four ports, C1 is limited to 65W, while C2, C3, and C4 are all fine.

However, the MacBook Pro only reaches its maximum draw of 96 watts under stress until far away Pregnancy request. In practice, I was able to comfortably charge and use my MBP, iPad and iPhone at the same time, while also charging the watch.

The charging speed is amazing. With just the MacBook and iPad connected, making sure the C1 has a full 100 watts available to it, it recharges from 10% to full in less than 90 minutes.

OneWorld65 GaN Charger and Travel Adapter

See and feel

The OneWorld65 is a combined travel charger and adapter, and is much the same as previous (non-GaN) OneAdaptr models.

It’s white with blue accents, and has the usual set of three sliders on the side for selecting the pins you need for your local power plugs. On the flip side, you can plug in almost any country.

The OneWorld65 is more USB-C focused, with a total of three USB-C sockets and two USB-A ports.

performance

In the same compact unit as previous models, you can now get a total of 65 watts of power — incredibly impressive for a unit this size. This decomposes as follows:

  • 10W AC outlet (with universal sockets)
  • 65W USB-C Power Delivery port suitable for MacBooks
  • 20W USB-C Power Delivery port suitable for iPad
  • 3 smart USB sockets (1 x USB-C, 2 x USB-A) suitable for iPhones

Of course, the same disclaimer applies to the UGreen charger: the power ratings shown are all max. Actual output depends on the mix of power sockets used, but you can get a full 65W if you just use the high-power USB-C socket; 45 watts and 15 watts; and various other groups.

The device is primarily designed for charging on the go, for filling batteries in airport lounges, and for powering one or two devices on an airplane, for example.

The maximum output of 65W is fine for smaller MacBooks, but I also found it enough to fully power the 16-inch MacBook Pro M1 Max for everyday use.

As for the travel adapter aspect, the company says it’s compatible with more than 200 countries.

Prices and conclusions

At $200, the Ugreen charger 200 watts It is an expensive energy brick! But that price actually works out at $1 per watt.

If you compare it to Apple chargers, the company charges more or less $1/watt, depending on the model. A 140-watt charger comes in at $99, for example, while a 35-watt dual-port charger costs nearly $2 per watt, at $59.

For many, 200W is overkill. If you just need to power/charge your MacBook Air, smaller iPad, and iPhone, there are plenty of cheaper options. But as someone who needs to power a 16-inch MacBook Pro, 12.9-inch iPad, iPhone 13 Pro Max, and sometimes a thing or two extra, I consider getting all that power in a compact device worth the cost.

Anyone who needs to run two MacBooks at once will also find this to be a good deal, I think. Especially since it is currently available at a discounted price on Amazon.

The OneWorld65 GaN Charger and Travel Adapter It is designed for a different role. It could potentially be an all-in-one charger for those who need lighter power, but it’s mostly about portability and convenience. I can toss this device in my carry-on bag and plug it into any socket I can find while traveling, and either power it up or charge it as needed. But you can also use it in your country as a small and lightweight brick for coffee shop use.

Mostly, I think, it will come down to how much you travel – or what you’re willing to pay for the convenience of doing so. For me, $69 is well worth the cost, and the company is offering 15% off on 9to5Mac readers, bringing the price down to $58.65. Just use the code 9to5Mac 15% off when you go out.

The UGreen 200W GaN Charger costs $199.99, but is currently available from Amazon for less. The OneWorld65 GaN charger is available from OneAdaptr for $69 ($58.65 with discount code).

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