Best GaN Chargers for the Samsung Galaxy S21 Ultra


The Samsung S21 Ultra features a large and stunning Dynamic AMOLED 2X display with a high resolution (up to 3200 x 1440 pixels). It supported a 120Hz refresh rate for smooth scrolling and animations, which was great for gaming and overall user experience.

Equipped with top-of-the-line processors (Snapdragon 888 or Exynos 2100, depending on the region) and ample RAM, the S21 Ultra delivers excellent performance for multitasking, gaming, and running apps.

Samsung introduced S Pen compatibility for the S21 Ultra, making it the first phone in the S series to support the S Pen stylus. Which previously only existed within the Galaxy Note series. This functionality blended the two brands, Galaxy S and Note together in one package.


The Samsung S21 Ultra has a unique camera system with multiple lenses, including a 108-megapixel primary camera, a periscope telephoto lens for high-quality zoom, and various other sensors. This allows you to take stunning photos and videos. Especially in challenging lighting conditions.

The S21 Ultra has impressive zoom capabilities, offering up to 100x digital zoom. While the quality at the highest zoom levels is not always perfect, it allows users to get incredibly close to distant subjects.


The Samsung S21 Ultra comes with a sizable battery of 4800 mhA that could easily last a full day of heavy use. It also comes with a suite of charging features like Fast charging, wireless charging, and reverse wireless charging. This meant it didn’t matter what you had to hand the S21 Ultra would most likely excel.

In order to get the best out of your S21 Ultras battery features we recommend getting a high-speed charger so your device can keep up with you in a flash. GaN chargers are perfect for this as they a pocket size but pack a huge punch thanks to their newer charging technology.

We’ve come up with a list of the best ones you need to know about from Amazon.

SAMSUNG Galaxy S21 Ultra 5G
The incredible Samsung S21 Ultra 5G is available now on Amazon
Anker Prime 67W USB C Charger
Pocketable power at 67W. It has three slots; 2 USB-C and 1 USB type A. Using Ankers IQ technology means you'll get just enough charge to your devices as needed.
Anker Prime 100W USB C Charger
Pocket power of 100W. The bigger brother to the 67W charger means more power with the same ports and reliability. Coming with foldable prongs mean its perfect for traveling!
UGREEN 100W USB C Wall Charger
Ideal for multi-device charging. This 2 port USB C charger means you can charge your phone and any USB powered laptop or handheld without a sweat.
UGREEN USB C Charger 65W
Sometimes you just don't need a 100W charger! Sometimes you just need something small that packs a punch. For your slightly less intense devices, this 65W will fit right in.
MINIX NEO P3 100W Turbo 4-Ports GaN Wall Charger
Regardless if it's just for a weekend away or moving abroad. There is nothing worse than realising you don't have the right connector for your outlet. The exchangeable pin heads on this MINIX charger make it perfect for jet setters.
Amazon Basics 100W Four-Port GaN Wall Charger
Sometimes it can be a wild guess knowing which port actually delivers what wattage. This charger sorts that problem. Discretely labelled at the plug-in points, you'll always know what wattage you're plugged into.
UGREEN Nexode 100W USB C Charger
As the most expensive charger on this listing, this has the most features. From a wireless charger up top, to 3 high speed ports at the bottom, this makes a great addition to any desk or coffee table.
Belkin 65W Dual USB-C Wall Charger
This tiny charger of 1 inch by 2 inches is packed with power for its size. So when you don't want to compromise on having fast charging but when space is really tight? This Belkin charger is just what you need.
Gravastar GaN Fast Charger
Chargers don't have to be boring! As proven by this little guy. How cute is he! This will cheer up any desktop environment.
Shargeek USB C Charger
There is one thing you'll notice across the majority of these chargers and that they are all matt black. That's boring! For those who are looking for a splash of colour with their charger should check out Shargeek. They come with the same fast charging but with a brighter appearance which is sure to cheer things up.

Note: this article may contain affiliate links that help support our authors and keep the Phandroid servers running.

Specious Coda-Bishop
Staff Writer @phandroid | Top 5 Kingdom Hearts 3 Speedrunner | Twitch Affiliate | Xbox Ambassador

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