Anker Prime 100W GaN Charger Review — A refined, eco-friendly update to a travel staple that perfects the physical design but requires users to carefully juggle its power-sharing quirks

Anker's latest 100W GaN charger boasts a refined design that finally solves the annoying wall-slip problem, but don't expect it to be a miracle worker when you plug in multiple devices. This isn't just another iterative update; Anker has clearly listened to feedback, delivering a charger that feels more secure and travel-ready than ever before. However, the real story here lies in how it handles power when you're juggling multiple gadgets, and that's where things get a little more complicated.

What you're actually getting

Let's cut to the chase: the Anker Prime 100W GaN Charger is a solid piece of kit, especially if you're primarily looking to juice up a single, power-hungry device. Its compact size, combined with those satisfyingly grippy foldable prongs, makes it a dream for tossing into a backpack or travel bag. No more fiddling with a charger that keeps popping out of the wall socket; this one stays put. Reviewers consistently praised its thermal management, noting that it runs cool even under heavy load. As The Breakdown With Luke put it, "With the smaller size and foldable prong, it makes it a great travel device. Heat was no problem in our testing."

However, the magic starts to fade when you try to charge more than one thing at a time. The biggest caveat, and one you absolutely need to be aware of, is the severe power drop on the primary USB-C ports when the USB-A port is in use. wwjoshdew highlighted this starkly: "I would only connect that USB-A if you really need it, 'cause the moment you do, you significantly lose out on power delivery." This isn't a minor dip; it's a substantial compromise that means you won't be fast-charging multiple devices simultaneously. Furthermore, the USB-A port itself is capped at a rather pedestrian 5V, limiting its usefulness for anything requiring more juice. While it supports 5A PPS for Samsung Super Fast Charging 2.0, it doesn't quite reach the 20V some might expect.

The packaging also deserves a nod. In an era where we're all trying to be more mindful of our environmental impact, Anker's commitment to 100% paper, single-use plastic-free packaging is genuinely commendable. AllThingsOnePlace even called it out, stating, "The packaging on this product is 100% paper, no single-use plastics at all. Nice." It’s a small detail, but it adds to the overall positive impression of a thoughtfully designed product.

Performance — what reviewers actually measured

The Anker Prime 100W GaN Charger's performance is best understood by looking at how it distributes power:

• Single-port max output: 100W (This is where it truly shines)
• Dual USB-C power split: 65W + 30W (Decent, but not ideal for two laptops)
• PPS Mode max current: 5 Amps at 11V (Good for compatible devices like Samsung phones)
• USB-A port limitation: 5V only (Significantly restricts its utility for faster charging)

Where it actually wins

This charger absolutely nails its core competency: delivering robust, reliable power to a single device. If your primary need is to fast-charge your laptop while you're on the go, or to give your Samsung phone that Super Fast Charging 2.0 boost, the Anker Prime 100W is an excellent choice. The 100W output is consistent and, as mentioned, it runs remarkably cool, which is crucial for longevity and user comfort. The improved grip on the AC pins is a small but significant quality-of-life improvement that makes a tangible difference in daily use. It feels secure, dependable, and built to last.

The portability factor is another major win. Anker has managed to pack 100W of power into a chassis that's smaller than many older 65W bricks. The foldable prongs are a must-have for travelers, and the overall build quality feels premium. This isn't a charger that feels flimsy or cheap; it’s a tool designed for the rigors of travel and frequent use. Plus, the eco-conscious packaging is a refreshing change of pace.

Where it falls short

The biggest drawback, and it's a significant one, is the aggressive power-sharing when all three ports are engaged. The moment you plug something into that USB-A port, the power available to your primary USB-C devices takes a nosedive. This severely limits its ability to act as a true multi-device fast-charging hub. If you're someone who needs to top up a laptop, tablet, and phone simultaneously at their fastest speeds, this charger will disappoint. The 65W + 30W split for two USB-C ports is functional, but it’s not ideal for charging two power-hungry laptops.

The limitations of the USB-A port are also a letdown. Capping it at 5V means it's essentially relegated to charging low-power accessories or older devices. While the PPS support is good, the fact that it doesn't reach 20V means it's not quite hitting the peak performance some might expect from a 100W charger, especially when compared to some competitors. The lack of clear diagrams in the manual explaining these power-sharing splits only exacerbates the confusion for users trying to figure out why their devices aren't charging as fast as they'd hoped.

Should you buy it?

The Anker Prime 100W GaN Charger is a highly capable charger, but its effectiveness hinges entirely on how you plan to use it. It excels in specific scenarios but falters when pushed beyond its intended limits.

Buy if you

• Need a compact, reliable 100W charger for a single laptop or high-draw device.
• Are a frequent traveler who values portability and a secure wall connection.
• Own a Samsung phone and want to take advantage of its 5A PPS Super Fast Charging 2.0.
• Appreciate eco-friendly packaging and a cool-running charger.

Skip if you

• Need to fast-charge multiple high-wattage devices simultaneously.
• Rely heavily on the USB-A port for anything other than low-power accessories.
• Are looking for a charger that offers maximum power distribution across all ports at all times.

Anker's Prime 100W is a highly capable, travel-friendly 100W charger that excels at single-device charging, provided you understand its multi-port limitations.

Sources consulted

• MobileReviewsEh — I Tested $1200 Worth Of 100W+ GaN Wall Chargers - Here Are My Top 5
• AllThingsOnePlace — Anker Prime 2024 100W and 240W USB C Chargers Reviewed and Tested
• wwjoshdew — Anker Prime 100W 3-Port Foldable and Compact GaN USB C Charger and 240w Prime Braided Nylon Cable
• The Breakdown With Luke — Review: Anker Prime Charger, 100W USB C Charger, 3-Port GaN Foldable and Compact Anker Wall Charger

Synthesis combines independent reviews above. Verdicts and quotes attributed to original creators. Affiliate disclosure: we may earn a commission from qualifying purchases via Amazon links.