Anker's 100W 3-port charger squeezes GaN internals into an ultra-compact body and charges several devices quickly. Reviewers pointed to the smart display, which reports charging status in real time, and noted the charger scales down for low-power devices. ActiveShield 4.0 checks temperature frequently. Users did report brief interruptions when devices switch, and the display has to be rotated by hand. It suits anyone who wants portable, high-performance charging with visual feedback.
Full review
GaN internals in place of a laptop brick
The point of this charger is that gallium nitride switching lets 100W of output fit into a block small enough to travel with, replacing a laptop's own power supply and its phone charger at the same time. The plug folds flat so nothing snags inside a bag, and the prongs are thick enough that the weight of the block does not lever it out of a loose wall socket. For anyone whose daily carry is a laptop, a phone and a pair of earbuds, one charger replaces three.
Three ports, but only one of them stays fast
Either USB-C port can deliver the full 100W on its own, and the USB-A port is specified at 33W. Run all three at once and the split is severe: the primary USB-C port holds up to 80W while the other two fall to 12W and 7.5W. That is fine for a laptop plus a phone plus earbuds, and poor for two laptops. Anyone planning to charge a second high-draw device should treat this as a single-laptop charger with accessories attached rather than a genuine three-way unit.
The display reports watts, volts and temperature
A small screen on the body shows live power, voltage and temperature, plus animated readouts and a running total of hours used. It is the feature that distinguishes this charger from the dozens of visually identical bricks around it, and it is more than a novelty: seeing that a laptop is drawing far less than expected is the quickest way to discover a cable that cannot carry the current. Brightness is the weak point, and it washes out in direct sunlight.
Charging pauses briefly when a device joins
Plugging in an additional device makes the charger renegotiate power across every port, and everything connected stops for a moment while that happens. It is a safety behaviour rather than a defect, and on a laptop it is invisible, but it is noticeable if a phone is mid fast-charge. Owners who plug and unplug frequently through the day notice it more than those who set the charger down and leave it.
Rotation is a long press away, every time
The display orientation only changes with a deliberate long press, stepping round a quarter turn at a time, which is tedious the first time a socket turns out to be sideways. The setting is at least remembered between power cycles. Against that, the display has been reported as sensitive enough to register accidental contact and change orientation on its own, which is the opposite problem in the same feature.
Scales down for earbuds and watches
The other genuinely useful behaviour is at the bottom of the power range, where the charger throttles down for low-draw devices like earbuds and smartwatches instead of pushing current at them. That is what allows one block to cover an entire bag of devices, and it is the reason the charger survives being the only one packed. No cables are included, so the first purchase is rarely the only one.
Strengths
- +Delivers up to 100W maximum output with advanced GaN technology for fast charging
- +Features a smart display that shows live power, voltage, and temperature readings
- +Compact and travel-friendly design with foldable plug and 30% smaller frame
- +ActiveShield 4.0 technology monitors temperature over 1,000,000 times a day for safe charging
Watch-outs
- −Charging may briefly stop when connecting a new device due to power redistribution
- −Display rotation requires manual adjustment with multiple presses
How it compares
The Anker Phone Charger with ActiveShield 4.0 offers the smart display feature and ultra-compact design, but it's more expensive and less powerful than the Anker Prime 100W model. While it provides real-time charging feedback, the Prime model delivers higher wattage and better performance for laptops, making it more suitable for users needing maximum charging power.
Rating sources
“The Anker PowerPort III Nano is the best option for charging any phone fast: It's tiny and inexpensive, and it can get a fully drained phone battery to more than 50% full in half an hour.”
“I think this is actually very very good display. Okay, the smart display is definitely much uh good to uh allow the users to see a lot of things uh that what is actually happening with the adapter charger.”
“Overall, very nice device. In our testing, it worked great.”
Our 4.5 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
