Anker Nano 45W Display: our full review

A display that automatically recognizes the iPhone plugged in, shows its charge live, and switches to Care Mode to protect the battery: the Anker Nano 45W does more than just another anonymous GaN brick.

Our rating
4.0/5
Safety and protections: 4.0 out of 5 (weighting 20%)Safety4.0Build and endurance: 4.0 out of 5 (weighting 15%)Build4.0Actually delivered power: 4.0 out of 5 (weighting 25%)Power4.0Protocol compatibility: 4.0 out of 5 (weighting 12%)Protocols4.0Size and technology: 4.4 out of 5 (weighting 8%)Size4.4

How is this rating calculated?

Anker Nano 45W charger with its smart display showing the charge

The essentials

The Anker Nano 45W stands out for its smart display, which automatically recognizes the iPhone plugged in, shows its charge live, and visibly switches to Care Mode to slow charging near the end of the cycle and protect the battery. Its 45W of GaN power charges an iPhone at full speed and can back up a MacBook Air on the go, with a three-stage charge curve disclosed by Anker that limits heat at the end of the cycle. The body stays tiny (1.57 x 1.4 x 1.34 in / 40 x 35.5 x 34 mm, 3.17 oz) despite the display, with 180° foldable prongs handy for sliding into a bag. The limits are real: a single USB-C port with no sharing possible, no Quick Charge and no detailed list of protections on the product page, no cable included, and no warranty duration stated. For anyone who wants more than an anonymous brick and likes to track charging at a glance, this Nano 45W delivers.

Strengths

  • Display that automatically recognizes the iPhone plugged in and shows its charge live
  • 45W of GaN power, enough to charge an iPhone at full speed and back up a MacBook Air
  • Care Mode slows charging near the end of the cycle to protect the battery over time
  • 180° foldable prongs, ultra-compact body (1.57 x 1.4 x 1.34 in / 40 x 35.5 x 34 mm, 3.17 oz)
  • Rotating display stays readable regardless of plug orientation

Limitations

  • No USB-C cable included, you need your own
  • A single USB-C port, no way to charge a second device at the same time without another charger
  • No Quick Charge, only PD and PPS, devices that only support QC miss out on fast charging
  • The product page does not detail a list of protections (overvoltage, overcurrent, short circuit)
  • No contractual warranty duration is stated on the product page
Anker Nano 45W: see the full details and price →

A GaN charger that shows what it is doing

Most USB-C wall chargers are anonymous bricks with no feedback on what happens during a charge. The Anker Nano 45W changes that with a small built-in display that automatically recognizes the connected device and shows its charge live, while keeping the ultra-compact format typical of GaN technology.

45 W
GaN power
3.17 oz
Stated weight
180 °
Foldable prongs

The display, the product's real signature

The moment a recent iPhone (15 and later) or a compatible iPad is plugged in, the display automatically recognizes the device and shows its name along with its current charge percentage, genuinely useful for checking progress at a glance without picking up the phone. With other USB-C devices, it shows the power delivered live, the temperature and the active charging mode. A tap rotates the display so it stays readable regardless of plug orientation.

45W of GaN, from the iPhone to backing up a MacBook Air

The Nano's 45W quickly charges an iPhone, an iPad or earbuds, and can back up a MacBook Air on the go, without aiming for fast charging on a more demanding laptop. Anker highlights a three-stage charge: a fast ramp to 45W from 0 to 20%, a plateau around 30W from 20 to 80%, then a very gentle finish to 100%, to limit heat at the end of the cycle. This curve, disclosed by the manufacturer itself, explains why charging visibly slows on the display past 80%.

Care Mode, visible on the display

Switched on from the display, Care Mode goes further than the standard charge curve by reducing charging temperature even more near the end of the cycle, to protect the battery over time. The change in the display's animation pace makes this deliberate slowdown visible, rather than an unverifiable marketing promise: it is an acknowledged trade-off between charging speed and battery lifespan, not a hidden flaw.

PD and PPS, but no Quick Charge

The Nano 45W supports the USB Power Delivery and PPS protocols, which cover fast charging on recent iPhones, compatible iPads and most current Android devices with Power Delivery. Without Quick Charge, an older device that only supports that protocol will not get its maximum charging speed on this charger.

Compact body, but few details on protections

The body stays tiny despite the display, about 1.57 x 1.4 x 1.34 in (40 x 35.5 x 34 mm) for 3.17 oz (90g), with 180° foldable prongs handy for sliding flat into a bag or pouch. Care Mode acts as an active thermal safeguard during charging, but the product page does not detail a list of standard protections (overvoltage, overcurrent, short circuit) the way some other chargers in the lineup do.

Worth knowing: neither a USB-C cable nor a contractual warranty duration are stated on the product page.

Against the Nano 3 30W and the Prime 160W

How does the Nano 45W display compare with its Anker siblings?

Technical comparison: Anker Nano 45W display against other Anker chargers (observed prices, indicative only)
CriterionNano 45W displayNano 3 30WPrime 160W
Power45W30W160W
Ports1 USB-C1 USB-C3 USB-C
DisplayYes, iPhone recognitionNoYes, larger
Observed price$39.99$15.99$149.99

The Nano 3 30W remains the cheaper option for simple use, but without a display or the extra 15W of the Nano 45W. The Prime 160W goes much further with three ports and a larger display, for a considerably higher budget and a multi-device use case the Nano 45W does not target. Between the two, the Nano 45W display suits anyone who wants a single-port charger that shows more than an anonymous brick, without paying for a multi-port station.

Who the Anker Nano 45W display is for

This charger suits anyone who wants to track charging at a glance and occasionally back up a MacBook Air, without needing multiple ports. For simple use on a tighter budget, the Nano 3 30W is plenty; to charge several devices at once with a fuller display, the Prime 160W is the natural choice.

The rating in detail

Our rating
4.0/5
Actual charging current not measured
Battery compatibility not measured
Safety and protections 4.0
Build and endurance 4.0
Cables and connectors not measured
Actually delivered power 4.0
Multi-port power sharing not measured
Protocol compatibility 4.0
Size and technology 4.4
Format and chemistry compatibility not measured
Charging precision not measured
Display and control not measured
Anker Nano 45W: see the full details and price →

The product and its alternatives

Anker Nano 45W

Anker Nano 45W

See price (36)

The Anker Nano 45W charger's display shows the power delivered, the temperature, and automatically recognizes the iPhone plugged in, live.

View product
Anker Nano 3 (511)

Anker Nano 3 (511)

See price (64)

Tiny but mighty: the Anker Nano 3 (511) packs 30W into a body 70% more compact than a standard charger, with prongs that fold flat for travel.

View product
Anker Prime 160W

Anker Prime 160W

See price (19)

The Anker Prime 160W charger shows, live on its touch display, the power sent to each port: up to 140W on a single USB-C, 160W in total across three.

View product

Frequently asked questions

Yes, on iPhone 15 and later models as well as iPad (10th generation and later), the display shows the device name and its current charge percentage. On other devices, it shows the power being delivered.

The Nano 45W display adds 15W of extra power and, above all, a monitoring display, which the Nano 3 lacks. The Nano 3 remains a good fit for simple, budget-friendly use.

Yes, deliberately near the end of the cycle past 80%, to reduce heat and protect the battery long-term. It is an acknowledged trade-off between speed and battery lifespan, visible on the display.

No, the charger is sold on its own. A standard USB-C cable is enough to get the full 45W, with no special cable required unlike more powerful models.

Yes, as a backup: 45W is enough to slowly charge a MacBook Air or a light ultrabook, but it is not enough for fast charging on a more demanding laptop.