Anker Nano Power Bank (5K, MagGo, Slim) review: buy or skip?

Buy7.8/10 research score

Quick answer

Buy it, if you want a thin top-up battery for your iPhone. Why: very slim magnetic power bank for daily top-ups. The catch: small capacity.

By Buyrskip Editorial Team Updated November 2, 2026 1 min read

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Our verdict on the Anker Nano Power Bank (5K, MagGo, Slim)

Buy it if: you want a thin top-up battery for your iPhone.
Skip it if: you need a full recharge.

Best for: Slim everyday
Key feature: Very slim magnetic power bank for daily top-ups
Typical price: $49–$59

Check Price on Amazon Paid link

Key specifications

Capacity	5,000 mAh
Max output	15 W wireless
Ports	1× USB-C
Weight	122 g

Who should buy it, and who should skip it

A good fit if you

you want a thin top-up battery for your iPhone
value very thin
can spend around $49–$59

Skip it if you

you need a full recharge
mind this: small capacity
mind this: slower wired

Pros and cons

Pros

Very thin
Qi2
Light
Cheap

Cons

Small capacity
Slower wired

The verdict in one breath

The Anker Nano Power Bank (5K, MagGo, Slim) is a power bank we would point many buyers to. What earns it the buy: very slim magnetic power bank for daily top-ups. In our list it is the pick for: slim everyday.

Reasons to buy

Very thin
Qi2
Light
Cheap

Reasons to skip

Small capacity
Slower wired

The specs that matter

Capacity: 5,000 mAh
Max output: 15 W wireless
Ports: 1× USB-C
Weight: 122 g

Worth knowing

Thin enough to leave on the phone in a pocket.

Buy it or skip it?

Buy it if you want a thin top-up battery for your iPhone. Skip it if you need a full recharge; the Belkin BoostCharge Pro Qi2 5K is the better buy then. Everything else is in our list of the best power banks.

Alternatives worth considering

Belkin · Power Banks

Belkin BoostCharge Pro Qi2 5K

Buy it if you use an iPhone and hate cables.

Verdict: Buy
Best for: iPhone
Typical price: $49–$69

Pros

Qi2 magnetic
Slim

Cons

Small capacity

Check Price on Amazon Paid linkRead our review

Anker · Power Banks

Anker Nano Power Bank 10,000 mAh (30 W)

Buy it if you want a small pack that refills your phone twice.

Verdict: Buy
Best for: Everyday
Typical price: $29–$39

Pros

Built-in cable
Compact

Cons

Not for laptops

Check Price on Amazon Paid linkRead our review

Frequently asked questions

Should I buy the Anker Nano Power Bank (5K, MagGo, Slim)?

Buy it, if you want a thin top-up battery for your iPhone. Why: very slim magnetic power bank for daily top-ups. The catch: small capacity.

When should I skip it?

Skip it if you need a full recharge. The Belkin BoostCharge Pro Qi2 5K is the better buy then.

What does the Anker Nano Power Bank (5K, MagGo, Slim) cost?

Usually $49–$59 on Amazon.com. It tends to dip during Prime Day and Black Friday.

Buyrskip Editorial Team

Part of the Buyrskip research team. We compare specifications, documentation and real-world trade-offs so you can decide faster.

How we research products Editorial policy

Anker Nano Power Bank (5K, MagGo, Slim): the full buy-or-skip review

Is the Anker Nano Power Bank (5K, MagGo, Slim) worth buying? Short answer: buy it, if you want a thin top-up battery for your iPhone. This review explains what this Anker model gets right, where it falls short, what it usually costs in the US and which power bank to buy instead if it is not the right fit for you.

What the Anker Nano Power Bank (5K, MagGo, Slim) does well

The headline: very slim magnetic power bank for daily top-ups. Key specs: Capacity: 5,000 mAh; Max output: 15 W wireless; Ports: 1× USB-C; Weight: 122 g. In our list it is the pick for: slim everyday. It usually sells for $49–$59.

Thin enough to leave on the phone in a pocket.

The trade-offs

Good: very thin, Qi2, light, cheap. Not so good: small capacity, slower wired. Read the skip-if line before you order: skip it if you need a full recharge.

What to buy instead

Instead, consider the Belkin BoostCharge Pro Qi2 5K ($49–$69): snaps onto your iPhone and charges at 15 W without cables. Better if you use an iPhone and hate cables.

Instead, consider the Anker Nano Power Bank 10,000 mAh (30 W) ($29–$39): pocketable pack with a built-in USB-C cable. Better if you want a small pack that refills your phone twice.

Instead, consider the Anker MagGo Power Bank 10K ($69–$89): Qi2 magnetic power bank with a kickstand. Better if you want cable-free charging for an iPhone.

Before you buy

Capacity: 10,000 mAh refills a phone about twice; 20,000 mAh or more for laptops and trips. Speed: USB-C Power Delivery at 20–30 W charges phones fast; 65 W+ for laptops. Flights: the FAA allows up to 100 Wh (about 27,000 mAh) in carry-on bags only.

US buyer tip

Stick to known brands with UL certification: cheap unbranded power banks are a common fire risk.

Prices on Amazon.com move in a pattern. The deepest cuts land on Prime Day in July, Prime Big Deal Days in October and the Black Friday to Cyber Monday week, with smaller drops around Presidents Day, Memorial Day, the Fourth of July and back-to-school. Judge a deal against the usual price we show, never against the crossed-out list price.

Order from Amazon itself or the brand's official storefront so the US manufacturer warranty applies, keep your order confirmation and register the product with the brand. Most items can be returned within 30 days, and holiday purchases often get an extended return window into January.