Anker Nano 621 22.5W Power Bank with built-in USB-C connector review

Enough power for the daily commute and a built-in USB-C in an adorably compact package

Anker Nano 22.5W Power Bank
(Image: © Gareth Bevan / Digital Camera World)

Digital Camera World Verdict

The Anker Nano 22.5W power bank stands out as a potentially ideal solution for emergency charging needs. With a capacity of 5,000mAh, it offers just the right amount of power to give your phone a vital boost precisely when it's required. The 22.5W output ensures a swift recharge. Its compact size allows it to accompany you effortlessly anywhere you go. Notably, the built-in pop-up USB-C port eliminates the need to carry an extra cable. Having one of these about your person feels almost essential.


  • +

    Built-in USB-C

  • +

    Compact size

  • +

    Fast charging speed

  • +

    Battery indicators


  • -

    USB-C can get knocked out

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    Limited capacity

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Power banks are usually separated into two categories, small ones for your portable devices, and big ones for your laptops and the most demanding charging situations. These usually offer capacities enough to recharge your devices a couple of times over and a few different ports for charging lots of things at once.

A relatively new category is the tiny little power bank that plugs directly into your phone. Tiny power banks have been around before, in fact, Anker already makes a lower-powered version of this exact power bank with an Apple Lightning connection. But as the iPhone 15 series is expected to swap to USB-C, the same as practically all Android phones, Anker is ready for the switch. 

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Gareth Bevan
Reviews Editor

Gareth is a photographer based in London, working as a freelance photographer and videographer for the past several years, having the privilege to shoot for some household names. With work focusing on fashion, portrait and lifestyle content creation, he has developed a range of skills covering everything from editorial shoots to social media videos. Outside of work, he has a personal passion for travel and nature photography, with a devotion to sustainability and environmental causes.