The fastest-charging power bank we’ve tested in our lab is 20% off


Cuktech 15 Air

Adrian Kingsley-Hughes/ZDNET

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ZDNET always tests products before we recommend them, whether that’s hands-on testing in our home or data-based testing in our lab in Kentucky. We’ve tested everything from tablets, portable power stations, and more to award them a Lab Award badge for outstanding performance. 

For our power banks Lab Award, out of the 10 devices we tested in the lab, the Cuktech 15 Air charged to 100% the fastest. And right now, during Prime Day, you can get this award-worthy power bank for $64 ($16 off). 

Also: June Prime Day live blog 2026: We’re tracking Amazon deals on SSDs, TVs, laptops and more

Based on our data-driven comparison of how quickly each unit reached charge milestones of 50%, 80%, and 100%, the Cuktech 15 Air reached 100% battery in only 54 minutes. It also took only about 26 minutes to charge to 50%, which is great for those who want a quick top-up. 

This power bank is also thinner and lighter than most 10,000mAh power banks, weighing in at just .6 pounds. The 15 Air has three outputs: two USB-C ports with maximum outputs of 65W and 27W, and a USB-A port with a maximum of 18W output. This means this one power bank can charge your laptop — albeit not at full speed — a smartphone, and a legacy or low-power bit of kit. 

Review: Cuktech 15 Air

It also has a brilliant color TFT display that shows you everything, from the battery charge level and current to the port outputs, allowing you to have finer control over charging. 

If you’re looking for a power bank to buy during Prime Day, make it the Cuktech 15 Air, especially at it’s 20% off discount. 

How I rated this deal 

According to our deal-rating system, this 20% off deal should be rated 3/5, but since this is a recent ZDNET Lab Award winner, I gave it a 4/5 deal that you don’t want to miss out on. 

Amazon Prime Day runs this week until the end of Friday, June 26. However, we usually see lingering deals a day or two after the event, but don’t count on seeing remaining discounts on big-name brands after the event ends. 


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This deal is listed as a Prime Day Deal, so it will end after the event is over on Friday, June 23, at 11:59 p.m. PT. If you want to snag our Lab Award power bank winner, make sure you buy before then. 


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We aim to deliver the most accurate advice to help you shop smarter. ZDNET offers 33 years of experience, 30 hands-on product reviewers, and 10,000 square feet of lab space to ensure we bring you the best of tech.

Last year, we refined our approach to deals, developing a measurable system for sharing savings with readers like you. Our editor’s deal rating badges are affixed to most of our deal content, making it easy to interpret our expertise to help you make the best purchase decision.

At the core of this approach is a percentage-off-based system to classify savings offered on top-tech products, combined with a sliding-scale system based on our team members’ expertise and several factors like frequency, brand or product recognition, and more. The result? Hand-crafted deals chosen specifically for ZDNET readers like you, fully backed by our experts.

Also: How we rate deals at ZDNET in 2026


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TL;DR

Meta stripped NameTag facial recognition code from its AI app one day after WIRED exposed it on 50 million phones. Meta says no decision has been made.

Meta removed nearly all traces of an unreleased facial recognition system from its smart glasses companion app on Friday, one day after WIRED reported that the software had been quietly embedded in an app installed on more than 50 million phones. The feature, which Meta internally called NameTag, was designed to convert faces captured by the company’s Ray-Ban smart glasses into unique biometric signatures and compare them against a database stored on the user’s device. WIRED also found that faces the system failed to recognise were cropped, indexed, and stored locally for future processing.

Andy Stone, Meta’s vice president of communications, told WIRED on Monday that the feature is “purely exploratory,” adding that no final decision has been made on what to do with it. That characterisation sits uneasily with the evidence WIRED documented. The version of Meta AI published the day of WIRED’s Thursday report contained several code libraries explicitly named for face recognition, a process for running the NameTag recognition pipeline, and a “Person recognised” alert the app would have shown if someone were identified.

Friday’s release stripped all of it out, along with a folder where the app would have stored the cropped images and biometric signatures of unrecognised faces. Meta did not answer WIRED’s questions about why the code was removed or whether the changes were planned before the story was published. A few fragments remain in the latest version, including an internal debug menu label and a dormant link meant to open a recognised person’s profile, pointing to parts of the system that are no longer there.

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The gap between Meta’s public statements and the code WIRED found is the central tension. Before the Thursday report, Stone dismissed the findings by writing that the company could not answer questions about how the system would work because “the feature does not exist.” Andrew Bosworth, Meta’s chief technology officer, called the reporting “incredibly misleading” and “absolutely dishonest.” Yet the code was functional enough to include three AI models, one to detect faces, another to crop them, and a third to encode them as biometric data, all embedded in the companion app for a product already at the centre of a mounting privacy crisis.

Meta declined to answer ten questions WIRED posed before publishing, including whether it had already created the database of face profiles NameTag uses, how long the app retains photographs and biometric data of unrecognised people, and whether that data would ever be sent back to Meta’s servers. The company also did not respond to questions about whether it was building NameTag for blind or low-vision users, or to criticism from privacy advocates who warned the system could let stalkers and abusers identify strangers in public.

NameTag first surfaced in February, when The New York Times, citing internal Meta documents, reported that the company was developing face recognition for its smart glasses and considering a launch as early as this year. One internal memo reportedly described releasing the feature during a “dynamic political environment” when privacy and civil liberties advocates would be distracted by other concerns. WIRED subsequently found that much of NameTag’s machinery had been built into the Meta AI app as early as January, months before any public acknowledgement, adding another layer to the company’s pattern of shipping first and disclosing later when it comes to its smart glasses.

Kade Crockford, director of the technology for liberty programme at the American Civil Liberties Union of Massachusetts, said the removal does not undo the original decision to ship the code and pointed to it as evidence that consumer privacy needs stronger legal protection than Congress has been willing to provide. The Massachusetts House of Representatives last week unanimously passed a consumer privacy bill that, if enacted as written, would impose strong enforcement provisions including a private right of action allowing aggrieved users to sue. “State lawmakers need to do their job and step up to protect consumer privacy,” Crockford said.

Meta’s sneaky tactics in slipping the face-recognition code into its smart glasses show exactly why data privacy bills need the teeth of strong enforcement,” Crockford added. “Companies like Meta prioritise their bottom line, so lawmakers need to speak in the only language its C-suite understands.” Whether a code removal prompted by investigative reporting constitutes a victory or merely a tactical retreat depends on what Meta does next, and on whether the regulatory pressure building on both sides of the Atlantic produces enforceable consequences before the feature quietly returns under a different name.



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