BMX SolidSafe Air ZDNET's key takeaways The BMX SolidSafe Air is available now for $60.
It's the thinnest Qi2 power bank I've tested, with a semi-solid-state battery that's safer and less flammable than regular lithium-ion batteries.
It's rather expensive for a power bank. View now at Heybmx
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The problem with MagSafe power banks is that there are very few that don't make my iPhone 17 Pro Max too big to hold. Even the smaller ones aren't comfortable. This partly due to my genetics (yes, I have small fingers), and partly due to the fact that putting this oversized smartphone into a chunky case makes it even more unwieldy.
Also: The thinnest MagSafe charger I've tested adds almost no weight to my iPhone
Add to that my predisposition for larger power banks, and the problem is exacerbated. This is why, over the past couple of years, my preference for wireless power banks has shifted from the larger 10,000 mAh and 20,000 mAh packs to the more compact 5,000 mAh ones.
They're smaller, lighter, and ultimately more convenient, and as such less likely to be left at home. So, when I was offered the chance to review the new BMX SolidSafe Air, marketed as the world's thinnest 5,000 mAh Qi2 power bank (and one that won several awards at CES 2026) I jumped at the opportunity.
Let's start with how thin the SolidSafe Air is. It's only 0.27 inches (6.8 mm) or, for a fun comparison, about four nickels or seven credit cards stacked together. And in case Warren Buffett is reading this, that's roughly a stack of sixty $100 bills.
Now, if you bought this power bank you might notice that the packaging claims the SolidSafe Air is "just 3 credit cards thin," but I've said it's seven. What gives? A standard, ISO/IEC 7810-compliant credit card measures exactly 3.375 × 2.125 × 0.03 inches.
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