Ocoopa rechargeable hand warmer ZDNET's key takeaways Fantastic rechargeable hand warmer with a wide range of temperatures that also acts as a great emergency power bank.
This unit is water- and dust-resistant, making it perfect for outdoor use.
The unit is rather chunky, and you feel it in a pocket. $34.99 at Amazon
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I spend a lot of time outdoors, and there was a time when I could endure the UK weather with just jeans and a T-shirt. But as I've gotten older, I've come to appreciate a few more comforts -- a little warmth goes a long way.
Also: The best power banks you can buy
Recently, I've been testing rechargeable hand warmers, and to be honest, most of them are junk. Some were dead on arrival, others failed after a few hours, some had absurdly short runtimes, and others got dangerously hot. I've found a few good ones, but they're rare. What I've been searching for is a hand warmer that combines fast USB-C charging, water resistance, power bank functionality, and the ability to handle extreme cold.
I've finally found one that ticks all the boxes -- and more: the Ocoopa UT4 Extreme rechargeable hand warmer.
While these specs are fairly standard for power banks, they're good enough for a couple of smartphone recharges. I see the power bank feature as more of an emergency backup than its primary function.
Yes, it's even water-resistant! Adrian Kingsley-Hughes/ZDNET
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