This $19 Pocket-Sized Gadget Will Keep You Warm in Frigid Temperatures

Debate the pros and cons of modern technology all you want, but it has given us some neat ways to keep warm. Heated clothing and desktop space heaters are a couple of the best gadgets designed to make you feel toasty during winter, but Amazon has something even more affordable you can pop into your coat pocket.

This Orastone Rechargeable Hand Warmer has more than 4,000 five-star ratings, and it’s on sale for less than $20. It’s even available for same-day delivery (for Prime members) if you’ve got immediate plans to brave the cold.

Orastone Rechargeable Hand Warmer

The electric hand warmers are a sleek little device that’s just slightly bigger than an Apple AirPods charging case. Each side is 2.3 inches long, making it ideal for keeping in your palm or even sliding into a glove, and it weighs about as much as a C battery. While most warming devices come only in plain blacks and grays, these go out of their way to look pleasant in four colorful designs.

Aesthetics are great and all, but how much heat do these give off and how’s the battery life? “Heats up fast and stays hot,” says one shopper. “Haven’t pushed the limit of a charge yet, but [the] warning light to charge is [a] great feature.”

Orastone says its rechargeable hand warmers reach a maximum temperature of 107 degrees Fahrenheit in less than two minutes, with heat coming off both sides of the device. The brand says a full charge will get you three to four hours of heat—and the reviews back that claim.

“Some of the best money I ever spent,” wrote another person. “My hands are always freezing, and I hate having to stock up on the one-and-done hand warmers.” A third Amazon shopper said, “I slipped it into my glove before putting my hand in, and it was heavenly.”

While the consistent heat level is raved about, most reviews also point to the built-in flashlight as an unexpected perk during winter’s dim days. Some say they attach the included wrist strap to their purse and use it as a hands-free flashlight to navigate dark, icy paths.

The current sale price means you could buy two Orastone Rechargeable Hand Warmers for less than $40, and keep one in each pocket or glove. 

Amazon is packed with heated gadgets that will keep you cozy in creative ways this winter. Check out a few more below, including the Venustas heated vest I can personally vouch for as a must-have while working and playing outside during snow days.

Aikoper Portable Space Heater

VanSmaGo Rechargeable Warming Pouch

Ocoopa Magnetic Hand Warmers, 2-Pack

Venustas Softshell Heated Vest