4400mAh Pocket Warmer Power Bank

By Smart Warmer

Add to Wishlist


This pocket-sized two-in-one is a hand warmer phone charger. Recharge a phone up to two times, or keep hands warm for anywhere between four to six hours.

  • Materials: Aluminum shell, plastic, lithium-ion battery, and electrical components
  • Includes hand-warming power-bank and USB charging adapter cord
  • Weather-resistant construction
  • Stays warm up to 6 hours on single charge
  • Warms to a safe temperature of 112-115 degrees Fahrenheit
  • USB adapter cord included
  • Charges your mobile devices
  • Enough power to provide two full smartphone charges
  • Made in China
  • Dimensions: 1.63" x 0.88" x 4"
  • Weight: 0.3 lb.

5 Reviews (5 out of 5 Grommets)

Sorted by Rating

Awesome product


I used it all winter to warm my hands and it worked great. My wife used it recently to charge her phone and it was a fast charge compared to other devicesMore > < Less


Unique gift idea.


I got these for my cold handed family members. Works as a charger too, a bonus feature. They really like them.


smart warmer


I bought this for my wife, her hands are always cold and I know because she is always trying to warm them up on me, don't take me wrong I like her touching me, but not on my side with freezing hands but more importantly she loves it and uses it. Thanks for the product.More > < Less


Smart Warmer


I have both severe arthritis and Raynaud’s disease in both hands. Both are relieved with heat and these warmers do an exceptional job.


How Convenience


I two- in- one. I live in Wisconsin where we have cold winters. It is nice to have a hand warmer on me and a cellphone charger. But I hated having to carry so many things on me. Well, I don't have to with this item anymore. Love it.More > < Less

5 Item(s)

Back-up battery life—and warmth.

About Smart Warmer

Hands-On Warmth

Folks on the move will appreciate Smart Warmer’s two must-have functions. This hand warmer phone charger does both jobs in a pocket-sized design.

Whether you use it for a warm boost during commutes, at sporting events, or as a power bank to recharge your phone, the combined functionality makes this two-in-one problem solver great to keep handy.

The 4400 mAh Smart Warmer charges a phone twice or warms your hands for around four to six hours (not both at the same time). The same goes for the 2000 mAh battery, which provides one charge or three to four hours of toasty goodness.

Even though you can’t use the charging and warming functions at the same time, the device stays warm for a while after you turn it off, so you still benefit from the heat.

It’s a simple (but smart) way to power up—and warm up—in one small device.