4400mAh Pocket Warmer Power Bank

By Smart Warmer

$29.95 More on the way


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

11 Reviews (4.8 out of 5 Grommets)

Sorted by Rating

Good but not as good as it claims

1/2/2019 by Sonya

This product gets very warm but doesn’t last near as long as the description. A full charge lasts about 60-90 minutes as a warmer. I ordered two but returned one because it didn’t hold a charge for even 30 minutes. I’ve only used it to charge a phone one time which worked fine.More > < Less

Items 11 to 11 of 11 total

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.