Rechargeable hand warmers · 2-pack

UNIHAND AI Hand Warmers Rechargeable 2-Pack

See the ratings
$17.99for the pair of two
Color: Black

The button opens this color at our retail partner, where you pay and choose delivery. Compare all ten colors.

  • Two warmers in the box. Use one per pocket, or join them back to back into one palm-sized warmer.
  • Three heat levels, 95 to 130 °F. One red light for Low, two for Medium, three for High.
  • Up to 20 hours on Low, 14 on Medium and 8.5 on High.
  • USB-⁠C charging. The cable comes in the box.

Specifications

Specifications of the UNIHAND pair
In the boxTwo hand warmers and one USB-⁠C charging cable
Size of each unit3.46 x 1.84 x 0.79 inches
Weight of each unit0.15 lb
Heat levelsThree: Low, Medium, High, shown by one, two or three red lights
Temperature95 to 130 °F
Up to20 hours on Low, 14 on Medium, 8.5 on High
ChargingUSB-⁠C, cable in the box
UseApart, one per hand or pocket, or joined back to back into one palm-sized warmer
ColorsBlack, White, Champagne, Bronze, Pink, Purple, Sky Blue, Mint Green, Dark Green, Blue Grey

What the lights mean

The row of three small lights next to the orange button shows the heat level: one red light for Low, two for Medium, three for High. The same row also reports the battery and charging state, and the card in the box shows the exact presses for each. Our instructions page walks through a first charge and the 2-in-1 join.

Charging and care

Charge both units with the USB-⁠C cable from the box, indoors and at room temperature, before the first outing. Wipe the shell with a dry cloth and keep the pair out of water. A unit that swells, cracks or gets hot while charging should be unplugged and no longer used.

Buyer ratings

4.6out of 5

10,504 ratings of the UNIHAND pair, counted across every color and printed as they stand.

How 10,504 buyers rated the pair

  • 5 stars80%
  • 4 stars11%
  • 3 stars4%
  • 2 stars2%
  • 1 star3%

91% of buyers give the pair four or five stars. The stars on each color card belong to that color's own product page.

Heat levels

Three levels on one orange button

Pick the level by how much of the day you will sit still. Low runs longest and suits a stand, a desk or a stadium seat. High is for the first cold minutes or a windy lift, then step down. the UNIHAND hand warmer range prints these hours as upper figures: wind and cold air shorten them.

The three heat levels of the UNIHAND pair
LevelRed lightsSurface temperatureUp to
Low 195-⁠107.5 °F20 hours
Medium 2104-⁠118.5 °F14 hours
High 3118.5-⁠130 °F8.5 hours

How to choose a level

Two black UNIHAND warmers glowing on High

Questions

Questions about the UNIHAND pair

What do you get with the UNIHAND AI Hand Warmers?

A pair of rechargeable warmers in the color you pick, plus a USB-⁠C charging cable. Each warmer has one orange button, a row of three lights and its own lithium battery inside. Use them apart or join them into one.

What does the AI chip in your UNIHAND warmer do?

It is a temperature sensor and controller. It senses how warm it is where the shell meets your palm and keeps the heat at the level you selected. It does not learn from you, and it does nothing for your circulation or health.

Will a UNIHAND hand warmer fit your pocket?

Each is 3.46 inches long, 1.84 inches wide and 0.79 inches thick, and weighs about 0.15 lb, roughly 68 g. That fits the front pocket of jeans or golf pants and the palm of a mitten. Joined, the pair is still about the size of your palm.

How many heat levels does the UNIHAND warmer have?

Three. Low covers 95-⁠107.5 °F, Medium covers 104-⁠118.5 °F, and High covers 118.5-⁠130 °F. You step between them with the orange button, and the number of red lights tells you which one is running.

Can you use one UNIHAND unit while the other charges?

Yes. The two warmers have separate batteries, so you can carry one out the door while the other sits on the USB-⁠C cable. On a long day, swap them over at lunch and you leave with a full unit.

Can you hold a UNIHAND warmer with your gloves on?

The shell has a matte, lightly textured surface shaped to the palm, so it does not slide around in a gloved hand. The orange button sits on the face where a thumb can find it. With thick mittens, switch it on before you put them on.

A Blue Grey UNIHAND hand warmer held by an outdoor fire

Still deciding?

See all ten UNIHAND colors side by side

Black to blush pink, champagne to deep green: the same pair, the same three heat levels, the color is yours.