but is also doubles as a miniature heater that the manufacturer claims can bring its surface temperature up to 48 °C (120 °F) for several hours. You can hold in in your hand, put it in your ...

With USB charging and multiple temperature levels, these compact hand heaters keep my palms and fingers toasty for hours. When their energy is used up, I just top off the power to use them again ...

Beyond space heaters there's plenty of options out there to warm yourself up. Here's six top-rated alternatives to get you feeling toasty.

The Lifesystems rechargeable hand warmer is a step up from your standard gel hand warmer. It charges via USB, offers different heat settings and doubles up as a power pack in a pinch. At RRP it'll ...

While they can be used separately to heat both hands individually (measuring at 2.1cm), they can also be combined into one palm-sized hand heater, providing 360° warmth for both hands.