Query reg operating temperature

That’s not suitable for people, either. No Lithium-powered phone can operate in those temperatures.

It’s not an issue for a couple of reasons. The first is that your hands are never as warm as your body’s core temperature. That’s why the most accurate temperature readings medically are taken using a probe inserted into a body cavity. Even the popular IR forehead thermometers don’t register the temperature on the surface; they measure the temperature of the blood flow under your skin and adjust for the loss through your skin. To see this take a thermometer and hold it in your closed fist for a few minutes. The other reason is that your hand isn’t large enough to completely enclose the phone; most of it is still exposed to the air, so it’s air temperature that actually matters.