[sseppola]

Word! Norwegian living in Oslo here, my iPhone 6 can shut down around 40-50% battery around -5 centigrade if I keep it out for long enough that it cools down (5 mins should do it). Now I always try to keep it warm in my hands and stick it back in my pocket asap, and I always keep it the pocket on my thigh, if I keep it in a pocket without close body contact it cools down as if it was outside.. I've heard something about this being caused by the aluminium covering the back of the phone and it accelerating the transfer of heat. Can't confirm it though, my last phone was an iPhone 4 which was equally terrible in the same environment.