This is nothing new right? I learned the first day I went snowboarding with my iphone that it was useless to bring with me... at least without some thick rubber case.
Yeah I went skiing with my new Pixel 2 last Christmas and couldn't get it to stay on long enough to record a video. Doesn't seem very deveice specific. My sister had better luck on her older iPhone, but on the coldest day neither of us could use our phones outside for very long.
Same here. Depending on the temperature, I have to move it to a more internal pocket to keep the battery warm. Lithium batteries do not like cold.
Just put your phone in an inside jacket pocket, it'll be fine.