@mdosch@mdosch.de Right. I can only last about 15–25 minutes in a 80°C sauna. An ambient temperature of 90°F (32°C) is also unpleasant, but not nearly as bad. I’ll use my iPad indoors when it’s 90°F during the peak of the heat of the day, but I wouldn’t want to take it into a 90°C sauna.