That's about preventing water to come in via gaps in ports etc. Condensation is a different beast - unless your phone has literal vacuum, 0% humidity air or so

That's about preventing water to come in via gaps in ports etc. Condensation is a different beast - unless your phone has literal vacuum, 0% humidity air or some other inert gas inside of it, in some thermal shock condensation gradient would form through it. Electronic circuits themselves would have to be protected somehow, pins of processors etc. We are not there yet, not with cheap disposable electronics like iphones or androids (compared to say military or deep diving or space-grade electronics where everything is built for massive redundancy and abuse from scratch)