For what purpose? Measuring the air around you at home? Well, almost every house has a thermostat, many smart that you can check on your phone or use a voice assistant. The check the temp outside? Do you want to go outside and let the phone acclimate to get a proper reading when again, you can check the weather app and it would be more informative and accurate? Okay, say you’re in a office building and don’t have access to the thermostat and you’re hot. I guess you’ll just be warm for a few minutes as they aren’t going to adjust the thermostat for you, not to mention it would likely take a few minutes to kick in and cool down.

Not to mention, due to the heat of the phone and it being in a pocket against your warm body, it wouldn’t be very accurate unless you put the phone in an idle state for a few minutes and leave it on a counter.