receese

Even with a large sample, temperature and humidity data is useless unless it is ensured to be properly measured (ie outdoors, away from the person, etc). Pressure data is another story, and although it is still low quality it can be smoothed.

That's why I prefer pressureNET to opensignal. Also pressureNET is actually open source, unlike opensignal which sells all your smartphone/personal data to anyone who wants it.

The S5 barometer apparently survives underwater... I see no reason why a temperature/humidity sensor can't be engineered to.