@kieranmch Dug into this more than I should have 😅 iFixit teardown for HomePod mini found a HDC2010 temp/humidity sensor manufacturer lists as accurate to ±0.2℃, ±2% relative humidity; a random Dyson DP04 forum teardown found an SHT31 sensor with the exact same tolerances. I don't think the two should be that far apart after software calibration!