Add preferred source Apple has included a barometric pressure sensor in most iPhones since the 2014 iPhone 6, using it to refine elevation data for fitness tracking, location services and third-party apps rather than offering a dedicated barometer tool. Because pressure also shifts with weather, the phone pairs sensor readings with GPS altitude and weather-station…
Since Apple introduced the iPhone 6 and 6 Plus in 2014, most iPhones have included a built-in barometer. The first-generation iPhone SE didn’t get the memo, apparently, and is an exception. Apple explained its inclusion as a means of determining relative elevation changes. Without diving too deeply into atmospheric science, iPhones with barometers detect your elevation…
