The new Samsung Galaxy S4 has something no other phone has ever had before—weather sensors. Older devices like the Galaxy Nexus, S3, Note, and Note 2 do have a atmospheric pressure sensor, aka a barometer. However, they do not have a thermometer or hygrometer like the GS4 does, which measures ambient temperature and humidity.
What Can You Do with Them?
As intuitive as the sensors could be, their function has actually been buried inside the S Health app on your GS4. The app uses these measurements to tell you if you're in your "comfort zone" or not, and the device uses the ISO 7730 standard... more