When Apple released the first iphone, it had only two sensors (Accelerometer and Proximity sensors). It’s been six years down the road and it seems the competition has already caught up and surpassed Apple. With the Galaxy s4, Samsung introduces a slew of 9 sensors and the hidden innovation each carries.
Samsung officially published the graphic above featuring all the tech inside the phone. The geo-magnetic sensor, the barometer, the temperature and humidity sensor are all in, in addition to the light, proximity and other sensors available on all phones. All the 9 sensors will allow the phone to recognize both user interaction as well as the environment the phone is situated in. Click the source link for details on each