Back View - Samsung GALAXY S4 User Manual

7. Back key redisplays the previous screen or clears
entries.
8. Display shows all the information needed to operate
your phone, such as the connection status, received
signal strength, phone battery level, and time.
9. Front Facing Camera allows you to take pictures while
facing the screen and allows you to video conference.
10. Proximity Sensor detects how close an object is to the
surface of the screen. This is typically used to detect
when your face is pressed up against the screen, such
as during a phone call.
• While talking on the phone, the sensor detects talk activity and
locks the keypad to prevent accidental key presses.
11. Light Sensor lets you use the ambient light level to
adjust the screen brightness/contrast. This sensor
decreases screen brightness in dim light.
• In a bright light condition (outdoors), the sensors cause the
device to increase the brightness and contrast for better
viewing.
• In dim light conditions, the device increases the screen
brightness to compensate.
DRAFT
Internal Use Only
12. Receiver allows you to hear the other caller and the
different ring tones or sounds offered by your device.
13. Air Gestures Sensor used to detect Air View and Air
Gesture motions.

Back View

The following illustration shows the external elements of your
Device:
1. microSD Card Slot (internal) allows you use a microSD
card to expand the memory of your device.
2. External speaker allows you to hear ringers, music, and
other sounds offered by your phone.
Understanding Your Device 29