Your iPhone is like the proverbial duck that's calm and cool above the water's surface while furiously paddling underneath. To support your needs and impulses, your device quietly but incessantly uses its built-in antennas to search for three kinds of wireless signals: Wi-Fi, cellular and Bluetooth. When you need to turn off your various iPhone radio antennas, such as on an airline flight, or wish to conserve as much battery juice as possible, you can deactivate them collectively with a mere tap. Then with another tap, you can activate just your Wi-Fi antenna, as needed.
Tap "Settings" on your home screen.
Tap the "Airplane Mode" switch to toggle it "On." This will disable all your wireless features. Your device will display a tiny airplane icon on the upper-left corner to remind you that this setting is active.
Tap the "Wi-Fi" switch to toggle it "On." Your iPhone will start searching for available networks and list them under "Choose a Network." Review your options and then tap the network you'd like to join. Wi-Fi's radio-wave icon will then appear on your device's status bar, next to the airplane icon.
Tips & Warnings
- You can deactivate your wireless signals individually rather than collectively. Tap "Settings," "General," and then "Network" to toggle the "Enable 3G" switch to "Off." Return to your main settings screen by tapping "Settings" on the upper-left corner. Then tap "Location Services" and "Bluetooth" in turn to toggle their switches to "Off."
- In "Airplane Mode," you can't send or receive emails, phone calls and texts, nor surf the Web or tap into cloud-based and online services. You also can't use a Bluetooth accessory or broadcast your location to various apps, such as "Maps." You can, however, work with and enjoy the data, media and games that you previously stored on you device.
- With W-Fi only turned on, you can access the Internet but you can't make calls, text or chat unless you have apps, such as Skype or TextNow, that allow you to do these things over the Internet.
- Photo Credit Justin Sullivan/Getty Images News/Getty Images
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