What Does Airplane Mode Do, and Is It Really Necessary?

Airplane mode disables a device’s cellular radio, Wi-Fi, and Bluetooth—all the wireless transmission functions. But many airplanes now offer in-flight Wi-Fi, and cellular access may be coming to planes soon—so where does that leave airplane mode? Even if you never fly, airplane mode offers a quick way to disable many of your device’s battery-draining radios. … Continue reading What Does Airplane Mode Do, and Is It Really Necessary?