But, what happens if you’re running out of data? Don’t worry. We have a hack to teach you how to use your phone GPS without ...

An accelerometer measures the acceleration of your phone. It does that on three axes: horizontal, vertical, and forward/backward. It also senses vibration, tilt, and free fall. Being able to calculate ...

A GPS tracker can beam location data straight to your phone, letting you know at a glance if your child is where they're supposed to be or how to find them if you've lost sight of them in a crowd.