A SIM (Subscriber Identity Module) is a tiny bit of circuitry that uniquely identifies your cellular modem in a phone, tablet, or other device to nearby cellular networks to allow access for voice, ...

Apple included a number of satellite-based features in its latest iPhone models to help users keep contact in an emergency. Here's what they are, and how to use them if you have no signal. Major ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Posts from this topic will be added to your daily email digest and your homepage feed. Use your iPhone’s camera to identify objects and answer questions. Use your iPhone’s camera to identify objects ...

In the realm of smartphone features, the Always On Display (AOD) stands out for its convenience and practicality, especially for users who like to glance at their device for notifications, the time, ...