For many years, mobile phones received cellular service through a physical SIM (subscriber identity module) card that connected your handset to your phone carrier. These physical SIM cards made it ...

If you’ve ever upgraded from one cell phone to another, you have likely had to swap your SIM card: the tiny chip that pops into a storage slot in your device to connect you to your carrier’s cellular ...

A traditional SIM card is a plastic or PVC card with circuitry that contains the technology required to connect with cellular networks. An eSIM embeds that circuitry directly into the device's ...

SIMs offer faster activation, better security, and easy travel SIMs, but drawbacks include harder transfers, carrier limits, ...

eSIM is slowly gaining traction with top phone brands and should make it easier to switch from one carrier to another—or to add a second line to your phone without heading to a carrier store. I’m one ...