What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...

Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is a seasoned multimedia journalist with more than a decade's worth of experience producing stories for ...

To remove the SIM card from your iPhone, you'll need to eject the SIM card tray with a special tool or paperclip.

You're probably already familiar with the SIM card, a tiny chip in your phone that connects it to your cell phone carrier of choice. For years, this chip was on a physical card that you could swap in ...

大eSIM時代がやってくる。 いよいよ発売となるiPhone 17シリーズで僕らが気になっていたポイントが｢eSIM化｣。 多くのスマホには通信事業者（ドコモとかauとか）の契約者情報に紐ついた｢SIMカード｣がセットされています。電話やデータ通信できるのも ...