iPhone SE is a single SIM phone, but if you don't want to go through the hassle, you can also buy an unlocked SIM-free version too.

If you have a iPhone 13 or older, your device still has a physical SIM card. Here's a guide on how to remove it.

When the iPhone's SIM junctor reader is damaged, your iPhone can no longer read the SIM card, and you need to replace the junctor reader.

If you want to upgrade your iPad to have 3G/4G capabilities, you need to equip it with a SIM card. Our beginners' tutorial explains where to get the right SIM card, and how to do install it.

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

Regular and Micro-SIM cards are too big for the iPad or iPhone, but this trick enables you to cut down a SIM card to a Nano-SIM so it fits into an iPhone or iPad.