iPhone 4: Which SIM card do I need?

In contrast to older smartphones, the iPhone 4 requires a special SIM card. You can find out which this is and how you can still use your old SIM card in this practical tip.

Which SIM card fits the iPhone 4?

The iPhone 4 is the first Apple smartphone that no longer needs the classic mini SIM card. You need the smaller micro SIM instead.

• In another practical tip, we will show you how to convert your existing mini SIM into a micro SIM.
• Alternatively, you can also contact your mobile operator. Here you can usually request a suitable micro SIM card free of charge.

Performance problems often occur, especially with older devices such as the iPhone 4. In another practical tip, we will therefore show you how to make your iPhone faster.