Before we explain which size SIM your iPhone requires, we thought we’d explain a little bit about the different sizes available. Let’s start off with the full-size SIM card, measuring in at 85 ...

The full-size SIM was the first format of SIM cards, issued all the way back in the 1990s. It was the size of a credit card, although the total area of the gold-colored contacts was the same as we ...

The diagram above shows how the SIM card has reduced in size over the years The first to appear was the full-size or 1FF (1st Form Factor), the size of a credit card (85.60 mm × 53.98 mm × 0.76 mm).

Not too long ago, T-Mobile was offering free pre-paid SIM cards, plus free shipping. The deal is now back on, so if you were thinking of making a switch off of your current carrier, be sure to hop ...

Mini-SIM: Because the full-size SIM is no longer used, these days this is often thought of as the full or standard SIM. It measures 25x15mm and the contact surface is surrounded by a large segment ...

The Integrated SIM or iSIM is the next generation of the SIM card integrated within the system-on-chip (SoC) of a smartphone, smart wearable, or any IoT device.