If you’re like most people, you probably have an iPhone 4s with a built-in sim card. But if you don’t, there are a few ways to get a sim card into your iPhone 4s. The first way is to buy one from an online store. The second way is to use a third-party service like AppleCare+. The third way is to buy one from someone who sells iPhones or iPads with sim cards pre-installed. The fourth and final way is to use a computer or phone emulator. This will allow you to insert the sim card into your iPhone 4s and use it as if it was an original device.
