Can you use a SIM card in any phone?
No, you cannot use a SIM card in just any phone. Some phones may be compatible with a standard SIM card, however, there are a few factors that could prevent this from being possible.
If your phone is not unlocked, meaning if it's tied to a specific carrier, then other SIM cards will not work.
There are also several sizes of SIM cards (nano, micro, and standard), meaning that your phone is dependent on the size of its SIM card slot.
Sometimes phones are designed for a specific type of network (GSM or CDMA), although most newer phones maintain functionality on both types of network.