What to do about a SIM card in Istanbul if your phone doesn't support eSIM?

If your phone supports eSIM, it's more convenient to set it up in advance at home via a dedicated eSIM service — no need to visit a store after landing in Istanbul.

SIM cards bought at Istanbul airport are usually more expensive than getting an eSIM online in advance.

If dealing with eSIM setup and payment feels too complicated, some travelers consider buying a new eSIM-compatible phone — but this is more of an extreme option than a necessary step.

For phones without eSIM support, there are two main options: try a physical eSIM adapter with a local plan, or simply activate roaming with your home carrier for the trip to Istanbul.