For most travelers in 2026, a is the best balance of cost and convenience, while a local physical SIM remains the cheapest option for long-term stays in a single country. Quick Decision Guide
Roaming . Only recommended if your home carrier (like T-Mobile) includes free or very cheap international data. Key Benefits of a European SIM Should You Buy a Local Sim Card When You Travel? should i buy a sim card in europe
Buying a SIM card or eSIM for Europe is almost always better than relying on international roaming, which can lead to "bill shock" from high daily fees or per-MB charges. For most travelers in 2026, a is the