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?
eSIM (e.g., Airalo , Sim Local ). You stay connected as you cross borders without swapping physical cards. should i buy a sim card in europe
Local Physical SIM . Buying a card from a local shop (like Orange or Vodafone ) typically offers the lowest rates and more data for your money. Roaming