Best SIM and eSIM for Italy: data plans, Wi-Fi and phone tips

Decide by trip length and whether you need an Italian number. Under two weeks, most travellers do best with a travel eSIM bought and installed at home: it activates when you land, keeps your usual number for WhatsApp, and avoids a shop visit. Two weeks or more, or if you need an Italian number for bookings, deliveries or a local bank, a prepaid SIM from TIM, Vodafone, WindTre or Iliad is usually cheaper per gigabyte.

If you already hold an EU or EEA SIM, you can roam in Italy at your home prices under EU rules, which is often the cheapest option of all. UK SIMs are a separate case: some operators include Italy, some charge daily. Check your own plan before buying anything.

Rules for buying a SIM are the same for everyone; what changes is roaming and how busy the networks are. July and August, plus the Christmas and Easter weeks, are the busiest periods, so airport and city-centre phone shops have longer queues. Buying online before you fly removes that step entirely.

Before you fly: check your phone is unlocked, then buy an Italy eSIM online and install it at home over Wi-Fi. Turn the eSIM line on when you land and keep your home SIM active for calls and messages. Data-only eSIMs do not give you an Italian number, which is fine for maps, trains and WhatsApp.

If you prefer a local SIM, go to a TIM, Vodafone, WindTre or Iliad shop in a city rather than the airport, where prices are higher. Bring your passport; the shop issues the codice fiscale you need to register the line. Ask the assistant to activate data and to confirm the plan's monthly cost and renewal date. Airport kiosks and tabacchi also sell SIMs, but staff may not speak English and top-up terms vary.

Top-ups: buy recharge credit at tabacchi, in phone shops or in the operator's app. Keep the SIM in the phone for the whole stay; removing it can complicate reactivation.

Free Wi-Fi is common in hotels, many bars and restaurants, and on Frecciarossa and Italo high-speed trains. Some city Wi-Fi networks ask for a phone number and send a login code by SMS, which is awkward if you have no working Italian number; a data plan avoids the problem. Coverage on the mainland is good, including on most train routes. Mountain areas in the Alps and Apennines, and some smaller islands, have weaker signal, so download offline maps before hiking or taking a ferry.

The Vatican and San Marino sit inside or beside Italian networks and are normally covered, but check whether your roaming plan counts San Marino as outside the EU, which can trigger extra charges.

Prices and plan terms change often, so treat any figure here as a 2026 estimate and confirm in the shop or app. EU roaming is meant for normal travel use; long stays on a foreign SIM can attract a surcharge under fair-use rules. If you keep your home number active, watch data roaming on that line so you do not pay for two plans at once. Emergency number across Italy is 112.

Facts here follow the Italy country page and official operator and EU roaming information. Plan prices and coverage are marked check where they can change; verified_on is null until an editor confirms them.