比較ガイド · 2026年6月更新
イタリアローミング vs eSIM
このガイドはイタリアのローミング vs eSIMを比較。キャリアパッケージ: TIM & Vodafone vs travel eSIM and best eSIM Italy.
EU fair-use caps
Even EU SIMs can throttle after heavy data use on longer イタリア stays.
Non-EU visitors pay more
US, UK and other non-EU plans rarely include イタリア data at home rates.
Hidden background data
Roaming on triggers app updates and burns your allowance or triggers fees.
Prepaid eSIM price
Pick GB and days upfront—fixed cost before you land at FCO.
ローミングが高くなる理由
イタリア cities need reliable mobile data for maps, trains and messaging. Non-EU visitors pay travel passes or per-MB rates. EU residents can hit fair-use limits on extended trips.
コスト比較
| 選択肢 | 料金モデル | 注意 |
|---|---|---|
| Home roaming (non-EU) | Daily pass or per-MB | Adds up over 7–14 days in イタリア |
| EU home roaming | Often included with cap | Fair-use throttle after heavy use |
| イタリア旅行eSIM | One-off prepaid (GB + days) | Usually data-only; QR before FCO |
| Airport SIM / local shop | Prepaid in person | Queues, local forms, passport registration |
ローミング料を避ける
- Turn off Data Roaming on your home SIM before you leave.
- Install a prepaid イタリア eSIM on Wi-Fi before your flight.
- Enable the eSIM data line after landing at FCO.
- Keep your home number for SMS on Wi-Fi; do not use it for mobile data.
関連ガイド
FAQ
EU/EEA SIMは原則対象—長期滞在はフェアユース。UK・米国など非EUはフルローミング料金。
EU居住者は上限付き込みのことも。非EUは日額パスがプリペイドeSIMより高くなることも。
ローミングOFF、出発前にイタリア eSIMをインストール、FCO着陸後eSIMでデータ。
はい。オンライン購入、自宅でQR、FCO着陸後にデータON。