HelloRoam offers San Marino eSIM plans on TIM, Wind, TIM maritime, and Iliad, with unlimited data starting at $2.30 per day. San Marino uses Italian carrier roaming given its landlocked position within Italy, giving full 4G coverage across Monte Titano and all three towers. The cheapest 7-day plan starts at $1.14. Prices verified May 2026.
HelloRoam offers San Marino eSIM plans on TIM, Wind, TIM maritime, and Iliad, with unlimited data starting at $2.30 per day. San Marino uses Italian carrier roaming given its landlocked position within Italy, giving full 4G coverage across Monte Titano and all three towers. The cheapest 7-day plan starts at $1.14. Prices verified May 2026.
All San Marino eSIM plans compared
eSIM provider comparison for San Marino — Prices verified 2026-05-30
プロバイダー
価格（5GB）
通信範囲
評価
こんな方におすすめ
HelloRoam
￥833
TIM, Wind, TIM maritime, Iliad
4.9/5
総合最高
Airalo
￥2,432
200カ国以上
4.5/5
最多渡航先
Holafly
無制限
160カ国
4.2/5
ヘビーユーザー
San Marinoのおすすめトップ3
San Marinoで利用可能な5件のeSIMプランを評価し、確認済み価格・ネットワーク通信範囲・開通速度・アプリ品質を比較しました。 その中から5件が際立っていました。
HelloRoam
コスパ最強
￥833
5GB / 30日間
メリット： 1GBあたりの価格が最安値、高速開通、TIM, Wind, TIM maritime, IliadでのSan Marino通信カバレッジ。 デメリット： 比較的新しいブランドで、Airaloよりコミュニティが小さい。
San Marino uses Italian carrier infrastructure as a landlocked microstate within Italy. TIM (formerly Telecom Italia Mobile) and Wind provide the primary 4G LTE coverage, with Iliad offering additional capacity. TIM Maritime covers edge cases.
All four networks deliver European-standard 4G across the entire country. San Marino has its own telecommunications operator (SMT) for domestic lines, but international visitors use Italian carriers exclusively.
通信範囲の分析
Full 4G coverage across all of San Marino from Italian carrier towers just across the border. The historic center on Monte Titano (Città di San Marino), the Three Towers (Guaita, Cesta, Montale), and the lower towns of Borgo Maggiore and Domagnano all have excellent signal. The Piazza della Libertà, the duty-free shopping district, and all tourist sites maintain strong 4G.
No dead zones exist given the country's small size and flat approach from Italian network infrastructure.
開通方法
Install your eSIM QR code before traveling to Italy (the gateway country for San Marino). TIM and Iliad activate on Italian towers before you even cross into San Marino. No airport formality or local registration needed.
Your eSIM works seamlessly from Rimini through the Italian countryside and into San Marino. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer all support eSIM. Your device must be carrier-unlocked.
データ通信の活用のコツ
San Marino visits are typically day trips from Rimini or the Italian Adriatic coast, averaging 3-6 hours. Most visitors use 200-400 MB total for Google Maps navigation up the switchback road, TripAdvisor for tower ticket pre-booking, and Instagram from the battlements. The 1-day unlimited plan at $2.30 covers a day trip without any usage concern.
The 7-day plan at $1.14 suits travelers adding San Marino as part of a wider Italy itinerary.
San Marinoのプラン評価方法
San Marino offers some of Europe's best eSIM value thanks to Italian carrier infrastructure. Unlimited daily data costs $2.30, with 3-day plans at $6.62 and 7-day unlimited access at $15.46 ($2.21/day). A 14-day plan runs $29.90 and 30 days costs $59.04 ($1.97/day).
Given most San Marino visits are day trips, the 1-day plan at $2.30 or the 7-day Italy trip plan at $15.46 are the most practical choices.
Best eSIM plans for San Marino in 2026
San Marino Unlimited 1Day
TIM (4G)1 有効期限チャージ不可
￥350
0 GB · 1 有効期限
1GBあたり￥350
テザリング可
ネットワークTIM
San Marino Unlimited 3Days
TIM (4G)3 有効期限チャージ不可
￥1,006
0 GB · 3 有効期限
1GBあたり￥1,006
テザリング可
ネットワークTIM
San Marino Unlimited 7Days
TIM (4G)7 有効期限チャージ不可
￥2,350
0 GB · 7 有効期限
1GBあたり￥2,350
テザリング可
ネットワークTIM
San Marino Unlimited 14Days
TIM (4G)14 有効期限チャージ不可
￥4,545
0 GB · 14 有効期限
1GBあたり￥4,545
テザリング可
ネットワークTIM
San Marino Unlimited 30Days
TIM (4G)30 有効期限チャージ不可
￥8,974
0 GB · 30 有効期限
1GBあたり￥8,974
テザリング可
ネットワークTIM
All eSIM plans for San Marino — Prices verified 2026-05-30
プラン
ネットワーク
有効期限
価格
San Marino Unlimited 1Day ⭐
TIM
1d / 0GB
￥350
San Marino Unlimited 3Days
TIM
3d / 0GB
￥1,006
San Marino Unlimited 7Days
TIM
7d / 0GB
￥2,350
San Marino Unlimited 14Days
TIM
14d / 0GB
￥4,545
San Marino Unlimited 30Days
TIM
30d / 0GB
￥8,974
Prices verified: May 2026
Questions about San Marino eSIMs
Do I need a separate eSIM for San Marino or does my Italy eSIM work?+
San Marino uses Italian carrier infrastructure (TIM, Wind, Iliad). A HelloRoam San Marino eSIM covers both Italy transit and the microstate itself. If you already have an Italy eSIM, it will typically work in San Marino as well since the same Italian towers provide coverage. The HelloRoam San Marino plan explicitly covers the country.
What is the best eSIM for a San Marino day trip?+
The 1-day unlimited plan at $2.30 perfectly covers a San Marino day trip from Rimini. It activates on Italian towers before you arrive and works throughout the Monte Titano historic center, Three Towers, and the return journey. The 7-day plan at $15.46 suits travelers doing San Marino as part of a week in northern Italy.
How much does a San Marino eSIM cost?+
San Marino eSIM plans start at $1.14 for 7 days of data, or $2.30 per day for unlimited data. A full week of unlimited access costs $15.46 and 30 days runs $59.04. San Marino is one of Europe's most affordable eSIM destinations.
Which networks does eSIM use in San Marino?+
San Marino eSIM plans connect to TIM, Wind, TIM Maritime, and Iliad — all Italian carriers providing coverage through towers on the Italian side of the border surrounding the microstate. The coverage quality matches Italian standards, meaning consistent 4G across all of San Marino's 61 sq km.
Does eSIM work at the Three Towers of San Marino?+
Yes. All three towers — Guaita (the most famous), Cesta, and Montale — have strong 4G from Italian carrier towers below. Visitors at the Guaita battlements looking out over the Adriatic have reliable connectivity for photos, video calls, and navigation. Signal is stronger at Guaita and Cesta than at the more remote Montale.
How do I get to San Marino from Rimini with an eSIM?+
Rimini is the nearest city with international transport links. The 30-minute drive to San Marino via the SS72 or the Superstrada passes through Italian countryside with full TIM/Iliad 4G throughout. Public buses from Rimini also maintain good connectivity on the route. Your eSIM activates at Rimini Airport and works all the way to San Marino.
Does my phone support eSIM in San Marino?+
iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer support eSIM. Your device must be carrier-unlocked. San Marino uses standard EU frequency bands through Italian carriers, so all modern unlocked smartphones work. Check your unlock status before departing for Europe.
How much data do I need for a San Marino visit?+
A typical San Marino day trip uses 200-500 MB total. Navigation, tower ticket booking, restaurant selection, and social media uploads from the battlements account for most usage. The 1-day unlimited plan at $2.30 covers a day trip with zero usage anxiety. The 7-day plan at $15.46 is more practical as part of a broader Italian trip.
Is there Wi-Fi in San Marino for tourists?+
San Marino offers free public Wi-Fi in Piazza della Libertà and some tourist areas. Hotel and restaurant Wi-Fi is available throughout the historic center. However, the reliable eSIM on Italian 4G is more consistent during walks between the towers and along the battlements where public Wi-Fi doesn't reach.
Can I use a San Marino eSIM in Italy too?+
Yes. The HelloRoam San Marino eSIM runs on Italian carriers (TIM, Iliad, Wind) and activates throughout Italy, not just within San Marino. This makes it practical for travelers combining a San Marino visit with stays in Bologna, Rimini, or other northern Italian cities on the same plan.
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