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San Marino · 4networks · Updated May 2026

Roaming Fees in San Marino: What You'll Pay in 2026

4 carriers compared · Updated May 2026 · By Roaming Experts

$83+
You save
per 7-day trip to San Marino
AT&T $84.00 · eSIM $1.14

Short Answer:

AT&T charges $12/day for roaming in San Marino. A 7-day trip costs $84.00 in carrier fees.HelloRoam covers that same week for $1.14 total1GB on local networks. You save $82.86 with HelloRoam. No contract changes needed. Prices verified May 2026.

The pain

What carriers charge in San Marino

Daily rate, total cost, and what you actually get.

US carrier roaming costs in San Marino, verified May 2026
CarrierDaily7-day14-dayDataVerdict
AT&T
Day Pass
$12.00$84.00$168.002GB high-speed/dayExpensive
Verizon
TravelPass
$12.00$84.00$168.005GB high-speed/dayExpensive
T-Mobile
Magenta
$0.00$0.00$0.00Unlimited at 2G (128kbps)Free but slow
T-Mobile
International Pass
$10.00$70.00$140.002GB high-speed/dayCostly

Prices verified May 28, 2026. Updated weekly from provider websites.

Unlimited option

Save even more with unlimited data in San Marino

Unlimited daily data. Longer trips unlock bigger discounts.

Unlimited Daily Data for San Marino
Unlimited daily data. Longer stays unlock bigger discounts.
Up to 18% off
Unlimited eSIM pricing tiers vs carrier roaming for San Marino, verified May 2026
DurationeSIM TotalPer DayAT&T CostYou Save
1 day$2.30$2.30$12.00$9.70(81%)
3 days8% off$6.62$2.21$36.00$29.38(82%)
7 days8% off$15.46$2.21$84.00$68.54(82%)
14 days11% off$29.90$2.14$168.00$138.10(82%)
30 days18% off$59.04$1.97$360.00$300.96(84%)
Unlimited daily data at full LTE/5G speed. AT&T comparison uses $12/day International Day Pass rate. Prices verified May 2026.
The relief

The eSIM alternative for San Marino

Verified providers. Same data, fraction of the cost.

HelloRoam ranks second overall on our savings-weighted rubric, with 204+ carrier networks across 185+ countries at the lowest verified per-GB rate.

Winner
HelloRoam logo
HelloRoam
San Marino · 1GB · 7 days
$1.14
$0.16 / day
  • 204+ carrier networks worldwide
  • 180-day refund policy
  • Instant QR install
Get HelloRoam for $1.14 (opens in new tab)
Holafly logo
Holafly
San Marino · Unlimited · 30 days
$57.00
$1.90 / day
  • Instant QR install
  • 5G where available
  • Keep your home number
View Holafly (opens in new tab)
Saily logo
Saily
San Marino · 10GB · 30 days
$18.99
$0.63 / day
  • Instant QR install
  • 5G where available
  • Keep your home number
View Saily (opens in new tab)
The math

Savings breakdown for San Marino

Carrier cost vs eSIM for different trip lengths.

eSIM vs carrier roaming savings for San Marino, verified May 2026
Trip LengthAT&T CosteSIM CostYou Save
7 days$84.00$1.14$82.86
14 days$168.00$1.14$166.86
30 days$360.00$1.14$358.86
By carrier

Carrier deep-dives for San Marino

AT&T in San Marino

AT&T's International Day Pass connects your phone to TIM, WindTre. You pay $12 every day your device touches the network in San Marino — background app syncs count. There is no daily cap on the charge.

Activation fee
$0
Data
Unlimited
Networks
TIM, WindTre
Verdict
Expensive

T-Mobile in San Marino

T-Mobile Magenta includes free roaming in San Marino at 2G speeds. Usable for maps and plain text. Painful for photos, video, or any real browsing. Go5G Plus includes 5GB high-speed free. The $10/day International Pass unlocks LTE.

Base speed
128kbps (2G)
Intl Pass
$10/day for LTE
Networks
TIM, WindTre
Verdict
Free but slow

Verizon in San Marino

Verizon TravelPass is $12/day on TIM, WindTre. After 5GB at LTE speed, your connection reduces to 3G. Charged any day you use service in San Marino — even one background app sync. Verizon auto-enrolls TravelPass; opt out in the My Verizon app before you depart.

Speed change at
5GB/day
Auto-enroll
Yes (opt-out)
Networks
TIM, WindTre
Verdict
Expensive
San Marino network context

AT&T's International Day Pass connects your phone to TIM, WindTre, Iliad. You pay $12 every day your device touches the network — background app syncs count. T-Mobile Magenta includes free roaming in San Marino at 128 kbps (2G speeds). a local eSIM runs significantly faster. Verizon TravelPass is $12/day on TIM, WindTre, Iliad. High-speed data is capped at 5GB — after that your connection drops to 3G. Verizon auto-enrolls TravelPass; you must opt out in the app before departure.

Bill shock

Real roaming bill scenarios in San Marino

What carrier roaming actually costs travelers.

7-day trip with AT&T
$84.00 carrier$1.14 eSIM

AT&T International Day Pass charges $12/day in San Marino. Over 7 days that is $84.00 — even if your phone only syncs email in the background.

7-day trip with Verizon
$84.00 carrier$1.14 eSIM

Verizon TravelPass auto-enrolls your line at $12/day. A 7-day trip costs $84.00, and high-speed data is capped at 5 GB.

7-day trip with T-Mobile upgrade
$70.00 carrier$1.14 eSIM

T-Mobile's free tier is 128 kbps — unusable for maps or video. The $10/day speed upgrade in San Marino adds up to $70.00 over 7 days.

Two-week extended trip (AT&T)
$168.00 carrier$1.14 eSIM

A 14-day trip pushes AT&T Day Pass to $168.00. AT&T caps charges at $120/month (10 days), so the remaining days are included — but you still pay $120 minimum.

Watch out

Roaming traps in San Marino

Hidden charges and gotchas that catch travelers off guard.

high risk
Background app sync

Your phone syncs email, photos, and apps in the background the moment it connects in San Marino. Each sync triggers a full day's roaming charge on AT&T and Verizon.

Enable airplane mode before landing, then activate your eSIM.

high risk
Verizon auto-enrollment

Verizon auto-enrolls TravelPass when your phone connects in San Marino. You must opt out in the My Verizon app before departure.

Disable TravelPass in the My Verizon app before your trip.

medium risk
iMessage SMS fallback

When iMessage cannot reach Apple servers it falls back to SMS. One international SMS can cost $0.50-$1.00 and triggers a roaming day charge.

Turn off Send as SMS in Settings > Messages before departure.

medium risk
Layover data charge

A brief layover or transit stop in San Marino can trigger a full $12 day charge if your phone connects to a local tower.

Keep airplane mode on during layovers unless you need data.

Verdict

eSIM or carrier roaming for San Marino?

The bottom line on cost and speed.

A travel eSIM wins on both cost and speed for San Marino. The cheapest verified plan delivers 1GB for $1.14 — that is 99% less than AT&T's $84.00 over 7 days.

You save $82.86 on a single trip. No daily fees, no data caps beyond your plan allowance, no auto-enrollment surprises. Install before departure, activate on landing, done.

Family math

Family roaming costs in San Marino

Per-person charges multiply fast for families.

Family roaming costs for a 7-day trip to San Marino, verified May 2026
CarrierFamily of 2Family of 4eSIM (4)Savings (4)
AT&T Day Pass$168.00$336.00$4.56$331.44
Verizon TravelPass$168.00$336.00$4.56$331.44
T-Mobile Upgrade$140.00$280.00$4.56$275.44
All options

Every way to get online in San Marino

Ranked from cheapest to most expensive.

#1Travel eSIM$1.14 totalBest

Prepaid data on local networks in San Marino. Install before departure, activate on arrival. Full LTE/5G speed.

#2Hotel / cafe Wi-FiFree

Wi-Fi availability varies in San Marino. Not reliable for navigation or ride-hailing on the move.

#3T-Mobile free tierIncluded

128 kbps data — technically free but practically unusable for maps, photos, or video.

#4AT&T International Day Pass$84.00 (7 days)

$12/day on local carriers. Background syncs trigger a full day charge.

#5Verizon TravelPass$84.00 (7 days)

$12/day with 5 GB high-speed cap. Auto-enrolls unless you opt out.

Quick answer

San Marino roaming charges at a glance

Roaming in San Marino costs £2.00 to $12.00 per day on major carriers. A 7-day trip adds $84.00 in roaming fees before you send a single photo.

T-Mobile is the cheapest carrier option for San Marino, including roaming at no extra charge with Unlimited at 2G.

Verizon charges the most at $12.00/day. A 14-day trip costs $168.00 in roaming fees alone.

A travel eSIM for San Marino starts at $1.14 total, covering the entire trip at local network speeds with no daily charges.

Local value

Savings in EUR

What your eSIM saving means in San Marino's local currency.

Carrier roaming fees are billed in USD and feel abstract until converted. The $82.86 you save on a 7-day trip with a travel eSIM — compared to AT&T — is real money. That's roughly the cost of two decent meals, a day tour, or several taxi rides in San Marino. Your bank converts the $1.14 eSIM charge to € (EUR) at the spot rate with no markup; carrier fees hit your bill weeks later, often with additional currency conversion charges from your carrier.

Currency: € EUR
eSIM cost (USD): $1.14
AT&T 7-day (USD): $84.00
How to switch

How to avoid roaming charges in San Marino

  1. 1
    Put your phone in airplane mode before takeoff.
    Prevents auto-enrollment in carrier roaming passes during the flight or on landing.
  2. 2
    Buy a travel eSIM for San Marino ($1.14 typical).
    Travel eSIM providers (HelloRoam, Airalo, and Saily) sell pre-purchased plans with QR-code activation.
  3. 3
    Install the eSIM and label it.
    Install in airplane mode. Label the line "San Marino — data only." Keep your carrier line for SMS.
  4. 4
    Enable the eSIM line for data after landing.
    Switch default data to the eSIM. Leave your carrier line off for data, on for incoming SMS. Emergency number in San Marino: 112/113/115/118.
  5. 5
    Back home: switch data back to your carrier.
    The eSIM stays available for your next trip. No re-purchase needed if data remains.
Data tips

Data usage tips for San Marino

Download offline maps before you go
Google Maps and Apple Maps both support offline areas. Download your destination city to avoid burning data on navigation.
Use Wi-Fi for large downloads and video
Hotels, cafes, and airports have Wi-Fi. Save your eSIM data for when you actually need mobile connectivity.
Turn off automatic app updates
iOS and Android both update apps in the background. Disable auto-updates over cellular to keep data usage predictable.
Compress photos before uploading
Social media apps upload full-resolution photos by default. Switch to lower quality uploads or wait for Wi-Fi.
Calculate

Your exact savings for San Marino

Pick your carrier, trip length, and data usage.

1Your carrier
2Destination
3Trip length
4Data usage
You save
$74.60
on a 7-day trip to Japan
AT&T · 7d
$84.00
Best eSIM · moderate usage
$9.40
FAQ

Common San Marino roaming questions

What is the emergency number in San Marino?

The emergency number in San Marino is 112/113/115/118. Emergency calls work without a SIM card, eSIM, or active data plan. Your phone will connect to the strongest available signal from local carriers. Save 112/113/115/118 in your phone contacts before departure. If you have an active travel eSIM, emergency calls route through the eSIM's network for the best signal quality.

Which network does my phone connect to when roaming in San Marino?

When roaming in San Marino, your US or UK carrier connects you to partner networks including TIM, WindTre, Iliad. San Marino has 4 carrier networks. A travel eSIM connects to the same networks at the same or better speed. The difference is cost: carrier roaming charges $12/day on AT&T while the eSIM charges $1.14 total. You get the same towers, the same coverage, and the same download speeds.

Are there any connectivity quirks or restrictions in San Marino?

San Marino has a few connectivity notes to be aware of: Uses Italian networks — Italian SIMs work without issues. Surrounded by Italy. A travel eSIM handles these conditions the same as carrier roaming. Check your eSIM provider's coverage page for any San Marino-specific notes.

How much does AT&T International Day Pass cost in San Marino?

AT&T International Day Pass costs $12 per day in San Marino. A 7-day trip costs $84.00 in roaming fees. The pass includes 2GB of high-speed data per 24-hour period, then speeds drop to 128 kbps. The charge triggers any day your phone connects to a network, including background syncs.

How much does T-Mobile International Pass cost for San Marino?

T-Mobile International Pass costs $10/day in San Marino. A 7-day trip costs $70.00. A 14-day trip costs $140.00. T-Mobile raised this price from $5/day to $10/day in 2026. The pass includes 2GB of high-speed data per day, then speeds drop to 256 kbps. A travel eSIM for San Marino costs $1.14 for an entire week.

Is Verizon's Monthly International Plan better for long trips to San Marino?

Verizon's Monthly International Plan costs $100/month with 20GB of data. For trips longer than 8 days to San Marino, it costs less than daily TravelPass charges. A 14-day trip on TravelPass costs $168.00 versus $100 on the monthly plan. A travel eSIM for San Marino still costs $1.14 for the same period, making it the cheapest option by a wide margin.

Do I still get free EU roaming with Vodafone UK in San Marino?

Vodafone customers who signed their contract before August 2021 may still have free EU roaming under legacy terms. Customers on newer plans pay GBP2.00/day in San Marino. Check your plan start date in the My Vodafone app. Vodafone also offers 8-day EU passes (GBP15) and 15-day EU passes (GBP20) that reduce the daily cost.

Can I use a travel eSIM for San Marino on an iPad or tablet?

Yes, if your iPad or tablet supports eSIM. iPad Pro (3rd gen and newer), iPad Air (3rd gen and newer), iPad mini (5th gen and newer), and iPad (7th gen and newer) all support eSIM. Android tablets with eSIM support include the Samsung Galaxy Tab S series. Install the travel eSIM on your tablet for data access in San Marino without needing a separate hotspot or tethering from your phone.

What happens if I run out of eSIM data in San Marino?

When your eSIM data runs out in San Marino, your data connection stops. You will not incur additional charges because travel eSIMs are prepaid. To restore connectivity, purchase a new eSIM plan from your provider's app (using hotel Wi-Fi), or switch to a different eSIM provider. Most providers deliver new eSIM plans within minutes. Your carrier SIM continues to work for calls and SMS regardless of your eSIM data status.

How do I set up a travel eSIM for San Marino on iPhone?

Open Settings > Cellular > Add eSIM > Use QR Code. Scan the QR code from your eSIM provider. Label the new line "San Marino Data." After landing in San Marino, go to Settings > Cellular > Cellular Data and select the eSIM as your default data line. Keep your carrier line active for calls and SMS but disable its cellular data. The setup takes under 5 minutes.
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