eSIM St Martin from €0.99

HelloRoam is a global eSIM provider offering instant mobile data in 185+ countries. Buy prepaid travel eSIM plans with no extra fees, no contracts, and instant activation on any eSIM-compatible device.

St Martin eSIM card data plans for international travel

Saint Martin eSIM coverage on local networks

Cheap eSIM for St Martin, starting from €0.99. Local 4G LTE and 5G data on top carrier networks in St Martin. Works on all eSIM compatible phones.

St Martin splits neatly into French Saint-Martin and Dutch Sint Maarten, and finding a SIM card that covers both sides without roaming is tricky on arrival. An eSIM in St Martin from HelloRoam starts at €0.99 and covers both sides of the island on Caribbean networks. Activate by QR at home before your flight from Dublin. No airport kiosk needed, no roaming charges, no contract. GDPR-compliant checkout, 180-day refund guarantee.

eSIM St Martin plans start at €0.99 on Orange networks covering both the French and Dutch sides of the island. Activate before you fly. No roaming fees from your Irish provider. 180-day refund guarantee on every plan.

Saint Martin prepaid data plans for Irish travellers

Number of days

More days, lower price per day!

Number of eSIMs

How many travellers?

1eSIM

Total

€1.96USD

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Install your eSIM anytime. Your plan starts the moment your device connects to a local network at your destination.

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A St Martin eSIM from HelloRoam starts at €0.99 across 204+ carrier networks in 185+ countries. Activate via QR code in under two minutes on any eSIM compatible phone. Your Three Ireland, Vodafone IE, or Eir number stays active on dual SIM.

195+
local networks
5G
5G support
2 minutes
to activate

Last updatedMay 2026

Saint Martin eSIM coverage on local networks

Cheap eSIM for St Martin, starting from €0.99. Local 4G LTE and 5G data on top carrier networks in St Martin. Works on all eSIM compatible phones. St Martin splits neatly into French Saint-Martin and Dutch Sint Maarten, and finding a SIM card that covers both sides without roaming is tricky on arrival. An eSIM in St Martin from HelloRoam starts at €0.99 and covers both sides of the island on Caribbean networks. Activate by QR at home before your flight from Dublin. No airport kiosk needed, no roaming charges, no contract. GDPR-compliant checkout, 180-day refund guarantee.

St Martin eSIM with fast 5G coverage

HelloRoam offers eSIM plans for Saint Martin (French side) starting from €0.99. Connect on 4G LTE through Orange and Digicel. Your Irish carrier's international roaming charges apply in Saint Martin (French side). A HelloRoam eSIM costs far less than daily roaming add-ons from Eir, Three Ireland, or Vodafone Ireland. Activate before your flight from Dublin Airport and connect on arrival at Princess Juliana International Airport (Sint Maarten) or Grand Case Airport.

Plans start at €0.99 with 5G speeds
Coverage from Orange
Instant activation in under 2 minutes
180-day money-back guarantee
St Martin coverage across major cities

Network: 5G
Plans From: €0.99
Activation: Under 2 min
Guarantee: 180 days

Trip changed? No bother, we have got you sorted.

Plans change, and that is no bother at all. With HelloRoam, you can request a full refund for your eSIM within 180 days of purchase.

Learn more about our refund policy

HelloRoam St Martin eSIM vs Three Ireland, Vodafone IE and Eir roaming

Comparing eSIM vs a travel SIM card for St Martin? Eir charges up to €5.99/day for Worldwide Roaming, Vodafone IE up to €6.99/day for Global Roaming, and Three Ireland applies daily charges outside its Go Roam zone. Skip the airport SIM counter at Dublin Terminal 1 and get a prepaid eSIM from €0.99 with instant QR activation and a six-month money-back guarantee.

HelloRoam St Martin eSIM vs Three Ireland, Vodafone IE and Eir roaming
Feature		Irish carrier roaming add-on	Limited data eSIM
180-day refund policy
24/7 live chat support
€0 activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium St Martin carrier networks

Why Travellers from Ireland Use HelloRoam e-sim for St Martin

HelloRoam vs Other eSIM Providers for St Martin

eSIM provider reviews from Irish travellers consistently highlight the 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers on the things that matter most for your St Martin holiday.

Feature comparison
Feature comparison		Airalo	Holafly	Nomad	Saily	Ubigi
180-day refund policy
24/7 live chat support
€0 activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium St Martin carrier networks
Own branded carrier identity (SPN)

St Martin — mobile connectivity coverage

Mobile connectivity guide for Saint Martin (French side)

Saint Martin (French side) has 4G LTE coverage through Orange and Digicel across Marigot and the main populated areas. Your Irish carrier's international roaming charges apply in Saint Martin (French side).

A HelloRoam eSIM costs far less than daily roaming add-ons from Eir, Three Ireland, or Vodafone Ireland. A HelloRoam eSIM means you arrive at Princess Juliana International Airport (Sint Maarten) or Grand Case Airport already connected without hunting for a SIM card. Plans start at €0.99.

HelloRoam connects to Orange 5G in St Martin
4G LTE coverage in Marigot and main tourist areas
Connect on Orange and Digicel
Activate before your flight from Dublin

eSIM Travel Tips for St Martin

Sort your eSIM before you leave Dublin
Buy your HelloRoam eSIM for Saint Martin (French side) at home, scan the QR code over Wi-Fi, and switch on data when you land at Princess Juliana International Airport (Sint Maarten) or Grand Case Airport. You step off the plane already connected on local 4G LTE. No queuing at airport telecom shops.
Keep your Irish number live
On a dual-SIM phone, leave your Three Ireland, Vodafone Ireland, Eir, or GoMo SIM active for calls. Use HelloRoam for data in Saint Martin (French side). People back home can still ring your Irish number.
Download offline maps before you travel
Save Google Maps or Maps.me for Saint Martin (French side) offline before you fly. Offline navigation saves data and keeps working where signal is patchy. It is a handy backup when you arrive and need directions.
Watch your data usage
The HelloRoam app shows your balance in real time. You get alerts at 80% and 95% usage. Top up inside the app if you need more data in Saint Martin (French side), no reinstall needed.
Save emergency numbers offline
The emergency number in most countries is 112. Save it offline before you travel. Emergency calls work on any available network regardless of your HelloRoam data balance.

Mobile networks in Saint Martin (French side): what Irish visitors need to know

HelloRoam connects on Orange and Digicel in Saint Martin (French side). Saint Martin is a shared island in the Caribbean, with the French side (Saint Martin) and the Dutch side (Sint Maarten). Orange and Digicel provide 4G LTE coverage across the French side including Marigot, Grand Case, and the main beaches. Coverage is reliable in Marigot and main resort areas. Your eSIM picks the best available signal automatically. Plans start at €0.99.

Orange: 5G

Reviewed by HelloRoam Editorial Team

Check Device Compatibility Data Usage Calculator

Prices verified: 15 May 2026

Your St Martin eSIM Questions Answered

eSIMs St Martin plans from HelloRoam cover both the French and Dutch sides of the island on Caribbean networks from €0.99. HelloRoam delivers a QR code by email so you activate at home before boarding. No roaming fees from your Irish provider, no physical SIM card, and a 180-day refund guarantee on every order.

An e-sim St Martin plan from HelloRoam covers both Saint-Martin and Sint Maarten on local Caribbean networks from €0.99. Activate at home via QR code before flying from Dublin so data is running from Princess Juliana Airport. No contract, no roaming fees, and a 180-day refund guarantee on every prepaid plan.

HelloRoam is a top-rated eSIM for travellers from Ireland visiting St Martin. Plans start from €0.99 and connect to 204+ carrier networks in St Martin at local 4G LTE and 5G speeds. Activate via QR code in under two minutes, keep your Three Ireland, Vodafone IE, or Eir number on dual SIM, and enjoy a full refund window of up to six months. No daily roaming charge and no carrier contract.

A St Martin eSIM starts from €0.99. Fixed data plans run from 1GB to 20GB. Unlimited daily plans suit longer trips. All plans include local 4G LTE and 5G access with no overage charges and no carrier contract. That is far less than what Eir charges for non-EU Worldwide Roaming or Vodafone IE for Global Roaming.

eSIM in St Martin connects to local 4G LTE and 5G networks. Your phone picks the strongest available signal automatically on arrival — no manual carrier selection needed. Coverage spans major cities, airports, main roads, and most rural areas. You get the same local network speeds as residents of St Martin, not the premium daily rates Eir or Vodafone IE charge for international roaming.

Getting your eSIM for St Martin takes three steps. First, choose your plan at helloroam.com and pay in EUR. Second, scan the QR code from your confirmation email in Settings under Mobile Data, then Add eSIM. Third, your e-sim installs in under two minutes and activates when you land. Do everything at home before you head to Dublin Airport, Shannon, Cork, or Knock. No shop visit, no physical SIM swap, no queue.

Yes. iPhone XS and all newer models support your eSIM for St Martin. Go to Settings, tap Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Irish number stays active on your main SIM through dual SIM while HelloRoam handles all travel data on the eSIM line. iPhone 14 and later are eSIM-only with no SIM tray needed.

The emergency number in Mf is 18. Dial 17 (police), 18 (fire), 15 (SAMU) for urgent help. Emergency calls work on any available network, including your HelloRoam eSIM, even without a data balance. Save the number offline before you travel.

HelloRoam eSIM plans work in Saint Martin (French side) on Orange and Digicel 4G LTE. Activate at home before your flight from Dublin by scanning the QR code in your phone settings. Enable data roaming when you land at Princess Juliana International Airport (Sint Maarten) or Grand Case Airport and you'll be online within seconds.

HelloRoam eSIM for Saint Martin (French side) connects on Orange and Digicel. Your phone picks the strongest available 4G LTE signal automatically as you move around Saint Martin (French side). Coverage is reliable in Marigot and all main tourist and resort areas.

HelloRoam eSIM plans for Saint Martin (French side) start at €0.99. Larger plans with more data and longer validity are available for bigger trips. All plans include 4G LTE data with no daily fees or surprise charges.

Saint Martin (French side) has 4G LTE coverage through Orange and Digicel. Coverage is reliable across Marigot and the main populated and resort areas. HelloRoam eSIM plans connect on the best available signal automatically.

What to Know Before You Buy

eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before you buy.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within St Martin. Urban areas typically have strong 4G/5G coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before departure. Activation requires an internet connection, which may not be available at your destination airport.

Transparency Notice

Service Provider Name (SPN): HelloRoam appears as the carrier name on your phone's status bar through the SPN, a standardized field in the eSIM profile. Unlike most travel eSIM resellers, HelloRoam provisions its own Service Provider Name.
Public Network Name (PNN): HelloRoam holds a registered Public Network Name, the official carrier identity filed with telecommunications authorities. HelloRoam is recognized as a licensed service provider, not a white-label reseller.
Access Point Name (APN): HelloRoam eSIMs auto-configure their Access Point Name during installation. Your device connects to the strongest local network infrastructure without manual settings.

Prices are our retail rates across 185+ countries. Plan recommendations use real traveller feedback and network performance data. Every purchase includes a 180-day money-back guarantee.

Future Syncs Limited124 City Road, London, EC1V 2NX, UK+44 203 916 6249help@helloroam.comReg. No. 15950168

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Number of days	Price
1 day	€1.96
3 days	€5.63
7 days	€13.14
15 days	€27.23
22 days	€38.14
30 days	€50.18

Category	Recommended	Local Saint Martin (French side) SIM card	Eir, Three Ireland, Vodafone Ireland, or GoMo roaming
Typical cost	From €0.99 total	€4.32–€21.61 total	€4.32–€12.96/day
Details	Plans from €0.99. Buy before your flight from Dublin Airport, activate at home, and arrive at Princess Juliana International Airport (Sint Maarten) or Grand Case Airport already on local 4G LTE data. No store visits or ID required.	Local SIM cards are available in Marigot. You need identification and in-store registration. Options may be limited. Unused data is forfeited when your trip ends.	Irish carrier international roaming can cost €5 to €15 per day. A week in Saint Martin (French side) on roaming could add €35 to €105 in data charges alone. HelloRoam eSIM starts at €0.99 for your whole trip.

Number of days	Price
1 day	€1.96
3 days	€5.63
7 days	€13.14
15 days	€27.23
22 days	€38.14
30 days	€50.18

Category	Recommended	Local Saint Martin (French side) SIM card	Eir, Three Ireland, Vodafone Ireland, or GoMo roaming
Typical cost	From €0.99 total	€4.32–€21.61 total	€4.32–€12.96/day
Details	Plans from €0.99. Buy before your flight from Dublin Airport, activate at home, and arrive at Princess Juliana International Airport (Sint Maarten) or Grand Case Airport already on local 4G LTE data. No store visits or ID required.	Local SIM cards are available in Marigot. You need identification and in-store registration. Options may be limited. Unused data is forfeited when your trip ends.	Irish carrier international roaming can cost €5 to €15 per day. A week in Saint Martin (French side) on roaming could add €35 to €105 in data charges alone. HelloRoam eSIM starts at €0.99 for your whole trip.

eSIM St Martin

Saint Martin eSIM coverage on local networks

St Martin eSIM with fast 5G coverage

Trip changed? No bother, we have got you sorted.

HelloRoam St Martin eSIM vs Three Ireland, Vodafone IE and Eir roaming

Why Travellers from Ireland Use HelloRoam e-sim for St Martin

HelloRoam vs Other eSIM Providers for St Martin