1 GB
Valid for 7 days
$6.99
$6.99 per GB
eSIM for Saint Martin
Saint Martin is one small island with two jurisdictions. The French collectivity in the north has Marigot, Grand Case and Orient Bay; Dutch Sint Maarten in the south has Philipsburg, Maho Beach and the airport nearly everyone flies into. There is no border post, just a monument on the road, and you will cross it several times a day. Your phone crosses it too, and it notices.
That is the local rule that matters for data. The two sides run separate mobile networks and count as separate destinations for roaming. A plan bought for Saint Martin is a French-side plan; Sint Maarten is listed on its own in the app. The coverage list for Saint Martin does include TelCell, which operates from the Dutch side, so phones near the border often keep a signal, but check the plan in the app rather than assume one plan covers the whole island for a week.
A FairSIM eSIM for Saint Martin roams onto Free, Digicel or TelCell. These are 4G LTE networks, not 5G, which in practice is plenty for Google Maps on the hill roads, WhatsApp with a villa host, restaurant bookings in Grand Case and hurricane bulletins in late summer. Install it over Wi-Fi at home, land at Princess Juliana, and skip the SIM counter entirely.
Saint Martin eSIM plans
Wholesale rates in US dollars, with nothing added at checkout. Buy in the FairSIM app and the plan is on your phone in seconds.
How long is your trip?
All plans. Pick a trip length to narrow the list.
- Get it in the app for Saint Martin
3 GB
Valid for 30 days
Get it in the app for Saint Martin$14.99
$5.00 per GB
- Best value
10 GB
Valid for 30 days
Get it in the app for Saint Martin$29.99
$3.00 per GB
Coverage in Saint Martin
- 4G LTE
- 5G
- FreeIliad's French brand, present in the French Antilles. 2G, 3G and 4G, strongest around Marigot, Grand Case and the main coast roads.
- DigicelThe Digicel Antilles Françaises Guyane network, the Caribbean operator most widely used on the French side. 2G, 3G and 4G.
- Digicel AntillesDigicel's second listed Antilles network, used as an additional fallback across the island. 2G, 3G and 4G.
- TelCellA Dutch-side operator, 4G only. Useful near the border and around Philipsburg, but Sint Maarten is a separate destination in the app.
Typical speed: Typical Caribbean 4G: fine for maps, messaging, music, video calls and standard-definition streaming. Expect slower evenings in Marigot and Philipsburg when cruise passengers and residents are all online.
Coverage follows the populated coast: Marigot, Grand Case, Orient Bay, Cul-de-Sac, Oyster Pond and the road to the Dutch side. It thins on the trail up Pic Paradis, in the valleys behind Colombier, and offshore towards Tintamarre and Pinel, where a boat can drop to nothing.
How much data do you need in Saint Martin?
It depends on how you travel. Find your trip below, then pick the plan that matches. You can always top up in the app.
Beach and restaurant week
A villa or small hotel on the French side, beach days and dinners in Grand Case.
Why data matters: Maps on unnamed roads, WhatsApp with the host and the beach club, table bookings, photos uploading from the sun lounger.
- 7 days
- 5 GB
- 14 days
- 10 GB
- 30 days
- 20 GB
Cruise call or short stopover
A day ashore from Philipsburg, or two nights either side of a flight.
Why data matters: Taxi coordination, ferry times, tracking your ship's all-aboard, and one video call home. Coverage is best in town and along the main road.
- 7 days
- 3 GB
- 14 days
- 5 GB
- 30 days
- 10 GB
Sailing and charter base
Simpson Bay Lagoon, Oyster Pond and day sails to Anguilla or Saint Barthélemy.
Why data matters: Weather models, marina paperwork, customs pre-clearance and crew messaging. Signal fades offshore, so download forecasts before you leave the dock.
- 7 days
- 5 GB
- 14 days
- 10 GB
- 30 days
- 20 GB
Remote work from the French side
A few weeks of laptop mornings and afternoons at Orient Bay.
Why data matters: Zoom and Meet on 4G when the villa Wi-Fi drops, Personal Hotspot for the laptop, large file uploads. Budget for hotspot use.
- 7 days
- 10 GB
- 14 days
- 20 GB
- 30 days
- Unlimited
Caribbean island hopping
Saint Martin plus Anguilla, Saint Barthélemy or Saint Kitts by ferry and short flight.
Why data matters: Each island is its own destination with its own networks. Buy the next plan in the same app before you board the ferry.
- 7 days
- 5 GB
- 14 days
- 10 GB
- 30 days
- 20 GB
What your home carrier charges in Saint Martin
Daily roaming passes look small until you multiply them by the length of the trip. FairSIM plans for Saint Martin start at $6.99 and never bill per day.
Saint Martin is an EU outermost region, so many French and EU plans treat it under roam-like-at-home rules. UK and Australian carriers usually do not include it in their cheapest zones. Check your own plan's country list rather than the zone name.
| Carrier | Roaming charge | FairSIM |
|---|---|---|
| AT&T International Day Pass (US) | $12 per day per line, $6 for each additional line, charged only on days you use the phone | from $6.99, no daily fee |
| Verizon TravelPass (US) | $12 per day in most non-Mexico and non-Canada destinations, high-speed data then slowed | from $6.99, no daily fee |
| Orange (France) | Saint-Martin is normally covered under EU roam-like-at-home terms on French plans, with fair-use data limits; outside those limits standard rates apply | from $6.99, no daily fee |
| EE (UK) | Caribbean destinations sit outside EE's included roaming and its cheapest travel passes on most plans; expect standard out-of-plan rates unless you add a pass that lists Saint Martin | from $6.99, no daily fee |
| Telstra International Day Pass (Australia) | A$10 per day for 2 GB in included destinations; confirm Saint Martin appears on Telstra's list before you rely on it | from $6.99, no daily fee |
Carrier prices as published on their roaming pages at the time of writing. They change often; check your own plan before you fly.
How FairSIM works
- 1
Pick a destination and a plan
Choose the country or region and the data you need. The price you see is the price you pay.
- 2
Tap install
On iPhone (iOS 17.4+) the eSIM installs in one tap, no QR code. Do it at home while you still have Wi-Fi.
- 3
Land and connect
Turn on data roaming for the FairSIM line when you arrive. Your plan starts when it first connects.
Connectivity tips for Saint Martin
Install the eSIM at home over Wi-Fi, then turn the line and data roaming on after you land. Validity normally starts at the first connection to a local network.
You will land at SXM on the Dutch side, so your phone may first grab a Dutch network. Give it a few minutes on the road north before deciding something is wrong.
Carry both euros and US dollars. The French side prices in euros, the Dutch side in dollars, and change is given at whatever rate the shop uses.
Emergency numbers differ by side: 112 in the north, 911 in the south. Save both.
Travelling June to November, keep a data buffer and enable National Hurricane Center alerts. Advisories arrive faster on mobile than on hotel Wi-Fi.
Download Google Maps offline for the whole island before hiking Pic Paradis or driving the back roads to Colombier.
Rent the car, agree the taxi fare in advance, and do not expect ride-hailing to bail you out at midnight.
Day-tripping to Anguilla or Saint Barthélemy? Those are separate destinations with separate networks. Add the plan in the app before the ferry leaves.
Apps you will actually use
- WhatsApp how villa hosts, taxi drivers, boat captains and restaurants actually reply here.
- Google Maps reliable for the coast roads and the border crossings; download the island offline before the Pic Paradis trail.
- Windy wind and swell for sailing days, and a clear view of tropical systems in season.
- National Hurricane Center the official advisories from June to November; set alerts rather than relying on rumours.
- FlightAware SXM arrivals and departures, useful when a connection through San Juan or Paris slips.
- XE Currency the French side quotes euros, the Dutch side dollars, and menus switch between them.
- Google Translate French menus and signage in the north, with the camera mode for market labels.
- Booking.com last-minute rooms when a ferry or flight strands you on the wrong side of the island.
There is no meaningful Uber or Lyft service here. Taxis run on published fixed fares between zones, agreed before you get in, and most are booked by phone or WhatsApp through your hotel. Most visitors rent a car, and that means maps and data for the whole stay.
Can you rely on free Wi-Fi?
Hotels, villas, restaurants and beach clubs nearly all offer free Wi-Fi, and in Grand Case, Marigot and Orient Bay it is usually good enough for email and a call. It is also the first thing to wobble after a storm or a power cut, and villa connections in the hills can be slow at night when everyone streams. Treat Wi-Fi as the bonus and the eSIM as the thing you can count on, especially for maps while driving and for hurricane advisories.
Local SIM card or eSIM in Saint Martin?
Prepaid SIMs exist on both sides of the island, but they are a chore for a short trip. On the French side you buy from operator shops and phone counters in Marigot or Hope Estate, with a passport and usually cash, and the bundles are written for residents rather than visitors. On the Dutch side the shops near the airport and on Front Street sell their own prepaid packs. Buy the wrong side's SIM and you spend the week roaming across your own hotel road.
A FairSIM eSIM avoids the split. You install it over Wi-Fi before you fly, switch the line on when you land, and it roams onto Free, Digicel or TelCell using the same towers the local packs use. Nothing to register at a counter, nothing to swap back at the end, and your home number stays in the phone for bank codes. If your trip runs mostly on the Dutch side, check Sint Maarten as its own destination in the app instead.
Good to know before you land in Saint Martin
- Currency
- Euro (EUR) on the French side, with US dollars accepted almost everywhere; the Dutch side prices in US dollars and Netherlands Antillean guilders
- Plug type
- Type E and C (French two-pin) on the French side; type A and B (US flat pin) on the Dutch side
- Voltage
- 220 V, 50 Hz on the French side; 110 V, 60 Hz on the Dutch side
- Emergency number
- 112 on the French side (15 medical, 18 fire); 911 on the Dutch side
- Language
- French is official; English and Saint-Martin Creole are spoken everywhere, with Spanish and Dutch also common
- Time zone
- UTC−4, Atlantic Standard Time, no daylight saving
- Capital
- Marigot
Saint Martin eSIM questions
Does an eSIM work in Saint Martin?
Yes. An unlocked eSIM phone connects to Free, Digicel or TelCell. On iPhone that means XS, XR or newer; most recent Samsung, Google Pixel and mid-range Android models support eSIM too.
Which network will my Saint Martin eSIM use?
Free, Digicel or TelCell, depending on the plan and where you are standing. The app shows the network for each plan before you buy.
Is there 5G in Saint Martin?
Not on the networks this eSIM uses. Plan for 4G LTE, which handles maps, streaming, video calls and hotspot use without trouble.
Does a Saint Martin plan cover Dutch Sint Maarten?
Treat them as two destinations. This plan is sold for the French collectivity, and its coverage list includes TelCell from the Dutch side, so phones near the border often hold a signal. If most of your stay is in Philipsburg or Simpson Bay, buy the Sint Maarten plan instead, or both.
Do I need a visa or a separate plan for the Dutch side?
There are no border controls between the two sides, so you can drive across freely. Mobile data is the part that changes, not immigration.
Can I use Personal Hotspot?
Yes. Every FairSIM plan supports Personal Hotspot, with no separate cap, which is how most people get a laptop online in a villa.
Should I install the eSIM before or after I fly?
Before. Install over Wi-Fi at home while you still have a stable connection, then switch the line on when you land at SXM.
How much data do I need for a week in Saint Martin?
A beach week with maps, messaging and photos runs about 5 GB. Two weeks or a working stay with video calls is closer to 10 to 20 GB.
Local SIM or travel eSIM for Saint Martin?
A local SIM means finding the right shop on the right side of the island with your passport and cash. A travel eSIM is installed before you fly, uses the same towers, and keeps your home number active for verification codes.
What is an eSIM?
A SIM card built into your phone. Instead of a plastic chip, you download a profile. Every iPhone since the XS has one next to the physical SIM slot, so your home number stays put while FairSIM supplies the data.
Is my phone compatible?
FairSIM works with eSIM-compatible, carrier-unlocked iPhones: the XS, XR and everything newer, on iOS 17.4 or later for the one-tap install with no QR code. iPhones bought in mainland China do not support eSIM at all, even when unlocked. Not sure yours is unlocked? Check Settings, General, About, Carrier Lock, or ask your carrier. The full list is on the How it works page.
When should I install my eSIM?
Before you travel, while you still have Wi-Fi. Installing does not start your plan; the validity typically starts when the eSIM first connects to a network at your destination.
Do FairSIM eSIMs come with a phone number?
No. FairSIM eSIMs are data-only by design, which keeps costs low. For calls and texts, your physical SIM stays active so you keep your existing number, and WhatsApp, FaceTime and iMessage work over data.
Traveling beyond Saint Martin?
Get your Saint Martin eSIM in the app
Plans from $6.99. Install before you fly, track your data live, and top up in seconds if you need more.
Download on theApp Store
iPhone XS or later · iOS 17.4+ for one-tap install
