# eSIM for St. Martin Viasimo's St. Martin eSIM starts at $1.59 for 1 GB over 7 days, running on Orange with 5G where available. Plans last 1 to 180 days, arrive by email in minutes and install from your phone's settings, with no app. Canonical page: https://viasimo.com/destinations/st-martin/ ## St. Martin eSIM prices | Plan | Data | Days | Price | Price per GB | | --- | --- | --- | --- | --- | | 2 GB, 1 day | 2 GB | 1 | $2.59 | $1.30 | | 5 GB, 1 day | 5 GB | 1 | $4.00 | $0.80 | | Unlimited, 3 days | Unlimited | 3 | $6.99 | - | | Unlimited, 5 days | Unlimited | 5 | $10.99 | - | | 1 GB, 7 days | 1 GB | 7 | $1.59 | $1.59 | | Unlimited, 7 days | Unlimited | 7 | $13.99 | - | | Unlimited, 10 days | Unlimited | 10 | $18.99 | - | | 3 GB, 15 days | 3 GB | 15 | $3.00 | $1.00 | | Unlimited, 15 days | Unlimited | 15 | $27.99 | - | | 3 GB, 30 days | 3 GB | 30 | $3.29 | $1.10 | | 5 GB, 30 days | 5 GB | 30 | $4.59 | $0.92 | | 10 GB, 30 days | 10 GB | 30 | $8.00 | $0.80 | | 20 GB, 30 days | 20 GB | 30 | $16.00 | $0.80 | | Unlimited, 30 days | Unlimited | 30 | $49.00 | - | | Unlimited, 60 days | Unlimited | 60 | $96.99 | - | | Unlimited, 90 days | Unlimited | 90 | $149.99 | - | | Unlimited, 180 days | Unlimited | 180 | $294.99 | - | ## Which networks does the St. Martin eSIM use? - **Orange**: 5G Your eSIM picks one automatically; you do not choose or switch between them. The operator list comes from the network partner that carries this eSIM. Verified October 30, 2026. ## eSIM Details - **Data**: 1 GB – 20 GB or unlimited - **Validity**: 1–180 days - **Speed**: 4G LTE / 5G - **Hotspot / tethering**: Supported on most devices - **Activation**: Starts when you first connect in your destination - **Speed management**: Roughly 2-3 GB per day at full speed, sometimes less depending on the local carrier, then reduced - **Top-ups**: Add more data from your account, before the plan expires - **Text messages (SMS)**: Data only: use an app for verification codes - **Unused validity**: 180 days before it must be installed ## St. Martin: what to know before you land Source: https://viasimo.com/destinations/st-martin/#destination-guide · Researched October 2026 by Viasimo French Saint-Martin, the northern 60% of the island, is an outermost region of the European Union and uses the euro and the +590 dialling code. Dutch Sint Maarten to the south is outside the EU, uses the new Caribbean guilder and the +1 code, and is where most visitors land, at Princess Juliana (SXM). Your eSIM uses Orange on the French side. ### St. Martin: quick facts | Fact | St. Martin | | --- | --- | | Emergency number | 112 (police 17, SAMU medical 15, fire 18) | | Main airports | Princess Juliana International Airport (Dutch side) (SXM); Grand Case–L'Espérance Airport (French side) (SFG) | | Plug types | Type C, E (220V) | | Currency | Euro (EUR) on the French side; US dollars widely accepted | | Apps worth having | WhatsApp, Google Maps, Facebook | ### Saint-Martin is in the EU, Sint Maarten is not (St. Martin · https://viasimo.com/destinations/st-martin/#guide-saint-martin-is-in-the-eu-sint-maarten-is-not) The 1648 Treaty of Concordia split the island, and the two halves still sit in different legal worlds. **Saint-Martin** stayed part of the European Union as an **outermost region** when it separated from Guadeloupe in 2007. **Sint Maarten**, a constituent country of the Kingdom of the Netherlands since 2010, is classed as an **Overseas Country and Territory**, with ties to the EU but not part of it. That matters for phones in a few ways: - If you have an **EU SIM**, the EU's roaming rules follow EU territory, so Marigot, Grand Case and Orient Bay are treated differently from Philipsburg and Simpson Bay. Check your operator's terms for both halves, because the Dutch side is not covered by EU roaming law. - **Dialling codes differ.** The French side uses **+590**, like Guadeloupe; the Dutch side is part of the North American +1 system. Ringing a Simpson Bay restaurant from a French number, or vice versa, is an international call. - Your eSIM is data only and connects to **Orange** on the French side. Book restaurants and boat trips through WhatsApp or websites where you can, rather than by phone, especially across the border. The island's only land border between France and the Netherlands has no routine checks on the road, which is exactly why the switch between networks and rules is easy to miss. ### Euros, dollars and the new Caribbean guilder (St. Martin · https://viasimo.com/destinations/st-martin/#guide-euros-dollars-and-the-new-caribbean-guilder) Money on Saint Martin is a three-currency puzzle, and you will use your phone to solve it. - On the **French side**, the **euro** is the official currency, but **US dollars** are widely accepted. - On the **Dutch side**, the **Caribbean guilder (XCG)** is now the official currency. It was introduced on **31 March 2025** and replaced the Netherlands Antillean guilder, which stopped being legal tender after a three-month changeover ending on **30 June 2025**. US dollars and euros are also widely used. Any old Antillean guilder notes you have from a previous trip are no longer accepted as payment. What this means in practice: - Prices may be shown in one currency and charged in another. Use a currency converter app, or your banking app's rate, before agreeing to a cash price. - When a card machine asks whether to pay in your home currency or the local one, choosing local is usually cheaper, since the merchant's conversion rate tends to be worse. - Keep some small US dollar notes for tips and beach vendors, which are common on both sides. Your banking app may send security codes by text when you pay in several currencies in one day. Keep your home SIM switched on for calls and texts so they reach you. ### Princess Juliana (SXM), Grand Case (SFG) and the legacy of Irma (St. Martin · https://viasimo.com/destinations/st-martin/#guide-princess-juliana-sxm-grand-case-sfg-and-the-legacy-of-irma) Most visitors arrive at **Princess Juliana International Airport (SXM)** on the Dutch side, which has flights to North America, the wider Caribbean, France and the Netherlands, and is famous for the low approaches over Maho Beach. Smaller regional flights also use **Grand Case–L'Espérance Airport (SFG)** on the French side. Hurricane season shaped the island you will see. **Hurricane Irma** hit on **6 September 2017** and damaged or destroyed about **95% of buildings on the French side**. The population of Saint-Martin fell from 35,334 in 2017 to 31,477 in the 2021 census, mostly because of the storm. Princess Juliana reopened to commercial flights on 10 October 2017, and its main reconstruction was largely completed in 2024. If you travel between June and November: - Turn on airline notifications and keep data on in the days before your flight, as storms can change schedules quickly. - Save passports, insurance details and booking confirmations offline and in the cloud. - Check official French and Dutch-side weather alerts, since the two halves issue their own. When you drive north from SXM to the French side, your phone may take a few minutes to settle on Orange once you cross the border. ### Sources for the St. Martin guide - [Collectivity of Saint Martin – Wikipedia](https://en.wikipedia.org/wiki/Collectivity_of_Saint_Martin) - [Sint Maarten – Wikipedia](https://en.wikipedia.org/wiki/Sint_Maarten) - [Mobile roaming costs – Your Europe (European Commission)](https://europa.eu/youreurope/citizens/consumers/internet-telecoms/mobile-roaming-costs/index_en.htm) - [List of emergency telephone numbers – Wikipedia](https://en.wikipedia.org/wiki/List_of_emergency_telephone_numbers) ## Seven days in Saint-Martin: Marigot, Grand Case, Pinel and the nature reserve 7-day itinerary · 7 days · Source: https://viasimo.com/destinations/st-martin/#itinerary A beach-and-snorkelling week based on the French side of the island, with a car: Marigot and Fort Louis, Grand Case's waterfront, the islets of Pinel and Tintamarre in the nature reserve, the hike to Pic Paradis and a day across the border on Dutch Sint Maarten. **When to go:** December to April is dry and breezy, the peak season; hurricane season runs June to November, with the greatest risk from August to October, when some businesses close for a few weeks. ### Day 1 in St. Martin: Arrive and settle in at Grand Case - **Base:** Grand Case - **Getting there:** About 30 to 40 minutes by road from Princess Juliana Airport (SXM); island traffic can be slow in the late afternoon. - **Plan:** Most flights land at Princess Juliana on the Dutch side. Pick up your hire car and drive north across the open border to Grand Case on the French side. Swim off the town beach in the afternoon, then walk the boulevard in the evening, where the lolos, open-air barbecue stalls, serve grilled ribs and fish beside the sea. - **Mobile signal:** Your Orange plan covers the French side. Expect your phone to pick up Dutch-side networks at the airport, so switch it to Orange once you cross into Saint-Martin. ### Day 2 in St. Martin: Marigot and Fort Louis - **Base:** Grand Case - **Getting there:** About 15 minutes by road from Grand Case. - **Plan:** Drive to Marigot, the capital of French Saint-Martin. Visit the waterfront market, busiest on Wednesday and Saturday mornings, then climb to Fort Louis, built in the 18th century, for views over the bay and across to Anguilla. In the afternoon, swim at Baie Nettlé or drive west to Baie Rouge for snorkelling along the rocks at its western end. - **Mobile signal:** Orange coverage is reliable in Marigot and along the coast road to Baie Rouge. ### Day 3 in St. Martin: Pinel Island - **Base:** Grand Case - **Getting there:** The boat from Cul-de-Sac takes about five to ten minutes. - **Plan:** Drive to Cul-de-Sac and take the small ferry across to Pinel, a low islet within the Saint-Martin nature reserve. Swim in the calm lagoon and snorkel the marked underwater trail on the sheltered side, looking for turtles and reef fish. Walk the short path over the hill to the wilder windward beach, then return on an afternoon boat. Bring reef-safe sunscreen. - **Mobile signal:** Generally usable 4G on Pinel, as it lies close to the mainland, though signal can be weaker on the windward side. ### Day 4 in St. Martin: Tintamarre and Orient Bay - **Base:** Grand Case - **Getting there:** Boat trips usually leave from Orient Bay or Cul-de-Sac and take about 20 to 30 minutes. - **Plan:** Join a licensed boat trip to Tintamarre, a flat islet in the nature reserve off the east coast, with a long white beach and good snorkelling; follow the reserve's rules and do not fly drones. In the afternoon, return to Orient Bay, the island's longest beach, for a swim or to try windsurfing or kitesurfing at the designated spots. - **Mobile signal:** Patchy on the boat and on Tintamarre, which is farther offshore. Good 4G returns at Orient Bay. ### Day 5 in St. Martin: Pic Paradis and Loterie Farm - **Base:** Grand Case - **Getting there:** Loterie Farm is about 15 minutes by road from Grand Case. - **Plan:** Start early and drive inland to Loterie Farm, a former sugar estate on the slopes of Pic Paradis, the island's highest point at about 424 m. Walk the forest trails up to the summit for views across both sides of the island and to St Barths on a clear day, or try the zip lines through the treetops. Spend the afternoon swimming at quiet Friar's Bay. - **Mobile signal:** Signal weakens on the forest trails below Pic Paradis. Download a map of the trails before you set out. ### Day 6 in St. Martin: A day on Dutch Sint Maarten - **Base:** Grand Case - **Getting there:** Philipsburg is about 30 to 40 minutes by road from Grand Case. - **Plan:** Cross the border, marked only by a monument, to the Dutch side. Walk Front Street and the boardwalk in Philipsburg, and visit Fort Amsterdam on the headland. In the late afternoon, go to Maho Beach at the end of the airport runway to watch planes land low overhead, keeping well back from the fence as jet blast is dangerous. - **Mobile signal:** Your Orange plan is for the French side; on Dutch Sint Maarten your phone will switch to other networks, so check before you go whether your plan covers them or download what you need first. ### Day 7 in St. Martin: Anse Marcel and departure - **Base:** Grand Case - **Getting there:** About 40 minutes by road to Princess Juliana Airport. - **Plan:** Spend a last morning at Anse Marcel, a sheltered bay north of Grand Case, or walk the coastal path from there towards Petites Cayes, a quiet beach reachable only on foot. Return your car and head back to Princess Juliana Airport, allowing extra time for traffic at the Simpson Bay bridge. - **Mobile signal:** Good 4G at Anse Marcel; the coastal path to Petites Cayes has weaker signal. Download your boarding pass before crossing to the Dutch side. ### Staying connected on this St. Martin route - The French side uses +590 and the Dutch side +1, so calls between them are international; use messaging apps with your data-only eSIM. - Set your phone to choose Orange manually on the French side, as it can easily latch onto Dutch-side networks near the border. - Download offline maps and the reserve's rules before boat trips to Pinel and Tintamarre. ### Sources for the St. Martin itinerary - [Saint-Martin National Nature Reserve](https://www.reservenaturelle-saint-martin.com/en/) - [GOV.UK foreign travel advice: St Martin and St Barthélemy](https://www.gov.uk/foreign-travel-advice/st-martin-and-st-barthelemy) - [Princess Juliana International Airport](https://www.sxmairport.com/) ## About this eSIM One island, two administrations, and a border you can cross without noticing: that is the thing to understand before you sort out data for Saint Martin. The French north and the Dutch south share a landmass, a lagoon and a lot of traffic, but they are separate territories with separate mobile networks, and a plan valid on one half is not automatically valid on the other. Getting that right before you travel is the difference between a phone that works all week and one that stops working the moment you drive to lunch. ### Getting online when you land Install the eSIM profile at home while you are on wifi. The download needs an internet connection, and the airport is not where you want to discover otherwise. When you arrive, turn the travel line on, enable data roaming for it, and set it as the data line, keeping your usual number available for calls while its own roaming stays off. Nearly everyone lands at Princess Juliana on the Dutch side, then drives north if they are staying in Marigot, Grand Case or Orient Bay. That drive crosses the internal border within a few minutes, which is precisely why the coverage question matters here more than on a normal small island. Check what your plan lists before you fly. If it covers only one side, plan on your phone connecting properly at your accommodation and behaving unpredictably when you cross, and do the important messages on the side that works. ### The networks you'll be on Each half of the island has its own mobile networks, and your phone will register with whichever one matches your plan. There is nothing to configure manually; leave selection automatic and let it attach. Expect service adequate for navigation, messaging, bookings and photographs. Where you sit on the island matters more than any setting: the terrain is hilly, the built up areas are concentrated, and signal follows the roads and the towns rather than covering the interior evenly. Near the internal border your phone may hop between the two sides' networks, which can look like an unstable connection when it is really just indecision. If that happens repeatedly and your plan covers only one side, forcing a manual network selection while you are stationary can settle it. ### Where coverage holds, and where it thins Marigot, Grand Case, Orient Bay, Philipsburg, Simpson Bay and the airport area are the strongest parts of the island, and the ring road linking them generally holds a connection. The lagoon shore, the marinas and the resort strips are well served, which covers most of where visitors sleep and eat. It thins as you climb and as you head to the quieter ends. Pic Paradis and the trails leading up to it lose signal in the trees, and the interior tracks between the north and the centre are unreliable. Happy Bay, Petites Cayes and the walk out along the northern coast to the wilder beaches are patchy, sometimes with nothing at all at the sand. Baie Rouge, Cupecoy and the western coves can be weak depending on which way the headland sits between you and the towers. The water is the bigger gap. Ferries and day boats to Anguilla, Saint Barthélemy and Tintamarre leave your plan's territory as well as its reach, so unless you hold something that explicitly covers those destinations, assume you are offline the moment you clear the harbour and stay that way until you return. ### What you'll actually use data for here Eating is a genuine reason. Grand Case is a dense strip of restaurants that fill up in season and take reservations by phone, and the beach clubs at Orient Bay work the same way. Menus, opening days and whether somewhere reopened after the storm season are all things you check the same day rather than in advance. Driving is the other. A hire car is close to essential, and navigation across an island with two road numbering conventions, no formal border formalities and a lot of unmarked turnings is where your data earns its place. Add parking, fuel stops and finding your way back to the airport through Simpson Bay traffic, which is worse than the distance suggests. Beyond that: ferry and excursion bookings, weather and sea state during hurricane season, cruise ship schedules if you want to avoid Philipsburg on a busy day, currency and payment questions since both euros and dollars circulate, photo uploads, and calls home. Villa and apartment rentals here are usually managed by message, so being reachable is part of the arrangement. ### Before you fly Confirm which side or sides your plan covers, and buy accordingly if you intend to move around the whole island. Install the profile at home, and check your handset is unlocked and eSIM capable. Download one offline map covering both halves rather than just the area around your accommodation. Save your villa manager, car hire and restaurant contacts, keep your home line reachable for verification codes with its data roaming off, and bring a power bank. Treat boat days to the neighbouring islands as offline unless you have specifically arranged otherwise. ## Frequently asked questions ### Does an eSIM work in St. Martin? Yes. Your St. Martin eSIM connects automatically the moment you arrive, with no roaming fees and nothing to set up at the airport. The host networks it can use are Orange. Coverage runs on 4G LTE and 5G where the network has rolled it out, and falls back to 4G elsewhere. ### Do I get 5G in St. Martin? Yes, where it has been deployed. 5G runs on Orange in St. Martin, and your eSIM uses it automatically on a 5G-capable phone, dropping back to 4G LTE outside covered areas. No country is covered everywhere, so 5G availability varies by location. ### Does EU roaming work in Saint-Martin? On the French side, Saint-Martin is an outermost region of the EU, so it is EU territory for roaming purposes. Dutch Sint Maarten is an Overseas Country and Territory outside the EU, so EU roaming rules do not apply there. If you use an EU SIM, check your operator's terms for both halves before you travel. ### What currency do I need in Saint Martin? On the French side the euro is official and US dollars are widely accepted. On the Dutch side the Caribbean guilder (XCG) replaced the Netherlands Antillean guilder in 2025 (the old guilder stopped being legal tender on 30 June 2025), and US dollars and euros are also widely used. Check rates on your phone before paying cash. ### What is the dialling code for Saint-Martin? The French side uses +590, the same as Guadeloupe. Dutch Sint Maarten is part of the North American +1 system, so a call between the two halves is international. A data-only eSIM has no number, so use messaging apps for bookings, or call through your home SIM and check its rates for each side. ### Which airport do I fly into for Saint-Martin? Most visitors land at Princess Juliana International Airport (SXM) on the Dutch side, which has flights to North America, the Caribbean, France and the Netherlands. Grand Case–L'Espérance Airport (SFG) on the French side handles smaller regional flights. The drive from SXM to Marigot or Grand Case crosses the internal border. ### How much data do I need for 7 days in St. Martin? For 7 days in St. Martin, Viasimo sells 1 GB for $1.59 and unlimited data for $13.99. Our sizing recommendation, not a measurement: maps, messaging and the occasional lookup, about 1 GB a week; maps, social, photos and some browsing, about 3 to 7 GB a week. The data calculator on this site works it out from how you actually use your phone. ## Information and verification - **Prices and plans**: Every price and allowance on this page is read from the live catalog, not typed in. Verified October 30, 2026. - **Host networks**: The operator list comes from the network partner that carries this eSIM. Verified October 30, 2026.