FairSIM eSIM for Martinique
Martinique is France in the Caribbean, and it runs on a rental car. There is no Uber, buses outside the Fort-de-France area are sparse, and the good things are spread out: Les Salines in the far south, Saint-Pierre and Mount Pelee in the north, the rum distilleries in between. You will use maps constantly, and you will use them on steep, narrow roads where a wrong turn costs twenty minutes.
A FairSIM eSIM connects to Free or Digicel, the two networks on the eSIM Go sheet for Martinique. Both run 4G LTE here, which is plenty for maps, ferry times, restaurant bookings and video calls home. Install it over Wi-Fi before you leave, switch the line on when you land at Aime Cesaire airport, and skip the shop queue entirely. Personal Hotspot works, so a laptop or a second phone can share the plan.
The local rule worth knowing: Martinique is an EU outermost region, so EU roaming rules apply. If your SIM is French, German, Spanish or from any other EU country, you very likely roam like at home here at no extra cost, and you do not need anything else. If your line is American, British, Australian or Canadian, you are in a long-haul roaming zone and daily passes or per-megabyte rates apply. That is where a travel eSIM saves real money. Note too that French prepaid SIMs require ID registration in store, so a local SIM means a passport and a counter visit.
- CarriersFree Caraïbe
- CompatibilityCheck if eSIM is available on your phone
- No days lostPurchase now, data will start when you arrive
Martinique eSIM plans
Plan starts: On first data use
Coverage in Martinique
- 4G LTE5G
Free
Iliad's network in the French Antilles, with 4G across the populated coasts and the Fort-de-France conurbation. A common host for travel eSIMs in Martinique.
- 4G LTE5G
Digicel
The Caribbean operator's French Antilles and Guyane network, with 4G on the island and long experience of Caribbean terrain.
4G LTE on both host networks. Neither is marked for 5G here, so plan for 4G speeds.
Typical speed: 4G is comfortable for maps, streaming, calls and hotspot use in and around Fort-de-France, the southern beach towns and the main N and D roads. Expect slower speeds in the rainforest interior and on the north Atlantic coast.
Coverage follows the coast road and the built-up south. The Fort-de-France and Lamentin area, Trois-Ilets, Sainte-Anne, Le Marin, Le Diamant and Saint-Pierre are well served. Signal thins on the upper slopes of Mount Pelee, in the Pitons du Carbet and on the trail to Grand-Riviere, so download offline maps before you hike.
How much data do you need in Martinique?
It depends on how you travel. Find your trip below, then pick the plan that matches. You can always top up in the app.
Southern beach week
A base in Sainte-Anne, Le Diamant or Les Trois-Ilets with beach days and rum stops.
Why data matters: Maps for the coast roads, restaurant pages on Facebook, beach webcams, photo uploads and calls home in the evening.
- 7 days
- 5 GB
- 14 days
- 10 GB
- 30 days
- 20 GB
North and hiking trip
Saint-Pierre, Mount Pelee, the Pitons du Carbet and the Atlantic coast to Grand-Riviere.
Why data matters: Offline maps downloaded in advance, Meteo France cyclone and rain alerts, and a working line for trailhead parking and taxi calls.
- 7 days
- 3 GB
- 14 days
- 5 GB
- 30 days
- 10 GB
Sailing and charter from Le Marin
A week on a monohull or catamaran around the southern bays and down to Saint Lucia.
Why data matters: Weather routing, wind apps, mooring bookings and provisioning lists. Signal holds in the bays and drops offshore.
- 7 days
- 5 GB
- 14 days
- 10 GB
- 30 days
- 20 GB
Family villa stay
Two or three weeks in a rented villa or gite with kids and a car.
Why data matters: Several phones and a tablet on one hotspot, streaming in the evening, grocery orders and school catch-up. Villa Wi-Fi is often slow.
- 7 days
- 10 GB
- 14 days
- 20 GB
- 30 days
- Unlimited
Island hopping the French Antilles
Martinique plus Guadeloupe, Dominica or Saint Lucia by ferry or short flight.
Why data matters: Ferry schedules change with the swell, and each island is a separate plan in the same app. Buy the next one before you board.
- 7 days
- 5 GB
- 14 days
- 10 GB
- 30 days
- 20 GB
What your home carrier charges in Martinique
Daily roaming passes look small until you multiply them by the length of the trip. FairSIM plans for Martinique start at $8.99 and never bill per day.
| Carrier | Roaming charge | FairSIM |
|---|---|---|
| AT&T International Day Pass (US) | $12 per day per line, $6 for each additional line, charged only on the days you use it | from $8.99, no daily fee |
| Verizon TravelPass (US) | $12 per line per day, 5 GB of high-speed data per day then slower speeds | from $8.99, no daily fee |
| Orange or Telekom (EU) | Included under EU roam-like-at-home rules within your plan's fair-use limit | from $8.99, no daily fee |
| EE (UK) | £2.72 per day, or £16.50 for a 7-day EU pass and £30 for 15 days | from $8.99, 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
Three steps between you and the internet abroad. Nothing to pick up at the airport.
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.
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.
Land and connect
Turn on data roaming for the FairSIM line when you arrive. Your plan starts when it first connects.
Connectivity tips for Martinique
Install the eSIM at home over Wi-Fi, then switch the line on and enable data roaming after you land at Martinique Aime Cesaire airport.
Download all of Martinique in Google Maps offline before you drive to Grand-Riviere or up Mount Pelee. The interior loses signal.
Book the rental car early for high season and for Carnival week. Without a car you will see very little of the island.
Roads are narrow, steep and full of switchbacks. Set the route before you move off, and expect journeys to take longer than the app says.
Keep your home SIM active for bank one-time codes, with its data roaming turned off so it cannot pick up a long-haul charge.
Check Meteo France vigilance levels daily between July and November, and take orange or red warnings seriously in the ravines.
Carry a power bank. Navigation plus photos plus heat drains a phone faster than you plan for.
Heading on to Guadeloupe, Dominica or Saint Lucia? Buy the next plan in the same app before you board the ferry or the flight.
Can you rely on free Wi-Fi?
Hotels, gites and most cafes in Fort-de-France and the southern resort towns have Wi-Fi, and it is usually fine for messaging and email. It is often much weaker than you expect in villas and in the hills, where the connection is shared and the copper or radio backhaul is old. Beaches, hiking trails, ferries and rural distilleries have nothing. Treat Wi-Fi as a bonus for big downloads at night, not as your connection for the day.
Local SIM card or eSIM in Martinique?
Prepaid SIMs from Orange Caraibe, SFR Caraibe, Digicel and Free are sold in phone shops in Fort-de-France, in the Lamentin retail parks and in larger supermarkets. French law requires identity registration, so you bring your passport to the counter, fill in a form and wait. Airport options are limited and shops keep French hours, which means closed on Sunday and often closed over a long lunch. If you land on a Saturday evening for a week-long stay, you can lose most of a day to it.
A FairSIM eSIM is installed before you fly and roams onto Free or Digicel, the same towers a local prepaid line would use. There is no paperwork, no deposit and no leftover credit. Your home number stays active on its main line for bank codes and airline messages, with data roaming switched off. A local SIM makes sense if you need a French mobile number for months; for a holiday, the eSIM is faster and the app shows what you have left.
Martinique eSIM questions
Does eSIM work in Martinique?
Yes. An unlocked eSIM phone connects to Free or Digicel 4G with a travel eSIM. On iPhone that means XS, XR or newer; most recent Android flagships and Pixels support eSIM too.
Which network will my Martinique eSIM use?
Free or Digicel, the two host networks on the coverage sheet for Martinique. The app shows which network applies to each plan.
Is there 5G in Martinique?
Not on the networks FairSIM uses here. Both Free and Digicel are listed for 2G, 3G and 4G in Martinique, so plan for 4G LTE speeds, which handle maps, streaming and calls without trouble.
Do I need an eSIM if I have a French or EU SIM?
Probably not. Martinique is an EU outermost region, so EU roaming rules apply and most French and EU plans work here on your normal allowance. Check your fair-use data cap for long stays.
Can I use Personal Hotspot in Martinique?
Yes. Every FairSIM plan supports Personal Hotspot, with no separate cap, which is useful in villas with weak Wi-Fi.
How much data do I need for a week in Martinique?
A beach week with maps, messaging and photos runs about 5 GB. Two weeks with a family sharing a hotspot is closer to 20 GB. Add more if you stream in the evening.
Is there mobile coverage on the hiking trails and Mount Pelee?
Partly. The lower slopes and trailheads usually have 4G, but the upper mountain, the Pitons du Carbet and the deep ravines drop out. Download offline maps and tell someone your route.
Local SIM or travel eSIM for Martinique?
A local prepaid SIM needs your passport at a counter during French shop hours, and the shops close on Sundays. A travel eSIM is installed before you fly and roams on the same networks, so you are online from the moment you land.
Will my phone work in Guadeloupe or Saint Lucia on the same plan?
No. Each is a separate destination with its own plan. Buy the next one from the same app before you travel, or ask about a regional option covering several Caribbean stops.
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.
