eSIM Saint Martin: The Only eSIM for BOTH the French & Dutch Sides

Welcome to the "Friendly Island," the unique paradise split between France (Saint-Martin) and the Netherlands (Sint Maarten). Whether you're here for the gourmet food of Grand Case, the markets of Marigot (French side), or the planes at Maho Beach (Dutch side), you'll cross the border constantly.

Don't get caught by the island's notorious roaming trap. Get one Saint Martin eSIM that covers the entire island (both sides) seamlessly. Plans start at just $6.44. Choose from 7 limited and 14 unlimited plans.

CRITICAL WARNING: The "SXM Airport" Roaming Trap!

This is the most confusing and expensive travel trap in the Caribbean:

1. The French Side (Saint-Martin) IS in the EU.
2. The Dutch Side (Sint Maarten) is NOT in the EU.
3. The Main Airport (SXM) is on the DUTCH (Non-EU) SIDE.

The Trap: The moment you land at Princess Juliana Airport (SXM), your phone connects to a non-EU network. Even if your home carrier (from the US, UK, or even France!) has a "Europe" plan, you will immediately be charged astronomical "Rest of World" roaming fees.

Our eSIM for Saint Martin / Sint Maarten is the ONLY solution that provides one single data plan across both territories, saving you from this bill shock.

Why Cellesim is Your Essential Island-Wide Pass

• Avoid the Roaming Trap: Our eSIM automatically switches between French and Dutch networks without extra charges. Explore Marigot and Philipsburg with one plan.
• Instant (SXM) Airport Connection: Get online at (SXM) Airport (the Dutch side) without fear of massive fees.
• Massive Cost Savings: Our predictable plans are a fraction of the "pay-as-you-go" roaming fees your provider will charge.
• Keep Your Home Number: Your eSIM handles the data, so your primary SIM (and your WhatsApp number) remains active for important calls.

From Marigot to Maho Beach: One Seamless Connection

1. Marigot & Grand Case (French Side)

The heart of French Caribbean chic and the gourmet capital. Your eSIM Saint Martin side works perfectly here.

2. Philipsburg & Maho Beach (Dutch Side)

Cross the invisible border to shop in Philipsburg or watch planes at Maho Beach. Your Cellesim eSIM continues to work seamlessly, unlike a standard EU SIM.

Popular Saint Martin eSIM Data Plans ($)

A selection of our 7 most popular high-speed data plans:

• 1 GB (7 Days): $6.44
• 2 GB (15 Days): $11.46
• 3 GB (30 Days): $15.61
• 5 GB (30 Days): $25.04
• 10 GB (30 Days): $45.10
• 20 GB (30 Days): $80.19
• 50 GB (30 Days): $51.54 (Note: 50GB plan is cheaper than 20GB.)

Need Unlimited Data for Your Caribbean Getaway?

For digital nomads, "yachties," or long-term visitors who need constant data, we offer 14 different Saint Martin / Sint Maarten Unlimited Data eSIM plans.

3 Easy Steps: Get Ready Before You Fly

1. Purchase: Choose the Saint Martin mobile data plan that fits your trip.
2. Scan QR Code: You'll instantly receive a QR code via email. Scan it from your phone's "Add eSIM" menu (CRITICAL: Do this before you leave home, while you have stable internet).
3. Activate on Arrival: When you land at (SXM) Airport, simply switch your mobile data line to Cellesim. You're instantly connected on both sides of the island.