Best eSIM for Saint-Martin (French side)
The French side of Saint-Martin is an EU outermost region, so EU Roam Like at Home applies here as in Guadeloupe or Martinique. The Dutch side, Sint Maarten, sits outside the EU and its roaming rules, and the open border lets a phone switch networks without notice — check which side a plan covers before buying.
Last checked: October 2026. Plans and prices change — verify before purchase.
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How much will it cost for your trip?
The French side of Saint-Martin covers Marigot (capital), Grand-Case (restaurant row), Anse Marcel and Orient Bay. Coverage is strong throughout this compact territory. Crossing to Philipsburg on the Dutch Sint Maarten side: the border is open and free but telecoms are separate — your French/EU SIM may or may not cover Sint Maarten without extra charges. Check your carrier's Sint Maarten terms before crossing.
Grand-Case, Marigot and Orient Bay (Baie Orientale) have strong 4G on Orange Caraïbe. The Dutch side (Philipsburg, Maho Beach) is Sint Maarten — a separate territory. Your EU eSIM covers the French Saint-Martin side. If shopping or visiting Maho, verify whether your carrier extends RLAH to Sint Maarten specifically.
Prices sourced from provider websites. Network information sourced from provider documentation and independent travel guides (2026).
eSIM — Saint Martin
Network coverage in Saint-Martin
The French side of Saint-Martin is served by four operators: Orange Caraïbe (market leader, #1 across 117 of 130 ARCEP quality criteria in Saint-Martin for the 6th consecutive year in 2025), SFR Caraïbe, Dauphin Telecom (local operator serving both Saint-Martin and Saint-Barth), and Digicel (operates across both the French and Dutch sides of the island). Orange launched 5G in Marigot in 2023. The island is divided but has no border controls: French operators (Orange, SFR, Dauphin) offer free roaming on TelCell on the Dutch Sint Maarten side; Digicel operates on both sides without surcharge.
The French side of Saint-Martin is an EU outermost region — EU Roam Like at Home applies, as in Guadeloupe or Martinique. It stops at the open border with Sint Maarten (Dutch side), which is outside the EU: a phone that drifts onto a Dutch-side network is billed at international rates, a common source of bill shock. On this page, Airalo, Saily and Roamless all sell French-side plans but none names its local carrier; with Orange Caraïbe the coverage leader, any should perform well.
Where are you travelling from? Does your plan cover this destination?
All AT&T plansPlan data / 1 day: US$12; plan data / 30 days: US$120.Compare: the pass may be enough.
Unlimited UltimateIncluded in the plan.Keep your plan.
Unlimited Plus, Unlimited Welcome5 GB / 1 day: US$12; 20 GB / 30 days: US$100.Compare: the pass may be enough.
Experience Beyond (Go5G Next) · Experience More (Go5G Plus, Magenta MAX)Included in the plan.Keep your plan.
Essentials2 GB / 1 day: US$10; 15 GB / 10 days: US$50; 30 GB / 30 days: US$75.Compare: the pass may be enough.
Full Works (2024+)Included in the plan.Keep your plan.
Other EE plansPlan data / 1 day: £2.72; plan data / 7 days: £16.50; plan data / 12 days: £27.50.Compare: the pass may be enough.
All O2 plansIncluded in the plan.Keep your plan.
Global Roam (Xtra) · Euro RoamIncluded in the plan.Keep your plan.
Other Vodafone plansPlan data / 1 day: £2.75; plan data / 8 days: £16; plan data / 15 days: £21.Compare: the pass may be enough.
EssentialIncluded in the plan.Keep your plan.
AdvancedPlan data / 1 day: £2.Compare: the pass may be enough.
All TELUS plansPlan data / 1 day: CA$18; plan data / 7 days: CA$50; plan data / 14 days: CA$70.Compare: the pass may be enough.
All Bell plans5 GB / 1 day: CA$16; plan data / 14 days: CA$70; plan data / 30 days: CA$320.Compare: the pass may be enough.
All Rogers plansPlan data / 1 day: CA$18; plan data / 3 days: CA$45; plan data / 7 days: CA$75; plan data / 14 days: CA$100; +1 more.Compare: the pass may be enough.
Forfait Canada et InternationalIncluded in the plan.Keep your plan.
Forfait Canada, États-Unis et Mexique · Forfaits Canada et États-Unis · Forfaits Canada et France · Other Vidéotron plansNo pass: pay as you go. (figure not confirmed by an official source)Get an eSIM.
All Telstra plansPay as you go: A$3/MB.Get an eSIM.
Choice Plus, Plus Family, Plus Promo5 GB / 1 day: A$5.Compare: the pass may be enough.
Other Optus plans1 GB / 1 day: A$10.Compare: the pass may be enough.
All Vodafone (TPG) plansPay as you go: A$1/MB.Get an eSIM.
All Vodafone Ireland plansIncluded in the plan.Keep your plan.
All Three Ireland plansIncluded in the plan.Keep your plan.
All eir plansIncluded in the plan.Keep your plan.
Roaming or eSIM — should you buy?
Arrival protocol in Saint Martin
VPN, passwords and documents
On hotel or café Wi-Fi, a VPN can be useful to keep your browsing private from the network operator. A password manager is also worth having for managing account access on the road. A secure cloud backup of your passport, visa and accommodation details can also be useful — keep an offline copy too. None of these are mandatory.
Mistakes to avoid in Saint Martin
Continuing your trip in the Caribbean?
Many travellers combine Saint Martin with neighbouring countries. See our guides for eSIM in Saint Barthélemy, eSIM in Guadeloupe and eSIM in Antigua and Barbuda. For multi-country trips combining Saint Martin with neighbouring Caribbean destinations, our Caribbean regional plan comparison may be useful.