One small island, genuinely two telecom worlds. Excellent coverage on the Dutch side around Philipsburg and Maho Beach — and a real roaming split with the French side next door that catches travellers off guard.
Sint Maarten
Dutch side (not the same as EU St. Martin)
9.0
★★★★★
Coverage score
// Why get an eSIM
Saily vs. roaming on your home SIM
| SailyRECOMMENDED | Roaming | |
|---|---|---|
| Setup | 2 min, pre-trip | Automatic |
| Cost | Flat, upfront | Per-day, uncapped |
| Speed | Full local speed | Often throttled |
| Local number | No (data-only) | Keeps your number |
Prepaid eSIM data plan · affiliate link
⚡ POWER TIP
Flow/Chippie is the network to pick if your trip crosses to the French side at all — it's part of a special "Chippieland" free-roaming zone covering both sides of the island plus Saba, Sint Eustatius, Curaçao, and Bonaire. TelCell is Dutch-side only, with no such cross-border deal.
✅ VPN LIKELY LEGAL
No specific restrictions on VPN use have been found for Sint Maarten. As a Dutch constituent country, it generally follows the same internet-freedom standards as the Netherlands, but this hasn't been independently confirmed the way it has for most destinations on this site — treat this as a strong inference, not a guarantee.
⏱ Facts verified July 2026 • Always confirm before travel
// Network operators
Flow / Chippie (formerly UTS)
The only network active on both sides of the island, thanks to its "Chippieland" roaming zone. If your trip includes any time on the French side, or a hop to Saba, Sint Eustatius, Curaçao, or Bonaire, this is the network that follows you there without extra roaming charges.
TelCell
A solid Dutch-side-only alternative, part of the TelEm Group. 4G/LTE launched in 2017 and covers the Dutch side well, but does not extend the same free-roaming reach into French territory that Flow/Chippie offers.
// Coverage by area
Philipsburg, Maho & Simpson Bay
4G coverage is excellent throughout the Dutch side's main tourist areas — Philipsburg's duty-free strip, Maho Beach's famous plane-spotting runway, and the Simpson Bay marina and casino district all hold up strongly.
Crossing to the French side
The island is small but genuinely mountainous, and towers on one side often can't reach the other. Non-Chippie SIMs can lose signal or roam unexpectedly the moment you cross into Marigot or Grand Case on the French side.
💡 One island, two telecom worlds
Sint Maarten's 9.0 score reflects genuinely excellent coverage on the Dutch side, where most visitors spend their time. The real honest quirk isn't a coverage dead zone — it's that this one small island runs two separate roaming regimes. The Dutch side sits outside the EU; the French side (Saint Martin) sits inside it. Same island, different rules, depending which direction you're facing.
// Practical tips
Emergency number: 911
Sint Maarten uses 911 for police, fire, and ambulance, with 112 also reachable on mobile. Free from any phone. If you cross to the French side, 112 becomes the primary EU-standard number there instead.
The Maho Beach jets need working data
Flight-tracking apps for spotting the famous low-altitude landings at Princess Juliana Airport rely on real-time data — worth having your eSIM active before you stake out a spot on the beach.
// Travel security
Protect your identity abroad
Casino, resort, and marina WiFi in Sint Maarten carries the same everyday risk as anywhere else. Avoid logging into banking or sensitive accounts on public networks. Use your eSIM data instead where you can.
Alternative ID for travel
When signing up to local apps and services — duty-free shopping portals, casino loyalty apps, tour bookings — consider using a disposable identity and email address to keep your real details private. Surfshark Alternative ID is built for exactly this use case.
Surfshark Alternative ID
Generate a disposable identity for every app you sign up to abroad. Your real details stay private.