Saint Martin eSIM

Your eSIM arrives within minutes, starts when you first connect in Saint Martin, and tops up whenever you need more.

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Before you buy, just confirm your device is eSIM-compatible and network-unlocked.

Continue · £16.99
Device Compatibility

30-day money-back guarantee, before activation

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Plan details

  • Connects on 3G, 4G and 5G where the local network has it
  • Hotspot and tethering on plans that support it, where the local network allows
  • Keep your own number, data only (no calls or texts)
  • Activates on first connection, not at purchase
  • Top up any time while your plan is running

Need broader coverage?

Regional and Global eSIMs cover Saint Martin and plenty more.

South & Central America From £6.99 20 countries

Your eSIM arrives within minutes, starts when you first connect in Saint Martin, and tops up whenever you need more.

Across Saint Martin, you're in good hands. Off to Saint Martin? You're in good hands.

Four things we'll tell you before you pay, not after.

No app, no account

Buy in your browser. Your eSIM lands in your inbox, and your phone does the rest.

How it works

You’ll know your network

200+ networks. Named on every plan. Connected via trusted networks in 195+ destinations.

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Unlimited, explained.

A daily full-speed allowance. Then 1 Mbps for the rest of the day. Your full-speed data resets the next day.

Unlimited explained

Emailed within minutes

Buy at the gate if you have to. Install now, ready when you land.

When to install

Networks vary by destination and are listed on each plan. All trade marks are the property of their respective owners. Halo is not affiliated with these operators.

Before you go.

Street view in Philipsburg — Saint Martin
Saint Martin

Staying connected in Saint Martin

A Halo eSIM for Saint Martin runs on Orange. Plans run from 1 GB to 20 GB over 1 to 45 days, with daily unlimited alongside them. It arrives by email within minutes, installs before you fly, and starts counting only when your phone first connects in Saint Martin rather than when you buy it. Every plan carries a 30-day money-back guarantee, any time before you activate. Fixed-data plans can be topped up from the same page rather than buying another.

How much data you'll need

For a short trip to Saint Martin, the smaller allowances on this shelf are usually enough: maps, messaging, transport apps and a normal amount of social media add up to a few gigabytes a week rather than tens. Push higher if you stream on the move, video call home or upload photos at full size. The shelf runs 1 GB to 20 GB, so you can start small and top up if you misjudge it.

5G

These plans carry 5G where the local network has it, on Orange, and fall back to 4G elsewhere.

Updated September 2026

Questions? We've got answers.

  • What plans are on sale for Saint Martin?

    Fixed-data Saint Martin plans come in 1, 3, 5, 10 and 20 GB, in lengths of 7 and 30 days depending on the size. Daily unlimited Saint Martin plans run for any number of days from 1 to 45. A fixed-data allowance is one pot for the whole plan, and every plan starts counting only when your phone first connects.

  • Fixed data or unlimited for Saint Martin?

    Both are on this page. A fixed-data plan for Saint Martin gives you a set allowance (1 GB to 20 GB) to spend however you like across the days you buy; a daily unlimited plan gives you a full-speed allowance that resets every day. Fixed suits a light or uneven trip, unlimited suits heavy daily use.

  • Can I call and send SMS on my Saint Martin eSIM?

    Halo eSIMs are exclusively data-only eSIMs. While you can engage in voice calls and messaging through WhatsApp, Facetime, and other widely used VOIP apps, traditional phone calls and SMS are not supported.

  • Is my device compatible with this Saint Martin eSIM?

    Most phones from 2018 onwards support eSIM, including iPhone XR and XS and newer, Pixel 3 and newer, Galaxy S20 and newer. If it's a reasonably recent phone, you're probably fine. Check our device compatibility page if you want to be sure.

  • When should I set up my Saint Martin eSIM?

    Before you leave, while you're still on Wi-Fi. Your plan only starts counting when you first connect to a network at your destination, so there's no cost to installing early. Saint Martin plans run from 1 to 45 days from that first connection. One less thing to sort at the airport.

  • Which networks does my Saint Martin eSIM use?

    Each plan lists its own networks and speed policy under Plan details on this page. Which networks a plan uses is set by our network partners and can change without notice, so we show them per plan rather than for the destination as a whole. Your device finds and connects to a supported network on its own when you arrive.

  • Can I top up my Saint Martin eSIM?

    Yes, on the fixed-data plans. Running low? Purchase another plan for the same destination from your order page. The new data gets added to your existing eSIM. No reinstall needed. Top-ups are not available on the Unlimited (daily) plans. To keep using data after an Unlimited plan ends, buy a new plan.

  • Can I hotspot with my Saint Martin eSIM?

    Hotspot availability depends on the plan. Halo adds no separate hotspot cap and does not meter hotspot data differently, so on plans that support it you can share your connection with a laptop, tablet or travel companion where the local network allows. Hotspot is provided by the network operator in Saint Martin rather than by Halo, so it is not something we can guarantee on every plan.

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