Cheapest eSIM for St Martin
| Rank | Provider | Data | Validity | Price (USD) | Price per GB | Verdict | Get |
|---|---|---|---|---|---|---|---|
| 1 | MegaEsim Coupon: SUMMER10 |
10 GB | 30 Days | $5.99 | $0.60 | Best value | Get |
| 2 | MegaEsim Coupon: SUMMER10 |
20 GB | 30 Days | $13.05 | $0.65 | Great | Get |
| 3 | MegaEsim Coupon: SUMMER10 |
5 GB | 30 Days | $3.33 | $0.67 | Great | Get |
| 4 | MegaEsim Coupon: SUMMER10 |
3 GB | 15 Days | $2.10 | $0.70 | Great | Get |
| 5 | MegaEsim Coupon: SUMMER10 |
3 GB | 30 Days | $2.24 | $0.75 | Great | Get |
| 6 | MegaEsim Coupon: SUMMER10 |
3 GB | 1 Day | $2.38 | $0.79 | Good | Get |
| 7 | MegaEsim Coupon: SUMMER10 |
1 GB | 7 Days | $1.29 | $1.29 | Fair | Get |
| 8 | MegaEsim Coupon: SUMMER10 |
1 GB | 1 Day | $1.29 | $1.29 | Fair | Get |
| 9 | MegaEsim Coupon: SUMMER10 |
3 GB | 3 Days | $7.14 | $2.38 | Very expensive | Get |
| 10 | MegaEsim Coupon: SUMMER10 |
1 GB | 3 Days | $2.65 | $2.65 | Very expensive | Get |
| 11 | MegaEsim Coupon: SUMMER10 |
3 GB | 7 Days | $16.66 | $5.55 | Very expensive | Get |
| 12 | MegaEsim Coupon: SUMMER10 |
2 GB | 1 Day | $16.37 | $8.19 | Very expensive | Get |
| 13 | MegaEsim Coupon: SUMMER10 |
1 GB | 15 Days | $13.23 | $13.23 | Very expensive | Get |
| 14 | MegaEsim Coupon: SUMMER10 |
2 GB | 3 Days | $49.10 | $24.55 | Very expensive | Get |
| 15 | MegaEsim Coupon: SUMMER10 |
1 GB | 30 Days | $26.46 | $26.46 | Very expensive | Get |
| 16 | MegaEsim Coupon: SUMMER10 |
2 GB | 7 Days | $114.56 | $57.28 | Very expensive | Get |
| 17 | MegaEsim Coupon: SUMMER10 |
2 GB | 15 Days | $245.49 | $122.75 | Very expensive | Get |
| 18 | MegaEsim Coupon: SUMMER10 |
2 GB | 30 Days | $490.98 | $245.49 | Very expensive | Get |
Cheapest eSIM for St Martin: the numbers
As of 30 August 2026, 21:31 GMT, the cheapest eSIM for St Martin is MegaEsim with 10 GB for 30 Days at $5.99. That is $0.60 per GB, the best rate of the 18 plans we compare from 1 provider. 18 plans include 5G. 18 support top ups. That timestamp is the exact moment of our latest price check, and the table above always shows the live order.
Which mobile networks does St Martin have?
The island is split between France and the Netherlands and networks from both sides overlap, so phones often latch onto whichever signal is stronger near the border.
- Orange Caraibe: Orange serves the French side and its SIMs roam on the Dutch side through Telcell at no surcharge.
- Dauphin Telecom: Dauphin Telecom is the local operator of the French Caribbean islands and covers Saint Martin with prepaid offers.
- Digicel: Digicel covers the island, but its local SIMs charge roaming fees when you cross to the Dutch side.
- UTS Caraibe: UTS Caraibe, linked to the Chippie brand, holds a licence for the French side that runs from May 2025.
The eSIM plans we compare on this page connect to:
Is 5G available in St Martin?
The Arcep licences that took effect in May 2025 cover the 900 MHz, 1800 MHz and 2.1 GHz bands, which serve 2G to 4G. No 3.5 GHz 5G band has been assigned on the island.
How much data do you need in St Martin?
Light use is about 500 MB a day. That covers maps, messages, and some browsing. Normal use with photos, social apps, and short videos runs 1 to 1.5 GB a day. Streaming and hotspot use can eat 2 to 3 GB a day. Here is what each size costs in St Martin right now:
eSIM or a local SIM at the airport in St Martin?
An eSIM is ready before you land. No queue, no shop, no handing over your passport at a counter. Data for St Martin starts at $5.99 on this page, which is hard for airport kiosks to beat. A local SIM still makes sense if you need a local phone number or plan to stay for months. For a normal trip, the eSIM wins on price and effort.
Setting up your St Martin eSIM
Buy your planYou get a QR code by email within minutes of paying.
Install before you flyScan the QR code on wifi at home. Airport and hotel wifi can be weak.
Turn it on when you landEnable the eSIM and turn on data roaming for it, then give it a minute to find the network.
Check the validity clockSome plans start counting at purchase, not at first use. Check before you buy.
Good to know before you land in St Martin
The French side is an EU outermost region, so EU roam like at home applies there. The Dutch side, Sint Maarten, is outside the EU zone and can trigger extra roaming charges.
Most visitors land at Princess Juliana airport on the Dutch side, where only Flow Chippie SIMs are sold. Grand Case Esperance airport on the French side sells no SIMs at all.
Watch which network your phone picks up. A French side SIM from Orange or Dauphin roams free on the Dutch half through Telcell, but a Digicel local SIM does not, and an EU plan can bill Dutch side use at non EU rates.
St Martin Travel eSIM FAQ
Everything you need to know about using an eSIM in St Martin
What is the cheapest eSIM for St Martin?
Right now the cheapest option ranked by price per GB is MegaEsim with 10 GB for 30 Days at $5.99. That works out to $0.60 per GB. Prices change often, so the table above always shows the current order.
Which networks will my eSIM connect to in St Martin?
The plans we compare connect to Digicel, Orange. The exact network depends on the plan you pick. Check the plan details before you buy if one network matters to you.
Do St Martin eSIMs support 5G?
18 of the 18 plans we track for St Martin include 5G where the local network offers it. The rest run on 4G, which is still fine for maps, calls over apps, and video.
Can I top up my St Martin eSIM if I run out?
Yes. 18 of the 18 plans here support top ups, so you can add data without buying a new eSIM. The rest need a fresh plan once the data ends.
Will I still receive bank SMS and OTP codes?
Yes, if you keep your home SIM active. Travel eSIMs are data only. Your phone can hold both at once, so leave your normal SIM on for SMS and use the eSIM for data. Turn off roaming data on the home SIM to avoid charges.
Do these eSIMs include a phone number or calls?
The plans we compare are data only, so there is no local number. Calls work fine over WhatsApp, FaceTime, or any app that uses data. If you need a real local number, a local SIM is the better tool.
How many GB do I need for a week in St Martin?
Around 3 to 5 GB covers a week of maps, messaging, and normal browsing. Heavy video or hotspot use needs 1 to 2 GB per day. Today the cheapest plan with at least 5 GB is MegaEsim at $3.33.
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Or see every country on the cheapest eSIM index and track weekly movement on the eSIM Price Index.
How we rank
Prices last checked on 30 August 2026, 21:31 GMT across 18 plans. Every plan is ranked by the true cost per gigabyte, not marketing claims. We do not take money for rankings, and providers cannot pay for a higher position. Read the full method on our how we rank page.
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