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St. Martin eSIM
A 5 GB St. Martin eSIM costs £5.99 for 30 days on Orange with 5G. Plans start at £3.99 for 1 GB. Delivered by email in seconds.
Hop between Marigot and Philipsburg with your maps and WhatsApp ready to go. Your eSIM connects to the Orange network, so you can message friends and find your way around the island without hunting for a local SIM.
- 5G and 4G
- 1 network: Orange
- Top up anytime
- Instant email delivery
Your St. Martin eSIM in two questions
How much data do I need for St. Martin?
Pick the line that matches your trip and how you use your phone.
A long weekend in Marigot or Philipsburg: pick 1 GB a day for 3 days. That's enough for maps, messages and social media.
A fortnight touring the island: choose 10 GB for 30 days. It suits standard use, from social media and music to some video.
A month-long stay: 20 GB for 30 days is the plan for standard use across the whole stay.
A trip that also takes in a neighbour: the South America bundle covers St. Martin too, so one eSIM can see you through both. For a week of standard use, the plan to match is 5 GB for 30 days.
Every plan can be topped up, so you can add more data mid-trip if you need it.
All 41 St. Martin eSIM plans
Prices include any taxes. Price per GB shown so you can compare at a glance.
| Data | Valid for | Price | Per GB | Top-up | Buy |
|---|---|---|---|---|---|
| 1 GB · 7 days | £3.99 / €3.99 / $4.99 | £3.99 / €3.99 / $4.99 | Choose | ||
| 3 GB · 15 days | £4.99 / €4.99 / $5.99 | £1.66 / €1.66 / $2.00 | Choose | ||
| 3 GB · 30 days | £4.99 / €4.99 / $5.99 | £1.66 / €1.66 / $2.00 | Choose | ||
| 5 GB · 30 days | £5.99 / €6.99 / $7.99 | £1.20 / €1.40 / $1.60 | Choose | ||
| 10 GB · 30 days | £9.99 / €11.99 / $12.99 | £1.00 / €1.20 / $1.30 | Choose | ||
| 20 GB · 30 days | £21.99 / €25.99 / $27.99 | £1.10 / €1.30 / $1.40 | Choose |
Networks your St. Martin eSIM uses
Your eSIM joins this local network automatically, wherever you are in St. Martin.
| Country | Networks | Speed |
|---|---|---|
| St Martin | Orange | 5G |
Good to know
- Data only: your own number keeps working for calls and texts
- Hotspot works where your phone and the network allow it
- Plans start when you first connect; install within 180 days
- Your data routes through France or Netherlands or United Kingdom, so some sites may show that country
- Top up the same eSIM any time, no new QR code
Travelling further?
These eSIMs cover St. Martin and more countries on one plan.
Will my eSIM have signal in St. Martin?
Good news: your eSIM joins Orange on St. Martin, and Orange offers 5G on the island. Your phone picks Orange by itself, so there's no network to choose when you land.
The island is shared by French and Dutch sides with no border checks, so your phone may switch networks as you cross from Marigot to Philipsburg. That's normal.
Your data reaches the internet through France, the Netherlands or the United Kingdom, a normal setup for travel eSIMs. Read how your IP address works. Daily plans slow to a fair-use speed once you've used that day's allowance.
How much data do you need in St. Martin?
Light: maps, messages, email (about 0.25 GB a day). Standard: plus social, music, some video (about 0.7 GB a day). Heavy: plus streaming, video calls, hotspot (about 1.8 GB a day).
3 days
- Light · about 800 MB1 GB · 7 days · £3.99 / €3.99 / $4.99
- Standard · about 2 GB1 GB a day · 3 days · £4.99 / €5.99 / $5.99
- Heavy · about 5 GB2 GB a day · 3 days · £8.99 / €9.99 / $10.99
7 days
- Light · about 2 GB3 GB · 15 days · £4.99 / €4.99 / $5.99
- Standard · about 5 GB5 GB · 30 days · £5.99 / €6.99 / $7.99
- Heavy · about 13 GB2 GB a day · 7 days · £11.49 / €13.99 / $14.99
14 days
- Light · about 4 GB5 GB · 30 days · £5.99 / €6.99 / $7.99
- Standard · about 10 GB1 GB a day · 15 days · £9.49 / €11.49 / $12.49
- Heavy · about 25 GB2 GB a day · 15 days · £16.99 / €20.49 / $21.99
30 days
- Light · about 8 GB10 GB · 30 days · £9.99 / €11.99 / $12.99
- Standard · about 21 GB1 GB a day · 30 days · £17.99 / €21.49 / $23.49
- Heavy · about 54 GB2 GB a day · 30 days · £33.49 / €39.99 / $43.49
How to set up your St. Martin eSIM
Install at home
On Wi-Fi, tap Install on iPhone (iOS 17.4+), scan the QR code, or type the two codes from your email.
Switch on when you land
Turn on your eSIM line, choose it for mobile data and switch Data Roaming on for that line.
You're online
Your phone joins Orange and your plan starts. Check data left on your eSIM page.
Using your phone in St. Martin: arrival and WhatsApp tips
Land and switch on: Install your eSIM at home on Wi-Fi, then switch it on when you land at Princess Juliana (SXM) or Grand Case-Espérance (SFG). Turn on data roaming for the eSIM line, and your phone will connect to Orange.
Crossing the island: The island is shared by French and Dutch sides with no border checks, so don't be surprised if your phone changes networks as you cross.
Staying in touch: WhatsApp is the messaging app to use here, and your home number stays on for calls and texts. The WhatsApp guide shows how to keep both.
Data at a glance: Light use of maps, messages and email is about 0.25 GB a day, while heavy use with streaming and a hotspot is about 1.8 GB a day. Every plan can be topped up, so you can add more if your trip stretches.
St. Martin eSIM questions
How much is an eSIM for St. Martin?
St. Martin eSIMs start at £3.99 for 1 GB over 7 days. A 5 GB plan for 30 days costs £5.99. Prices include any taxes and show in pounds, euros or dollars.
Which networks does the St. Martin eSIM use?
Your eSIM connects to Orange in St. Martin, with 5G where the network has it. Your phone picks the strongest signal automatically.
When does my St. Martin eSIM start?
Most plans start the moment your eSIM first connects to a network in St. Martin, so you can buy and install it at home before you fly. Install it within 180 days of buying.
Can I top up my St. Martin eSIM?
Yes. Most St. Martin plans can be topped up from your eSIM page in two taps, with no new QR code. The plan table on this page shows which ones.
Why does my IP address show another country?
St. Martin plans route your data through France, a normal setup for travel eSIMs. Websites and apps may show that country's content; your speed and coverage in St. Martin are not affected.
Does it come with a phone number?
Every eSIMology plan is data only. Keep your own SIM switched on for calls and texts, and use WhatsApp, FaceTime or any calling app over your eSIM's data.
What if my plans change?
Cancel an eSIM you haven't installed within 30 days for a full refund to your card, in two taps from your eSIM page.
What should I do when I land at Princess Juliana (SXM) in St. Martin?
Turn on data roaming as you land at Princess Juliana (SXM) or Grand Case-Espérance (SFG), then look for Orange at the top of your screen. Once it shows, send a first message home to say you've landed.
Is there 5G in St. Martin?
Yes. Orange offers 5G on St. Martin, so if your phone supports 5G, you can use it on the island. Check your phone's specs before you travel.
How much data do I need for a week in St. Martin?
Plan on about 1.8 GB for a week of light use, like maps, messages and email. Social media, music and some video push that to about 4.9 GB, and streaming or hotspot use to about 12.6 GB.
Can I use WhatsApp in St. Martin?
Yes. WhatsApp messages and photos go over your eSIM's mobile data, so keep data roaming switched on before you send your first one. That's a simple way to keep in touch on the island.
Does my phone switch networks between the French and Dutch sides of St. Martin?
Yes, it can. The island is shared by French and Dutch sides with no border checks, so you can move between them without a stop. Your phone may switch networks as you cross.
Can I use a South America eSIM in St. Martin?
Yes. St. Martin is one of the 20 countries covered by the South America eSIM, and the Global option covers 127 countries if you're travelling on beyond the region.
Ready for St. Martin?
Buy now, install today, and your plan waits until you land. Full refund if not installed.