🇲🇫 eSIM plans for Saint Martin (French part)

Starting at $9.11/day*
  • No data caps
  • 7-days valid
  • Fast, reliable connection
  • Skip the roaming bill
  • QR code emailed instantly
Get your unlimited data
How many days
More days, lower daily rate
7
How many eSIMs
More eSIMs, bigger discount
1
Install it now or once you're away. Nothing starts counting until you reach your destination and switch the eSIM on.

* The "as low as" figure is the lowest per-day rate, taken from the longest unlimited data plan on sale here.

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Saint Martin (French part) eSIM travel illustration

Why buy from us?

Here's how Onetel stacks up against other options in Saint Martin (French part).

Onetel
Local SIM card
Roaming
Uncapped data plans
Activates instantly
Your number stays the same
No surprise charges
No lock-in
24/7 support
Caribbean eSIM

Cover the Region with Caribbean eSIM

Cover Saint Martin (French part) and every neighboring country on one regional eSIM — no SIM swaps, no extra fees. Starting at $3.38.

View Caribbean Plans
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eSIM costs for Saint Martin (French part)

Prices shown in USD

7 days of unlimited data in Saint Martin (French part) costs $64.64 — about $9.23 a day on Dauphin Telecom or Orange Caraïbes, with no roaming charge and no SIM to swap.

Duration Price Daily cost
1 day $10.22 $10.22/day
3 days $28.36 $9.45/day
5 days $46.48 $9.30/day
7 days $64.64 $9.23/day
10 days $91.82 $9.18/day
15 days $137.18 $9.15/day
30 days $273.20 $9.11/day
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Which networks you connect to in Saint Martin (French part)

Your eSIM roams onto Saint Martin (French part)'s own operators. These are the networks and the frequencies they run — check your phone supports them before you travel.

Operator 4G / LTE bands 5G bands 5G
Dauphin Telecom B1, B3, B20 — No
Orange Caraïbes B1, B3, B7, B20 — No

Coverage in Saint Martin (French part)

Saint Martin (French part) is a small island territory; coverage is generally limited to populated coastal areas with mountainous interior having reduced or no service. 3G (UMTS B1) remains active on all networks.

Common Questions

The details worth knowing about your Saint Martin (French part) eSIM

It connects to Dauphin Telecom (4G B1, B3, B20) and Orange Caraïbes (4G B1, B3, B7, B20). Coverage is limited to populated coastal areas; mountainous interior has reduced or no service. 3G (UMTS B1) remains active on both networks as a fallback.

Band 20 is used by both Dauphin and Orange for 4G coverage, especially in valleys and indoors. Phones from regions like the US or Asia that omit band 20 may see weaker signal or drop to 3G in those areas. Always check your phone’s band support.

No. The eSIM works only in the French territory of Saint Martin. It will not connect in the Dutch side (Sint Maarten) or neighbouring Anguilla. Service stops at the border and you would need a separate eSIM for those areas.

There are no known blocks or throttling beyond standard operator traffic management. VPNs, video streaming, and VoIP should work normally. However, speeds depend on network congestion and local signal conditions in populated coastal areas.

Visitors are often surprised that coverage in the mountainous interior is very poor or nonexistent even though the island is small. Service is reliable only in coastal towns and along main roads. Plan to download maps and messages before heading inland.
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Live chat and email are staffed the whole way through — before you fly and while you're abroad. Replies typically land in under 2 minutes.

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