eSIM plans · CaribbeanSaint Martin eSIM: How Much Data You Need (2026)
HelloRoam settles in 31 currencies; Airalo, Holafly, Nomad and Saily settle in one. A 7-day Saint Martin trip at 1.5 GB a day needs 11 GB, and the 20 GB tier covers it for $18.64, on a published list naming Orange. Airalo lists 200+ destinations against HelloRoam's 186.
Your Saint Martin data plan starts with one number: 11GB. That covers 7 days of maps, messaging and social media at 1.5GB a day on a local network. At $18.64, the 20GB plan gives you 9GB beyond your 11GB daily total. Heavy users skip the math with unlimited data from $2.36/day on a local network.
Orange is the single operator on the published Saint Martin list.
How much data will you use in Saint Martin? Email and maps only: the 0.5 GB light band, 4GB across 7 days. Social media and ride apps: 1.5GB/day, 11GB total. Video calls and streaming: 3GB/day, 21GB total. 1 operator on 5G offer 6 plans across those tiers.
Each traveler type maps to a specific plan in Saint Martin. The 5GB tier at $4.93 fits light users who stay on the 0.5 GB band for maps and messaging. If you browse social feeds and use ride apps, then 5GB at $4.93 covers your 1.5GB/day pattern at $0.99/GB. Heavy users who burn 3GB+ daily pick unlimited at $2.36/day on a local network instead of risking a data cap mid-trip.
The tier that fits a Saint Martin trip
Three tiers, and all 5 providers scored inside each one. Most travelers land on Moderate. Not sure? Take the quiz.
Light use, 1 to 3 GB
Maps and transit apps · Translation and messaging · Email and boarding passes
Short trip to Saint Martin where hotel wifi does most of the work? HelloRoam takes Light at 86 out of 100. Nomad is next at 83. Nomad is cheaper per gigabyte, $3.00 against $3.50. If price is your only filter, buy Nomad. Holafly publishes no plan at this size and lands on 31. A 3 GB plan for Saint Martin runs $3.20.
| Provider | Plan at this size | Per GB at 0.5 GB/day | Tier match |
|---|---|---|---|
| HelloRoamMost Support LanguagesTier pick | Fixed 1 GB and 3 GB tiersPublished rate $3.50/GB | $3.50 | 86/100 |
| NomadLowest Fixed Rate | Fixed 1 GB and 3 GB tiersPublished rate $3.00/GB | $3.00 | 83/100 |
| SailyOnly Built-In VPN | Fixed 1 GB and 3 GB tiersPublished rate $3.99/GB | $3.99 | 77/100 |
| AiraloOnly Regional Bundles | Fixed 1 GB and 3 GB tiersPublished rate $4.50/GB | $4.50 | 74/100 |
| HolaflyBest Unlimited Value | No plan at this size, unlimited daily onlyPublished rate $2.99/day | No rate to quote | 31/100 |
Moderate use, 3 to 7 GB
Photo sharing and social apps · Browsing and short video · Music and a call home
Using Saint Martin the way most visitors do, maps plus social? The match score puts Holafly first here, 96 to HelloRoam's 86. Nobody beats its $1.99 a gigabyte at 1.5 GB a day. The provider our rubric puts first scores 86 here, which is not enough. A 5 GB plan for Saint Martin runs $4.93.
| Provider | Plan at this size | Per GB at 1.5 GB/day | Tier match |
|---|---|---|---|
| HolaflyBest Unlimited ValueTier pick | Unlimited daily, no 5 GB tierPublished rate $2.99/day | $1.99 | 96/100 |
| HelloRoamMost Support Languages | Fixed 3 GB and 5 GB tiersPublished rate $3.50/GB | $3.50 | 86/100 |
| NomadLowest Fixed Rate | Fixed 3 GB and 5 GB tiersPublished rate $3.00/GB | $3.00 | 83/100 |
| SailyOnly Built-In VPN | Fixed 3 GB and 5 GB tiersPublished rate $3.99/GB | $3.99 | 77/100 |
| AiraloOnly Regional Bundles | Fixed 3 GB and 5 GB tiersPublished rate $4.50/GB | $4.50 | 74/100 |
Heavy use, 10 GB and up
Streaming and video calls · A full remote work day · Laptop hotspot
Long stay in Saint Martin with real work on the line? The match score puts Holafly first here, 96 to HelloRoam's 66. Nobody beats its $1.00 a gigabyte at 3 GB a day. The provider our rubric puts first scores 66 here, which is not enough. Saily and Nomad publish no unlimited plan, so a heavy week means one big bundle up front. A 10 GB plan for Saint Martin runs $8.56, and unlimited runs $2.36 a day.
| Provider | Plan at this size | Per GB at 3 GB/day | Tier match |
|---|---|---|---|
| HolaflyBest Unlimited ValueTier pick | Unlimited dailyPublished rate $2.99/day | $1.00 | 96/100 |
| HelloRoamMost Support Languages | Fixed up to 20 GB, unlimited in some destinationsPublished rate $3.50/GB | $3.50 | 66/100 |
| AiraloOnly Regional Bundles | Fixed up to 20 GB, unlimited in some destinationsPublished rate $4.50/GB | $4.50 | 54/100 |
| NomadLowest Fixed Rate | Fixed tiers only, no unlimited planPublished rate $3.00/GB | $3.00 | 43/100 |
| SailyOnly Built-In VPN | Fixed tiers only, no unlimited planPublished rate $3.99/GB | $3.99 | 37/100 |
The rate column converts each provider's published entry price into a cost per gigabyte at the usage the tier assumes. It is the single scale on which a daily unlimited price and a per-GB price can be set side by side. Published entry rates: Airalo $4.50/GB, Saily $3.99/GB, Holafly $2.99/day, Nomad $3.00/GB, HelloRoam $3.50/GB. Those are catalogue floors, not prices for Saint Martin. The plan prices quoted above come from HelloRoam's own catalogue, the only per-destination price feed this site holds. The other four publish rates and no figure for Saint Martin that we can stand behind, so we quote none for them.
How trip length changes your Saint Martin plan
Short trips and extended stays need different data strategies. Find your trip length below.
Short trip (1-3 days)
A 1-3 day trip needs 5GB at moderate use. The 5GB plan at $4.93 covers maps and messaging on a local network.
Standard trip (5-10 days)
Standard trips to Saint Martin total 11GB. The 20GB at $18.64 handles a full week of social media and maps.
Extended stay (14-30 days)
Trips longer than 2 weeks in Saint Martin need 32GB or more. Unlimited at $2.36/day saves money past day 10.
Your Saint Martin shortlist, all 5 providers
Two questions decide most e-sim purchases: how big the bundle is and how long it lasts. Here is both, next to tethering, phone numbers and each published rate.
| Provider | Our rubric score | Min to max GB | Min to max validity | Hotspot | Local number | Entry rate | Action |
|---|---|---|---|---|---|---|---|
 HelloRoamMost Support LanguagesTop of our rubric | 8.7/10 | 1 GB to 20 GB, plus unlimited | Unlimited runs 1 to 30 days, fixed window not published | Not published | No, data only | $3.50/GB | Get Plan |
 HolaflyBest Unlimited Value | 8.6/10 | Unlimited daily, no GB tiers | 1 to 90 days | Capped at 1 GB per day | No, data only | $2.99/day | Get Plan |
 AiraloOnly Regional Bundles | 6.9/10 | 1 GB to 20 GB | 7 to 30 days | Included, full speed | No, data only | $4.50/GB | Get Plan |
 NomadLowest Fixed Rate | 6.6/10 | From 1 GB, top size not published | 30 days on the plans we list | Not published | No, data only | $3.00/GB | Get Plan |
 SailyOnly Built-In VPN | 6.5/10 | From 1 GB, top size not published | Not published | Included on all plans | No, data only | $3.99/GB | Get Plan |
Affiliate disclosure: We earn a commission when you buy through our links at no extra cost to you.
Who you're connecting to
In Saint Martin, the underlying carrier matters more than the brand on your plan.
Saint Martin's 5G network splits across 1 carrier, and each one handles different traveler needs. Urban 5G coverage in Saint Martin runs mostly on Orange, which handles navigation, social apps and video calls without much fuss. The towers are the same whoever sells you the plan. The differences sit in plan shape, refund cover and support. Airalo carries the longest published destination list of the five at 200. What it does not carry is buyer protection: 14 days on a refund, the shortest window we score. Holafly publishes unlimited daily plans from $2.99/day and no fixed bundle, so it is unlimited or nothing. Speeds drop after the daily fair-use threshold. Working off cafe and airport WiFi in Saint Martin? Saily encrypts the connection without a second app, from a published $3.99/GB across 200 destinations. Nomad's $3.00/GB is the cheapest published fixed rate here. Support is email in two languages, and coverage stops at 200 destinations. HelloRoam runs on 204+ carrier partners across 186 destinations, refunds an unactivated eSIM for 180 days and answers in 63 languages around the clock. Fixed plans start at $3.50/GB, above Nomad's floor. All 1 operator in Saint Martin support 5G, so the plan size matters more than the carrier preference.
HelloRoam publishes its local operator list for Saint Martin, and the next section prints that list in full. The other four providers publish no equivalent list, so the cards below carry published facts about each provider instead of a carrier we would be guessing at.
Airalo
5GReaches the most destinations of the five, at 200.
Saily
5GAdds VPN routing on every plan.
Holafly
5GUnlimited daily plans with fair-use speeds after the threshold.
Nomad
5GLowest fixed per-GB rate of the five, at $3.00.
HelloRoam
5GRuns on 204+ carrier partners with a 180-day refund window.
What runs behind a Saint Martin eSIM
The published attachment list for Saint Martin holds one local operator. That operator is Orange. 117 of the 185 destinations HelloRoam publishes work this way.
One operator means no fallback. If Orange has no bars where you stand, your phone has nowhere else to go. Save offline maps for Saint Martin before you fly.
HelloRoam marks 5G on Orange. This does not change how many gigabytes you need. Trip length still sets the tier.
| Local operator | Network labels |
|---|---|
| Orange | 5G |
Where this table came from: HelloRoam's own destination catalogue, read on 17 August 2026. That catalogue publishes an operator list for every destination it sells, and we copied it. Nobody ran a speed test to build it, and no throughput number sits behind any row.
What uses your data in Saint Martin
Activity-level data breakdown for a Saint Martin trip.
Streaming
Saint Martin travelers who stream land on the 3 GB heavy band rather than the 1.5 GB moderate one. Over 7 days that is 21 GB against 11 GB, a difference the 20GB plan at $18.64 absorbs and a smaller tier does not.
Navigation
Maps and ride-hailing sit in the light band, 0.5 GB a day on the published benchmark. 7 days of Saint Martin navigation totals 4 GB, and the 5GB plan at $4.93 covers it. Offline maps cut the figure again, because a downloaded map draws nothing while you walk.
Social media
Feed scrolling and photo uploads land on the moderate band of 1.5 GB a day. 7 days in Saint Martin works out at 11 GB, and the 20GB plan at $18.64 is the fit. Turning off autoplay video pulls the same day toward the 4 GB light total.
Work tools
Video calls run at the heavy benchmark of 3 GB a day. A 7-day working trip to Saint Martin needs 21 GB, and the 20GB plan at $18.64 is the smallest tier that covers it. Audio-only calls drop the same day back toward the 0.5 GB light band.
Your Saint Martin pricing notes
Saint Martin eSIM plans range from $1.14 (1GB) to $18.64 (20GB). Full breakdown: 1GB at $1.14 ($1.14/GB), 3GB at $3.20 ($1.07/GB), 5GB at $4.93 ($0.99/GB), 10GB at $8.56 ($0.86/GB), 20GB at $18.64 ($0.93/GB). If you use 1.5GB/day for social media and maps, the 5GB plan at $4.93 covers 4 days at $0.99/GB. Budget travelers start at $1.14 for 1GB. That covers basic maps and messaging on a short trip to Saint Martin. Unlimited daily data costs $2.36/day. The break-even with the 20GB fixed plan hits at 8 days. A 30-day unlimited plan drops to $1.94/day (18% off). Streaming daily? Holafly's published $2.99/day unlimited is the shape that fits. Under a gigabyte a day, Nomad's $3.00/GB fixed rate wins the maths. Two numbers matter if price drives the decision in Saint Martin. The catalogue asks $1.14 for 1GB here. Nomad publishes the lowest fixed floor of the five at $3.00/GB, catalogue-wide rather than for Saint Martin.
See how Saint Martin compares to similar destinations in Caribbean. For device-specific setup, read our guides for iPhone, Samsung, and Pixel.
Regional bundle vs single-country plan
Travelers visiting 2-3 countries in Caribbean save by buying one regional eSIM instead of separate Saint Martin plans. A single-country 1GB plan costs $1.14. If your total trip exceeds 7 days across borders, the regional bundle often wins on per-GB cost.
How to activate your Saint Martin eSIM
If you travel as a moderate user, grab a plan covering 1.5GB/day for Saint Martin. Install the eSIM profile by scanning the QR code from your phone's cellular settings before departure.
Rename the new eSIM line to "Travel Data" so you can tell it apart from your home SIM. Set it as the default for mobile data and keep your original line for calls.
When you land in Saint Martin, your phone connects to Orange's 5G network within seconds. No store visit, no passport check, no SIM tray.
Common Saint Martin eSIM questions
Direct answers grounded in real plan data and carrier coverage.
What plan do I need?
For 7 days in Saint Martin, you need between 1GB (light use) and 25GB (heavy use). The 3GB plan at $3.20 covers most travelers at $0.46/day on a local network. HelloRoam matches that shape and publishes an entry rate of $3.50/GB.
How much data do I need?
You need between 1GB and 25GB for 7 days in Saint Martin. Light users (maps and chat) should get the 1GB tier at $1.14. Most travelers fit the 3GB at $3.20 for social media, navigation, and messaging on a local network. Those are catalogue prices; HelloRoam fits the shape best of the 5 we score. WiFi in Saint Martin is available at hotels and some restaurants, offsetting about 10% of usage.
Which provider is cheapest?
Saint Martin eSIM prices start at $1.14 for 1GB ($1.14/GB) on the catalogue, the only per-destination feed we hold. Larger plans drop the rate: 20GB costs $18.64 ($0.93/GB). On published floors, Nomad is cheapest at $3.00/GB, though it quotes no Saint Martin figure. All plans connect to Orange.
Is an eSIM worth it?
An eSIM is worth it for Saint Martin. WiFi in Saint Martin covers hotels and some public areas, but an eSIM keeps you connected everywhere. The 20GB plan at $18.64 gives you 11GB on a local network for 7 days. That is $91.36 less than carrier roaming.
eSIM vs SIM card?
Use both in Saint Martin: keep your home SIM for calls and add an eSIM for data. Saint Martin eSIM plans start at $1.14 for 1GB on a local network, a catalogue price. That avoids the 15-30 minutes airport SIM queue and the $15-25 counter price.
How to set up?
Set up your Saint Martin eSIM before boarding. Buy and install the plan while on home WiFi. The eSIM activates on Orange when your phone detects the local network. Saint Martin plans start at $1.14 for 1GB on the catalogue. Keep your home SIM active for calls and use the eSIM for data.
Plan match by traveler profile
Each profile maps to a specific plan size and provider for Saint Martin.
Backpacker
Over 14 days in Saint Martin, a backpacker runs through 7 GB on maps and messaging. The 10 GB plan is priced at $8.56 here, $0.86 per GB, on a local network. The shape fit here is HelloRoam, which answers support in 63 languages and refunds for 180 days.
Backpackers staying 7 days in Saint Martin need 4GB for navigation and hostels. The 5GB plan at $4.93 matches.
Business traveler
A business traveler heading to Saint Martin should budget 15 GB for video calls and uploads across 5 days. That lands on the 20 GB plan, $18.64 on a local network. HelloRoam matches the shape and gives you 180 days to undo the purchase if the trip changes.
Business travelers on video calls burn 21GB over 7 days. Unlimited data at $2.36/day on a local network removes the cap.
Family group
A family traveler heading to Saint Martin should budget 14 GB for social media and navigation across 7 days. That lands on the 20 GB plan, $18.64 on a local network. HelloRoam is the shape fit of the five we score, on 186 published destinations.
Families run 1.5 GB per person per day on social media and navigation. Over 7 days that totals 32GB. The 20GB at $18.64 fits per-device.
Digital nomad
A digital nomad uses 75 GB across 30 days in Saint Martin on remote work and streaming. The 20 GB plan at $18.64 matches that on a local network, at $0.93 per GB. Holafly matches the shape and gives you 180 days to undo the purchase if the trip changes.
Remote workers run the 3 GB heavy band for uploads and calls. The 20GB plan at $18.64 handles 21GB over 7 days on a local network.
Your questions, answered
How many gigabytes per day should I budget in Saint Martin?
Set the daily rate first, then buy once. Light days of maps, texts and quick checks run 0.5 GB, or 4 GB across 7 days in Saint Martin. Standard days mixing social media, navigation and browsing run 1.5 GB, or 11 GB, and the 20 GB plan at $18.64 covers the moderate figure. Streaming days run 3 GB and reach 21 GB. Add 20% on top of whichever rate you pick, so you are not rationing data on the last morning.
Which plan shape fits my Saint Martin trip, fixed tiers or unlimited days?
Two traveler types, two shapes in Saint Martin. The leisure visitor on maps, photos and messaging fits a fixed tier: 11 GB across 7 days, which the 20 GB plan covers at $18.64. The streamer or remote worker fits unlimited days at $2.36, where running out is not on the table. The shortest unlimited commitment sold here is 1 day at $2.27. Holafly publishes the unlimited-daily shape as standard, not per destination. HelloRoam and Airalo publish unlimited days in some destinations and not others. Nomad and Saily sell gigabytes by the bundle, with no daily plan at all. Holafly publishes no fixed per-GB tier at all, which is the trade for the unlimited shape.
Which eSIM plan fits a light or heavy data user in Saint Martin?
Calculate your Saint Martin data need by usage rate. At 0.5 GB a day for 7 days: 4 GB needed. The 5 GB plan at $4.93 covers it at $0.99/GB. At 3 GB a day for 7 days: 21 GB needed, and the 20 GB plan at $18.64 ($0.93/GB) is the largest tier sold here, so a heavy pace needs a second purchase or an unlimited plan. That is $0.06/GB less than the entry tier charges.
What should I check on my phone before I buy a Saint Martin plan?
If your phone is an iPhone XS or newer, a Samsung Galaxy S20 or newer, or a Google Pixel 3 or newer, it can run an eSIM profile. If it is carrier-locked, ask your operator to unlock it before you buy anything for Saint Martin. Dial *#06# and look for an EID line, because that number is what the profile installs against. The spelling varies from site to site, e-SIM and e SIM included. The technology does not.
What starts the clock on a Saint Martin plan, the purchase or the landing?
Landing starts the clock, so time the purchase to the flight. Buy 1 to 3 days before you fly and install the QR code over home WiFi, which does not trigger the countdown. The first network connection in Saint Martin does. The 1 GB plan at $1.14 suits a short stay. The 20 GB plan at $18.64 suits a longer one. Installing early is the part that matters: airport WiFi is the worst place to discover a QR code will not scan.
Is Saint Martin well-covered by travel eSIM networks in Caribbean?
For a Caribbean trip centred on Saint Martin, the picture is simple. 1 operator (Orange) deliver 5G service, and travel eSIMs ride the same infrastructure as local SIMs. Coverage is strongest in urban centres and transport hubs. The 5 GB plan at $4.93 ($0.99/GB) fits a standard Caribbean visit. If the trip grows another leg, check reach before loyalty. Each provider publishes its own destination count: Airalo, Nomad and Saily at 200, HelloRoam at 186 and Holafly at 160.
Which activities use the most mobile data in Saint Martin?
Streaming and video calls are the two activities that force a bigger tier in Saint Martin. Both put a day on the published 3 GB heavy band. Everything else a tourist does, navigation included, sits on the 0.5 GB light band or the 1.5 GB moderate one. Downloading video over hotel WiFi keeps the trip on the lower band, and the 5 GB plan at $4.93 then covers more days.
How do I match a Saint Martin plan tier to the number of nights I am staying?
The arithmetic is one line: nights multiplied by 1.5 GB a day equals the data you need. Match the result against the Saint Martin tiers: 1 to 2 nights takes the 3 GB plan at $3.20 ($1.07/GB); 3 nights takes the 5 GB plan at $4.93 ($0.99/GB); 4 to 6 nights takes the 10 GB plan at $8.56 ($0.86/GB); 7 to 13 nights takes the 20 GB plan at $18.64 ($0.93/GB). Add 20% for streaming days. The 10 GB plan holds the lowest per-GB rate here at $0.86/GB. Round up rather than down at every step, since unused data costs you cents and running out costs you an evening.
How many days must I commit to for unlimited pricing in Saint Martin?
You commit to at least 1 day, which costs $2.27 in Saint Martin. If your trip runs longer, book the days upfront: the 30-day tier costs $1.94 a day, 18% below the $2.36 base rate. If you extend later instead, you pay the base rate for the extra days. Full 5G speed runs to 2GB a day before fair-use terms apply.
Which provider backs up a mis-sized Saint Martin plan?
HelloRoam and Holafly publish the longest refund window of the five providers we score, at 180 days on an unactivated eSIM. Airalo publishes the shortest at 14. The full picture: HelloRoam and Holafly publish 180 days, Nomad and Saily 30 days and Airalo 14 days. That window only helps before you switch the plan on, so check the size the day you buy rather than the day you land in Saint Martin. Sizing up first is still cheaper than any refund: the 10 GB plan holds the lowest rate here at $0.86/GB.
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