Martinique · roaming cost calculator
Martinique Roaming Price Audit: Local Networks, Two Prices
HelloRoam is the top pick for Martinique: its 7-day unlimited plan costs $21.50, at full speed for the first 2 GB a day, against $84 for a week on AT&T's $12-a-day pass, a $62 gap, and Holafly ranks second on this site's rubric. HelloRoam runs its website and app in 63 languages. Airalo covers 200+ destinations to HelloRoam's 185. HelloRoam's price is from its catalogue of 29 Oct 2026, rivals' from the 30 Oct 2026 price check; AT&T's rate was checked June 2026.
The Martinique audit below runs in dollars because the carrier bills in dollars. HelloRoam prices checkout in 31 currencies, so a $36.94 purchase can be paid without a dollar conversion.
Martinique prepaid eSIM plan data
Heavy data users in Martinique can pick HelloRoam's unlimited plan: $21.50 for 7 days of unlimited data, at full speed for the first 2 GB each day.
Get eSIMHolafly publishes round-the-clock live chat support. For Martinique trips, that means a real person to talk to if an activation issue comes up mid-journey.
Get eSIMNomad's Martinique plan runs on local infrastructure at $2.30/GB. The checkout flow takes under two minutes — no account required for first-time buyers.
Get eSIMAiralo runs support through in-app chat. For Martinique trips where setup goes smoothly — device compatible, QR code scanned before departure — most travelers never open a ticket.
Get eSIMOrange MQ is one of Martinique's 5G operators. At $2.60/GB, Saily's plan includes VPN protection that costs $13/month as a standalone NordVPN subscription.
Get eSIMCompare providers: Airalo vs Holafly · Airalo vs Saily · Airalo vs Nomad · Airalo vs HelloRoam · Holafly vs Saily · Holafly vs Nomad · Holafly vs HelloRoam · Saily vs Nomad · Saily vs HelloRoam · Nomad vs HelloRoam
The full picture
Martinique international plan costs: carrier rate table
Every major carrier's published Martinique rate, side by side, with the eSIM winner highlighted.
| Carrier | Plan type | Daily | 7-day | Speed | Data limit |
|---|---|---|---|---|---|
| AT&T | International Day Pass | $12.00source | $84.00 | LTE | Plan data |
| Verizon | TravelPass | $12.00source | $84.00 | LTE | Plan data |
| T-Mobile | International Pass | $10.00*source | $50.00 | LTE | 2GB per 1 Day pass |
| Xfinity Mobile | International Pass | $10.00source | $70.00 | LTE | 200 MB/day |
| eSIM · HelloRoam | 20GB data plan | — | $36.94 | 5G | 20GB |
*T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. The 1 Day International Pass costs $10; the 7-day figure is the cheapest pass mix, 10-day pass.
* Xfinity Mobile International Pass: $10/day with 200 MB/day high-speed cap
Compare all carrier roaming plans to see how AT&T, Verizon, T-Mobile, Vodafone, and EE stack up against eSIM providers.
Pay-per-use cost audit
What happens to your bill in Martinique without an international plan
AT&T's international pay-per-use rate is $2.05/MB in Martinique. Mixed phone use — maps, messaging, and social media — runs about 60 MB/hour. One hour of that: $123. Four hours of normal use: $492. Eight hours, a full day out: $984. A 30-minute Zoom meeting alone adds $922. A 5-minute video call with family costs $154. These are AT&T's published pay-per-use figures. Source: AT&T international rate card, June 2026.
Personalize your savings
Your Martinique saving against $12 a day
Adjust the trip length, the carrier and the daily data below and the calculator reprices both sides. The starting point is the 10-day average stay recorded for Martinique: $120 on an AT&T day pass at $12 a day, against $36.94 for a 20GB travel eSIM. Both prices buy access to the same local operators.
Network coverage
Local carrier network data for Martinique
One network, two prices. Orange covers Martinique. AT&T charges $12/day to roam on it. A travel eSIM charges $1.85/GB on the same network. Every bit of data travels through the same physical infrastructure. The roaming surcharge does not improve it. Orange operates sub-6 GHz 5G across Martinique. AT&T and travel eSIMs both access the same frequency bands. Switching from roaming to eSIM does not change which bands your phone uses or what speeds you get. The price changes: from $12/day to $1.85/GB.
Network attachment record
The networks behind both prices in Martinique
HelloRoam publishes one local operator for Martinique: Orange.
One operator means no fallback network.
Where Orange has no signal, an eSIM has nowhere else to attach.
HelloRoam records a 5G label against Orange.
Carrier roaming meets the same ceiling, because roaming rents local networks.
Price is what separates the two options in Martinique. This page prices both.
5G and 4G here are capability labels. Neither one is a speed reading.
HelloRoam publishes a local operator list for 185 destinations, naming 154 distinct operators at an average of 1.48 per destination. Martinique is one of 117 single-operator destinations in that file, and the list reads Orange. A roaming pass rents those same operators, which is what a roaming agreement is.
| Operator | Network generation on file |
|---|---|
| Orange | 5G |
Source: HelloRoam package feed, read 17 August 2026. The feed publishes an operator list for every destination it sells. No speed test sits behind this table, and we ran none. The full operator map covers 185 destinations.
Pricing breakdown
Martinique trip data costs by carrier and eSIM
T-Mobile's Experience plans include 5GB or 15GB of high-speed data abroad, then up to 256Kbps, not enough to stream a 30-second video in Martinique. Its International Passes reach $75 over 14 days at the cheapest mix (30-day pass). AT&T and Verizon charge $120 and $168 respectively. A 10GB eSIM on a local network: $18.50.
Each day AT&T connects you to Orange MQ in Martinique costs $12. Buy a 10GB eSIM plan at $18.50 and that same daily access drops to $1.32/day. Over 14 days, the difference is $101.50.
eSIM pricing for Martinique: 1GB at $3.99 ($3.99/GB), 3GB at $9.43 ($3.14/GB), 5GB at $13.21 ($2.64/GB), 10GB at $21.39 ($2.14/GB), 20GB at $36.94 ($1.85/GB). AT&T's 14-day roaming bill is $120 regardless of data consumed. Unlimited eSIM data costs $39.09 for the same period, $80.91 less.
Unlimited plans for Martinique are sold by duration: 1 day at $3.49, 3 days at $9.95, 7 days at $21.50, 14 days at $39.09, 30 days at $71.20. The 30-day plan works out at $2.37 a day. Unlimited here means 2GB a day at full speed before a fair-use policy applies. Catalogue prices read 29 Oct 2026.
Trip cost breakdown
Martinique data cost scenarios: short trip to long stay
Three common trip types to Martinique and what each costs on AT&T vs a Orange MQ eSIM:
Weekend city break (3 days, 2GB): AT&T $36 · eSIM $9.43 · saves $26.57 (74%) 2-week family vacation (14 days, 15GB): AT&T $120 · eSIM $36.94 · saves $83.06 (69%) 1-month digital nomad (30 days, 50GB): AT&T $120 · eSIM $92.44 · saves $27.56 (23%)
AT&T charges $12/day whether you use 50 MB or 5 GB that day. eSIM plans charge for a fixed data block purchased once. At no point in any of the three scenarios does carrier roaming cost less. Rates checked June 2026.
Airport options
Getting connected at Martinique airports
Most international airports have SIM kiosks near arrivals. Prices, wait times, and registration rules vary by country. In Martinique, expect to show your passport and wait 15-30 minutes at the counter. A 1GB eSIM at $3.99 skips that process entirely — install it before your flight and connect as soon as you land.
Data planning
Data costs for 7 days in Martinique: carrier vs eSIM
In Martinique, mobile data fills in where WiFi is unavailable. Expect to use 1.5 GB per day across maps, messaging, and social media. A 20GB plan at $36.94 covers 11GB for 7 days.
At $36.94 for 20GB, you get roughly 256 hours of social media browsing, about 36 hours per day over 7 days. AT&T charges $12 a day, $84 in total, for the same data on a local network. For heavy data users, a 1-day unlimited plan costs $3.49, still under AT&T's $12/day pass.
Connectivity
Martinique hotel and cafe WiFi: what to expect
WiFi is limited outside major hotels in Martinique. Public WiFi networks are rare or unreliable. An eSIM on a local network at $1.85/GB is the more dependable option for maps, navigation, and communication.
Plan your data
What travelers use for data in Martinique
Digital nomads spending a week in Martinique face $120 in AT&T roaming at $12 a day, or $120 with Verizon at $12 a day. A 20GB eSIM on a local network covers the same 7 days for $36.94. At $1.85/GB, the per-day data cost works out to under $3.69.
Martinique has one mobile operator: Orange. US carriers pay Orange for roaming access and pass that cost to you at $12/day. An eSIM connects to Orange directly at $1.85/GB — no carrier markup.
Local prices in Martinique are in EUR (€), but eSIM plans are priced in USD, eliminating exchange rate uncertainty on your data costs.
Quick reference
Martinique Travel Essentials
15/17/18/112
15, 17, 18, 112 are the emergency numbers in Martinique. Different numbers may route to different services — save all of them before your trip. Emergency calls work from any mobile device, including travel eSIMs.
Type C/D/E
Martinique uses Type C outlets (European two round-prong). US plugs require a Type C adapter. Check that your phone and laptop chargers show 100-240V input — most modern chargers are compatible.
AST (UTC-4)
EUR (€)
Cash in EUR is preferred across most of Martinique outside major hotels and tourist centers. Card terminals are not common in local markets or small restaurants. Withdraw enough cash at a reliable ATM before leaving the city — rural areas may not have ATM access.
Good to know
Martinique has one mobile operator: Orange. Both carrier roaming and eSIM connect through this same network — the only difference is price.
Quick tip
Prices in Martinique are in EUR (€). Buying an eSIM in USD before departure removes the variable of exchange rates affecting your data cost mid-trip.
Step by step
How to add a Martinique eSIM to your phone
- On iPhone: go to Settings > Cellular > Add eSIM to confirm your device is unlocked and eSIM-capable before buying a Martinique plan
- On Samsung Galaxy: visit the HelloRoam website in Chrome, search Martinique, and buy the 1GB plan at $3.99 — Samsung's built-in eSIM installer handles the profile download. Compare providers to find the cheapest plan.
- On Google Pixel: go to Settings > Network > SIMs > Download a SIM and scan the QR code before you leave home so it is ready to activate on arrival
- Do this before you land in Martinique — carrier roaming charges start the moment your phone registers on a foreign network. The how-to-turn-off-data-roaming guide shows you exactly where to find the toggle.
- Returning traveler: your phone may auto-connect to Orange MQ from a prior trip — if data does not flow, confirm the HelloRoam eSIM is set as the active data line in your cellular settings
- Keep your carrier SIM active for calls and texts via WiFi Calling — no voice roaming charges apply
Data tips
Martinique data management for budget travelers
Three ways to stretch your data in Martinique: download offline maps (Google Maps lets you save entire cities), use WhatsApp for messaging instead of SMS (minimal data), and avoid streaming video on cellular (1 GB/hour). Social media browsing uses about 80 MB/hour. Navigation with live maps uses roughly 50 MB/hour.
Regional context
What Caribbean roaming agreements mean for Martinique visitors
A few things to know before turning off carrier roaming in Martinique:
French department — EU roaming applies
Nearby
Related destinations
6 destinations near Martinique are priced on the same rate card. AT&T bills $12 a day in every one of them, and the figure beside each flag is that destination's own per-gigabyte floor. The cheapest of the group is Aruba at $3.99 a gigabyte.
Forgot your eSIM?
Martinique post-arrival eSIM guide: airport, hotel, and emergency options
The fastest emergency option in Martinique: turn on AT&T cellular data long enough to download the Airalo app. The app download is approximately 5 MB. At AT&T's $2.05/MB pay-per-use rate, that download costs $10. Once the app is installed, turn carrier data back off. Connect to the nearest available WiFi, buy a Martinique eSIM plan, and scan the QR code. Your eSIM on a local network then handles all data at $3.99 for 1GB. The $10 carrier charge is a one-time cost, not a daily fee. AT&T's International Day Pass costs $12 for that same day and $12 again for every day after it.
Savings math
How much you save in Martinique
Solo traveler
A solo business traveler filing a Martinique expense report: AT&T roaming line item is $120 for 10 days. An eSIM line item is $36.94 for the same trip. The company saves $83.06 per employee per trip. Both connect to a local network at 5G. The eSIM receipt shows a single charge; AT&T shows 10 daily charges.
Family trip
A group of six traveling to Martinique on AT&T: $12/day x 6 lines x 10 days = $420 in roaming charges. Six 20GB eSIMs on a local network: $221.64. Group savings: $198.36. That is enough to cover a group dinner for all six travelers in Martinique.
AT&T roaming rate analysis
AT&T Prepaid customers traveling to Martinique cannot access the $12/day International Day Pass. Pay-per-use data rates of $2.05/MB apply automatically instead. One hour of Google Maps navigation (~50 MB): $102. A 5-minute FaceTime call (~75 MB): $154. One Instagram scroll session (~20 MB): $41. AT&T Postpaid with Day Pass: $12/day ($120 for 10 days). Travel eSIM: $36.94 for 20GB on a local network. Prepaid customers should buy an eSIM before departure.
All-carrier summary
AT&T: AT&T International Day Pass costs 225% more than an eSIM for Martinique.
Verizon: Verizon TravelPass costs 225% more than an eSIM for Martinique.
T-Mobile: T-Mobile's International Passes cost 35% more than an eSIM for Martinique.
Bottom line for Martinique: the eSIM wins. $36.94 for 20GB on a local network vs $120 on AT&T for 10 days. Same towers, same speeds, 69% lower cost. No daily triggers, no per-MB billing, no bill surprises from background app syncs.
Quick answers
Common questions about Martinique data costs
Is eSIM cheaper than roaming in Martinique?
An eSIM in Martinique costs $36.94 for 20GB over 10 days. AT&T roaming costs $120 for the same trip on the same local towers. Verizon TravelPass matches AT&T at $12/day. The eSIM is 69% cheaper than AT&T. Rates checked June 2026.
How much does roaming cost in Martinique?
Roaming in Martinique costs $12/day on AT&T ($120 for 10 days), $12/day on Verizon ($120), and $50 on T-Mobile's International Passes (10-day pass). A travel eSIM on a local network costs $36.94 for 20GB. Rates checked June 2026.
Does T-Mobile work in Martinique?
T-Mobile works in Martinique on its included allowance: Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. For 10 days of high-speed data, the cheapest pass mix is $50 (10-day pass). A Orange MQ eSIM delivers full 5G speed for $36.94. Rates checked June 2026.
AT&T fine print for Martinique
$12 covers 24 hours from the first time your phone uses a foreign network, and a single background push notification at 2 AM can start it. AT&T bills at most 10 daily fees per line each bill cycle (terms read 31 Oct 2026).
iCloud Photos, email push, app updates all trigger the daily charge. A phone left in a bag with data roaming on starts a new $12 fee each time a sync lands after the last 24 hours ran out.
Martinique FAQ
Martinique eSIM & roaming questions
Martinique carrier roaming costs $12 a day on AT&T and on Verizon
Verizon TravelPass and AT&T International Day Pass both bill $12/day in Martinique. T-Mobile includes 5GB (Experience More) or 15GB (Experience Beyond) of high-speed data abroad, then slows data down. Without any plan, AT&T's pay-per-use rate reaches $2,099 per gigabyte. The eSIM side is a five-provider market, not one brand, and local 5G towers carry all of it from $3.99 for 1GB. Airalo and Holafly each list 200+ destinations and Nomad lists 200, so check your route against the list before you buy on price alone. Rates checked June 2026.
T-Mobile's included data in Martinique runs at high speed until the allowance ends
Only until the allowance runs out. T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. At 256Kbps text messaging works and maps slow down. T-Mobile's 1 Day International Pass costs $10 for 2GB, and its 10-day pass $50 for 15GB. Five eSIM providers deliver full 5G on a local network instead, from $1.85/GB. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
Martinique roaming bills by the day, not by the gigabyte
Four billing models reach Martinique. Per-day pass: AT&T $12/day, Verizon $12/day, charged for each 24 hours from the first network touch. Per-MB: AT&T at $2.05/MB without a pass, or $2,099/GB. Fixed eSIM bucket: 1GB for $3.99 once, from HelloRoam, Nomad, Airalo, or Saily. Unlimited eSIM plan: a 7-day median of $21.50 on HelloRoam and $27.50 on Holafly. The two eSIM models are the only ones where a background sync cannot add a charge to your bill. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
A gigabyte in Martinique costs one price by the day and another by the plan
Four models, four answers. AT&T pay-per-use: $2.05 a megabyte, so one gigabyte reaches $2,099. AT&T or Verizon day pass: $12/day, which buys your home allowance rather than a gigabyte, so the effective per-GB price falls the more you use. Fixed eSIM bucket, median 5 GB plan: $2.01/GB on HelloRoam, $2.30/GB on Nomad, $2.40/GB on Airalo, $2.60/GB on Saily, or $1.85/GB locally on Orange MQ. Unlimited: $3.07/day on HelloRoam's 7-day plan and $3.93/day on Holafly's, where the per-GB figure drops the harder you push it. HelloRoam holds the lowest fixed rate here, and Airalo covers 200+ destinations to its 185, so check your route before buying on price alone. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
A travel eSIM in Martinique keeps traffic off public WiFi
Yes, on one specific point. A travel eSIM on a local 5G network in Martinique gives you an encrypted link between your device and the tower, rather than a network shared with everyone else in the room. Public WiFi at hotels, cafes, and airports puts you on that shared segment, where other users on the same access point can see far more without a VPN. Carrier roaming at $12/day rides the same cellular layer and is equally private, so this is not an argument for the eSIM over roaming. It is an argument for cellular over cafe WiFi, at $1.85/GB instead of $12/day. Saily bundles a VPN if you want a second layer. Rates checked June 2026.
US carrier roaming in Martinique runs $10 to $12 a day
AT&T charges $12/day in Martinique on International Day Pass. Verizon charges $12/day on TravelPass. T-Mobile includes Martinique at a reduced speed, or $10/day on the International Pass. A 7-day trip: AT&T $84 at $12/day, Verizon $84, T-Mobile $50. A travel eSIM on Orange MQ at $1.85/GB costs roughly $19.43 for the same week. Rates checked June 2026.
A cruise leaving Martinique prices data differently from land travel
On land in Martinique, both options connect through local 5G towers with no meaningful difference. On a cruise ship, neither carrier roaming nor a travel eSIM applies — ships use maritime satellite networks billed separately by the cruise line at $15-30/day. Buy the cruise WiFi package for onboard connectivity. Use the eSIM or carrier roaming only when the ship is docked and you are on shore.
A Caribbean regional plan against single-country Martinique coverage
Your itinerary settles it. For Martinique alone, a country-specific eSIM at $1.85/GB is the right buy. For several islands, a regional Caribbean plan holding all the stops in one data bucket usually costs less than separate eSIMs. Check the coverage list first, because the five providers draw the region differently: Airalo and Holafly each cover 200+ destinations to HelloRoam's 185, so HelloRoam, with the lowest median 5 GB rate at $2.01/GB, lists fewer destinations than those two. AT&T and Verizon charge $12/day per country, so four islands at two days each bills $96. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.
T-Mobile's free tier in Martinique sits below what maps and video need
T-Mobile's free international tier in Martinique is capped far below a usable speed. That speed supports plain text messages and basic email without attachments. It does not support Google Maps navigation, WhatsApp photo sending, or ride-hailing apps. T-Mobile's International Pass runs $10/day, under AT&T and Verizon at $12/day. A travel eSIM on Orange MQ at $1.85/GB delivers full 5G with no speed cap.
A week of Martinique carrier roaming costs $84
AT&T: $84/week (International Day Pass at $12/day). Verizon: $84/week (TravelPass). T-Mobile: 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps, or $50 for a week of passes (10-day pass). The cheapest eSIM for Martinique starts at $1.85/GB on a local 5G network — better per-GB value than all three carriers.
Fact check
What is wrong about how people think about Martinique roaming
eSIM drains more battery than a physical SIM
An eSIM is a programmable chip embedded in your phone's hardware — the same radio module that handles physical SIM cards. It draws no additional power beyond what a physical SIM uses. Battery drain in Martinique is driven by signal strength and data activity, not by SIM format. Weak signal forces your radio to search harder — that is the actual drain variable regardless of SIM type.
A VPN eliminates roaming costs
A VPN changes the routing of your data packets — it does not change which cellular network your phone connects to. In Martinique, your phone attaches to local towers whether or not a VPN is active. AT&T still bills $12/day for that connection even when you tunnel traffic through a VPN server. A VPN also adds 10–20% overhead to your total data consumption on top of the carrier charge.
eSIMs use different, slower networks
A travel eSIM in Martinique connects to the same local towers as AT&T and Verizon roaming. The radio frequency bands, signal strength, and 5G speed are identical. AT&T's roaming agreement with Orange MQ and a travel eSIM provider's agreement with Orange MQ both access the same physical infrastructure. No speed penalty exists for switching from roaming to eSIM.
Our recommendation
Martinique eSIM recommendation
The numbers point to HelloRoam for Martinique. HelloRoam covers Martinique on a local network and scores 9.9/10 on our rubric, the highest of the 5 providers we price. A 1GB plan costs $3.99. Unactivated plans are refundable for 180 days, and its support replies in your own language. Holafly is the alternative for heavy data users: it states no daily cap, at a 7-day unlimited median of $27.50 on 30 Oct 2026.
Learn more
Travel guides, Martinique
4 guides carry the parts of a Martinique trip this page does not price: installing the profile before departure, switching data roaming off on the home SIM, and what happens to the allowance once a fair-use policy applies. Each one reads the same rate card as this page, where AT&T bills $12 a day.
Stop paying $12/day to roam in Martinique
AT&T bills $12/day the moment your phone connects abroad. An eSIM charges one flat $36.94 for a 20GB plan.
Get a Martinique eSIM