Savings Calculator
How Much You Save with eSIM vs Carrier Roaming in Sint Maarten (2026)
AT&T charges $10/day in Sint Maarten. Verizon charges the same. Over 10 days, that bill reaches $100. A travel eSIM on TelCell (TelEm)'s 4G LTE network costs $8 — 92% less. Here is the full breakdown.
Your carrier's roaming rate in Sint Maarten
| Carrier | Plan | Daily Rate | 7-Day Cost |
|---|---|---|---|
| AT&T | International Day Pass | $10/day | $70 |
| Verizon | TravelPass | $10/day | $70 |
| T-Mobile | Magenta (high-speed add-on) | $15/day | $105 |
| Xfinity Mobile | International Pass | $10/day | $70 |
AT&T International Day Pass
TelCell (TelEm) operates the 4G LTE towers in Sint Maarten. AT&T resells access at $10/day. An eSIM accesses TelCell (TelEm) directly from $1.60/GB.
Verizon TravelPass
Verizon's $10/day pass in Sint Maarten draws from your existing home-plan data bucket. Customers on base-tier plans with 5GB/month find they exhaust home data faster when roaming counts against the same pool.
T-Mobile Magenta (high-speed add-on)
One week of T-Mobile roaming in Sint Maarten costs $105 ($15/day through TelCell (TelEm)). An eSIM on TelCell (TelEm) starts at $1.60/GB for the same connection.
Xfinity Mobile International Pass
One week of Xfinity Mobile roaming in Sint Maarten costs $70 ($10/day through TelCell (TelEm)). An eSIM on TelCell (TelEm) starts at $1.60/GB for the same connection.
eSIM alternative cost for Sint Maarten
Plan tiers for Sint Maarten
| Tier | Price | Per GB |
|---|
Which provider covers Sint Maarten
The primary provider for Sint Maarten is Holafly, connecting to TelCell (TelEm)'s 4G LTE network. Compare all eSIM providers
Savings breakdown
| Trip Length | AT&T | Verizon | T-Mobile HS | eSIM | You Save |
|---|---|---|---|---|---|
| 3 days | $30 | $30 | $45 | $8 | $22 (73%) |
| 7 days | $70 | $70 | $105 | $17.60 | $52.40 (75%) |
| 14 days | $140 | $140 | $210 | $33.60 | $106.40 (76%) |
| 21 days | $210 | $210 | $315 | $51.20 | $158.80 (76%) |
| 30 days | $300 | $300 | $450 | $72 | $228 (76%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $100
eSIM: $8
Save $92
Couple
Carrier: $200
eSIM: $16
Save $184
Family of 4
Carrier: $400
eSIM: $32
Save $368
Trip length calculator
How much data you need
Maps & navigation
50 MB/hr
Social media
80 MB/hr
Video calls
250 MB/hr
Photo uploads
10 MB/photo
Music streaming
70 MB/hr
Web browsing
60 MB/hr
WiFi availability in Sint Maarten
WiFi in Sint Maarten is rated good. Good WiFi at hotels and restaurants throughout the island
Real savings scenarios for Sint Maarten
Solo traveler
Solo trip to Sint Maarten, 10 days. AT&T: $10/day x 10 = $100. Verizon: $10/day x 10 = $100. T-Mobile high-speed: $15/day x 10 = $150. eSIM 15GB on TelCell (TelEm): $24. The eSIM saves $76 vs AT&T, $76 vs Verizon, and $126 vs T-Mobile's paid tier.
Family trip
Families with mixed carriers — one parent on AT&T, one on Verizon, kids on T-Mobile — face $50/day in combined roaming for Sint Maarten. Over 10 days: $500. Four eSIMs on TelCell (TelEm) at $24 each: $96. Savings: $404. One purchase per person, no coordination between carriers.
Business trip
Five employees attending a conference in Sint Maarten for 5 days: AT&T roaming for the team: 5 x $10/day x 5 = $250. Five 13GB eSIMs: $104. Team savings: $146. All five connect to TelCell (TelEm)'s 4G LTE network. The eSIM receipts are cleaner for expense processing: one charge per person, no daily line items.
Long-stay and digital nomads
Seasonal residents spending 60-90 days in Sint Maarten: AT&T roaming at $10/day for 60 days = $600. For 90 days: $900. Multiple eSIM plan purchases for 90 days run roughly $432. At these durations, a local SIM card or a monthly local plan becomes the most cost-effective option. But compared to keeping AT&T or Verizon roaming active, an eSIM saves $468 over a 90-day stay.
Frequent traveler annual savings
Frequent travelers to Sint Maarten (4 trips/year) face $400 in annual AT&T roaming charges. Four 15GB eSIMs total $96 for the same year. Annual savings: $304. All eight connections (4 AT&T, 4 eSIM) route through TelCell (TelEm)'s 4G LTE towers.
Extended stay economics
A remote worker billing a client for Sint Maarten connectivity: AT&T line item: $300/month. Coworking space WiFi in Sint Maarten: $50-$150/month. eSIM on TelCell (TelEm): $96/month. The eSIM provides cellular backup when coworking WiFi drops during client calls. AT&T's Day Pass does the same but costs $204 more per month. Over a 3-month stay: AT&T totals $900, eSIM totals $288.
Frequent flyer savings
AT&T roaming of $100 for 10 days in Sint Maarten represents 3-7% of a typical international trip budget ($1,500-$3,000 for flights, hotel, food). An eSIM at $24 drops that line item to under 1%. Over 2 annual trips, roaming goes from $200 to $48. That $152 pays for an extra dinner and museum visit per trip.
Data usage savings
A traveler using Google Maps 3 hours/day in Sint Maarten consumes 24 MB/day in navigation data. Over 10 days: 240 MB (0.2 GB). AT&T charges $10/day regardless of how little data you use. An eSIM at $1.60/GB on TelCell (TelEm) charges $0.38 for navigation alone. The eSIM's per-activity cost is a fraction of the per-day fee.
Couples trip savings
The lowest-cost option for couples in Sint Maarten: one 15GB eSIM at $24, shared via hotspot. The second phone connects through the first phone's WiFi hotspot. Total cost: $24 for both devices over 10 days. Compare: AT&T charges $200 for two lines ($10/day each). Savings: $176. Trade-off: the second phone needs to stay within WiFi hotspot range of the first.
UK carrier comparison
Vodafone and EE apply fair-use data caps to roaming in Sint Maarten. Once the cap is reached, speed drops to near-2G levels while the GBP6/day charge continues. The fair-use threshold is not published prominently. A 15GB eSIM at $24 has a stated data ceiling with no hidden throttle. You know exactly how much data you get and the speed does not degrade until the plan is fully consumed.
Our verdict
Bottom line for Sint Maarten: the eSIM wins. $24 for 15GB on TelCell (TelEm) vs $100 on AT&T for 10 days. Same towers, same speeds, 76% lower cost. No daily triggers, no per-MB billing, no bill surprises from background app syncs.
How much can I save with eSIM in Sint Maarten?
eSIM savings in Sint Maarten scale with trip length. A 7-day trip saves $60.01 vs AT&T ($70 roaming vs $9.99 eSIM). A 14-day trip saves $130.01 ($140 vs $9.99). Both connect to TelCell (TelEm)'s network. Rates verified June 2026.
How much does roaming cost in Sint Maarten?
US carriers charge $10/day for Sint Maarten roaming. UK carriers charge approximately GBP6/day. A 10-day trip costs $100 on AT&T or Verizon. A travel eSIM on TelCell (TelEm) costs $9.99 for 5GB. Verified June 2026.
Sint Maarten network context
Local networks
Sint Maarten has 2 mobile networks. The primary carriers are TelCell (TelEm), Flow.
Connectivity notes
- Island shared with French Saint-Martin — different carriers on each side
- US dollar widely accepted
- Famous for low-altitude plane landings at Maho Beach
Quick tip
WiFi availability in Sint Maarten is rated good. Enabling WiFi Calling on your phone before departure lets you receive calls and texts over hotel or cafe WiFi without triggering a carrier roaming day pass.
Good to know
Sint Maarten's WiFi availability is rated good. Relying on hotel WiFi alone means no connectivity during inter-island transfers or boat trips. An eSIM at $1.60/GB covers those gaps.
Frequently asked questions
- How much does AT&T roaming cost for 10 days in Sint Maarten?
- AT&T International Day Pass charges $10/day in Sint Maarten. A 10-day trip costs $100 in roaming charges. This activates automatically when your phone connects to a local network abroad.
- Is a travel eSIM cheaper than Verizon TravelPass in Sint Maarten?
- Verizon TravelPass charges $10/day in Sint Maarten. A 10-day trip costs $100. A 5GB eSIM covers the same trip for $8 on the same local network — saving you 92%.
- How much data do I need for a week in Sint Maarten?
- Most travelers use 1-2 GB per day for maps, messaging, social media, and light browsing. A 7-day trip needs 7-14 GB. Video calls and streaming push usage to 3+ GB per day. Choose a 10GB or 20GB plan for heavy use.
- Can a family share one eSIM in Sint Maarten?
- One eSIM stays in one phone, but most eSIM plans allow tethering (personal hotspot). A family of 4 can share a single 10-20GB eSIM through one phone's hotspot instead of paying $10/day per person for carrier roaming.
- Does T-Mobile free data work in Sint Maarten?
- T-Mobile Magenta includes free data in Sint Maarten, but speed is capped at 256 Kbps. That is too slow for Google Maps, video calls, or uploading photos. The high-speed add-on costs $15/day.
- How much does a 30-day eSIM cost for Sint Maarten?
- A 30-day eSIM for Sint Maarten depends on data volume. Metered plans (5-20GB) typically range from $8 to $35. Unlimited daily plans run $1-2/day. Both connect to the same local network as carrier roaming at a fraction of the cost.
- How much does carrier roaming cost in Sint Maarten?
- T-Mobile includes Sint Maarten in its free international plan, but throttles every connection to 256 Kbps — one-eighth the speed of basic 2G. AT&T costs $10/day, Verizon costs $10/day. A travel eSIM on TelCell (TelEm) at $1.60/GB provides full 4G LTE — the same towers, none of the speed cap, and less money than either paid carrier option.
- Is T-Mobile's free international data fast enough in Sint Maarten?
- No. T-Mobile caps free international data at 256 Kbps in Sint Maarten — one-eighth the speed of basic 2G. At that rate, Google Maps takes 15+ seconds to load a single tile and will not work for navigation. Streaming video requires at least 1.5 Mbps; video calls need 2 Mbps. Basic WhatsApp text messages work, but anything else does not. T-Mobile's high-speed add-on for Sint Maarten costs $15/day. A travel eSIM on TelCell (TelEm)'s 4G LTE network delivers full local speeds at $1.60/GB — cheaper per GB than the speed upgrade.
- How is my roaming bill calculated in Sint Maarten?
- Your carrier uses one of two models. Per-day billing: AT&T charges $10 and Verizon charges $10 for each calendar day your phone connects in Sint Maarten — even if you only check a notification at midnight. Per-MB billing: without a day pass, AT&T charges $2.05 per megabyte, which adds up to $2,099 per GB. Both models penalize casual background data usage. A travel eSIM uses flat-rate billing — you pay $1.60/GB upfront, with no per-day activations and no per-MB overages. Once purchased, the cost is fixed regardless of usage patterns.
- When does my eSIM plan clock start in Sint Maarten?
- Most travel eSIMs for Sint Maarten start the validity clock when you first use data — not when you purchase or install the plan. A 7-day plan bought two weeks early begins counting from your first data session in Sint Maarten, not from purchase date. AT&T International Day Pass at $10/day works differently — it bills on each calendar day your phone touches a Sint Maarten tower, even briefly from a background app sync. The eSIM model on TelCell (TelEm) at $1.60/GB does not charge on travel days when you stay on hotel WiFi. Confirm the start-trigger with your provider before purchase. Rates checked June 2026.
- What fair-use limits apply to unlimited eSIM plans in Sint Maarten?
- Unlimited travel eSIM plans for Sint Maarten carry a fair-use threshold — typically 1-3 GB of high-speed data before speed drops to 1 Mbps or below. This is not the same as truly unlimited data. AT&T International Day Pass at $10/day provides access to your home plan's allowance with its existing soft cap — on most AT&T plans that is 50-100 GB before deprioritization. For Sint Maarten trips under 10 days, a fixed-data eSIM at $1.60/GB on TelCell (TelEm) is often cheaper than an unlimited plan with a 1 GB high-speed fair-use threshold. Read the fair-use clause before purchase. Rates checked June 2026.