How Carrier Roaming Fees Stack Up Against eSIM Prices in Reunion

AT&T charges $10/day on International Day Pass for Reunion. Verizon charges $10/day on TravelPass. T-Mobile includes Reunion for free at 256 Kbps — barely fast enough for text messages, not usable for maps or apps. Without any plan, AT&T's pay-per-use rate is $2.05/MB, meaning a single Google Maps session costs over $10. A travel eSIM on Orange RE starts at $3.67 for 1GB — the same 5G network at a fraction of the daily roaming cost.

No. 256 Kbps sounds like it covers light use, but even a single email with an attachment or a 30-second map route takes over a minute to load at that speed. T-Mobile's free tier in Reunion is functional only for plain text messages. The paid upgrade runs $15/day — identical to AT&T's roaming fee. A travel eSIM on Orange RE at $1.83/GB costs less per GB than any day-pass option and has no speed restriction.

A traveler lands in Reunion, checks one notification, and AT&T bills $10 for the entire calendar day. That is how per-day billing works — any cellular connection, even a background sync at midnight, triggers the full daily charge. Without a day pass, AT&T charges $2.05/MB. A 15-second Instagram scroll could cost $30. An eSIM at 1GB for $3.67 is a fixed cost: no per-day triggers, no per-MB metering, no bill surprises.

Yes. A travel eSIM connects to Orange RE in Reunion at $1.83/GB. Your phone runs both SIMs at once — the eSIM handles all data traffic while your home SIM stays active for calls and texts. No roaming plan is required, and your home carrier cannot charge roaming if data roaming is disabled on that SIM. The eSIM activates the moment you land in Reunion and begins using 5G speeds immediately.

For calls and SMS, yes — WiFi Calling routes your home number through any internet connection for free. But it does not cover data. In Reunion, WiFi outside hotels and airports is patchy. An eSIM at $1.83/GB on Orange RE gives you continuous 5G data for maps, transit apps, and messaging when WiFi is unavailable. WiFi Calling and an eSIM work together as a complete solution.

AT&T covers Reunion at $10/day. Verizon covers most African countries at $10/day. T-Mobile includes Reunion at 256 Kbps (free but unusable for data-heavy apps). A travel eSIM on Orange RE provides full 5G speeds at $1.83/GB — the same carrier infrastructure as roaming, at a fraction of the cost.

Reunion has 1 carrier providing 5G coverage. Urban and tourist areas have solid coverage; rural regions may have gaps. A travel eSIM connects to Orange RE — the exact same network carrier roaming uses — at $1.83/GB. Coverage quality is identical to what AT&T or Verizon routes through.

AT&T International Day Pass for 10 days: $100. Verizon TravelPass: $100. T-Mobile high-speed: $150. A travel eSIM on Orange RE at $1.83/GB for 10 days at 1.5 GB/day average costs roughly $27.45. The eSIM saves over 80% versus any carrier's paid roaming option. Rates checked June 2026.

Both carrier roaming and travel eSIMs connect through Orange RE's towers in Reunion. Coverage outside major cities depends on how widely Orange RE has deployed — the same gaps that affect an eSIM also affect AT&T and Verizon roaming. Urban centers and tourist corridors have consistent signal; rural and off-road areas may have limited or no service. There is no coverage advantage to choosing carrier roaming over an eSIM; both are subject to the same Orange RE network footprint.

AT&T: $70/week (International Day Pass at $10/day). Verizon: $70/week (TravelPass). T-Mobile: free at 256 Kbps or $105/week for usable speed. The cheapest eSIM for Reunion starts at $1.83/GB on Orange RE's 5G network — better per-GB value than all three carriers.