Cost Comparison
Mayotte: Roaming Charges vs eSIM Prices, Carrier by Carrier (2026)
Carrier roaming in Mayotte costs $6-$15/day across 6 carriers. A travel eSIM on Orange YT's network costs $1.58/GB. Both access the same 5G towers. The price gap is 3.2x.
Roaming costs by carrier
AT&T in Mayotte
Plan
International Day Pass
Daily rate
$10/day
7-day cost
$70
14-day cost
$140
AT&T's day pass covers data and calls to the US. Texts to local Mayotte numbers are billed separately at $0.25-$0.50 per SMS in some plan tiers. Verify before sending local contact messages abroad.
Verizon in Mayotte
Plan
TravelPass
Daily rate
$10/day
7-day cost
$70
14-day cost
$140
One week of Verizon roaming in Mayotte costs $70 ($10/day through Orange YT). An eSIM on Orange YT starts at $1.58/GB for the same connection.
T-Mobile in Mayotte
Plan
Magenta (high-speed add-on)
Daily rate
$15/day
7-day cost
$105
14-day cost
$210
T-Mobile's International Day Pass in Mayotte runs on Orange YT at $15/day. A travel eSIM delivers identical coverage from $1.58/GB.
Vodafone in Mayotte
Plan
Roaming Passport
Daily rate
£6/day
7-day cost
£42
14-day cost
£84
Vodafone's roaming pass in Mayotte triggers automatically when your phone connects to Orange YT abroad. A single background app refresh on day one starts the £6 clock.
EE in Mayotte
Plan
Roam Abroad
Daily rate
£6/day
7-day cost
£42
14-day cost
£84
Voicemail retrieval on EE in Mayotte is treated as an inbound call and can trigger the £6/day roaming pass on a day you hadn't planned to use data. Divert voicemail to a free app before departure.
Xfinity Mobile in Mayotte
Plan
International Pass
Daily rate
$10/day
7-day cost
$70
14-day cost
$140
Xfinity Mobile's International Day Pass in Mayotte runs on Orange YT at $10/day. A travel eSIM delivers identical coverage from $1.58/GB.
eSIM costs by provider
Metered plans (1GB-20GB)
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $3.99 | $3.99 |
| 3GB | $8.93 | $2.98 |
| 5GB | $11.80 | $2.36 |
| 10GB | $19.06 | $1.91 |
| 20GB | $31.52 | $1.58 |
Unlimited daily plans
| Days | Price | Per Day | Discount |
|---|---|---|---|
| 1 days | $3.35 | $3.35 | 4% |
| 3 days | $9.63 | $3.21 | 8% |
| 7 days | $22.48 | $3.21 | 8% |
| 14 days | $43.49 | $3.11 | 11% |
| 30 days | $85.85 | $2.86 | 18% |
Network access
eSIM plans in Mayotte connect to Orange YT's 5G network — the same towers that carrier roaming uses. Orange YT is the sole operator, so both roaming and eSIM deliver identical coverage.
Side-by-side comparison
7-day trip comparison
| Option | Cost | Data | Speed | Network |
|---|---|---|---|---|
| AT&T | $70 | Plan data | LTE | Orange YT |
| Verizon | $70 | Plan data | LTE | Orange YT |
| T-Mobile | $105 | Throttled | 256kbps* | Orange YT |
| Vodafone | £42 | Fair-use | LTE | Orange YT |
| EE | £42 | Fair-use | LTE | Orange YT |
| Xfinity Mobile | $70 | 200 MB/day | LTE | Orange YT |
| eSIM (20GB) | $31.52 | 20GB | 5G | Orange YT |
| eSIM (Unlimited) | $24.43 | Unlimited | 5G | Orange YT |
14-day trip comparison
| Option | Cost | Data | Speed | Network |
|---|---|---|---|---|
| AT&T | $140 | Plan data | LTE | Orange YT |
| Verizon | $140 | Plan data | LTE | Orange YT |
| T-Mobile | $210 | Throttled | 256kbps* | Orange YT |
| Vodafone | £84 | Fair-use | LTE | Orange YT |
| EE | £84 | Fair-use | LTE | Orange YT |
| Xfinity Mobile | $140 | 200 MB/day | LTE | Orange YT |
| eSIM (20GB) | $31.52 | 20GB | 5G | Orange YT |
| eSIM (Unlimited) | $48.86 | Unlimited | 5G | Orange YT |
Per-day rate breakdown
AT&T charges $10/day. A 20GB eSIM spread across 10 days costs $3.15/day — 3.2x cheaper on the same Orange YT 5G network.
Hidden charges
Auto-enrollment and day-one billing
AT&T and Verizon roaming passes activate automatically when your phone connects to Orange YT's network in Mayotte. Calendar-day billing means arriving at 11:30 PM and leaving before midnight the next day counts as two full day charges. A single background app refresh on landing triggers the first charge.
Speed throttling and data caps
T-Mobile's free international data runs at 256 Kbps — too slow for Google Maps, Instagram, or video calls. Xfinity Mobile caps high-speed data at 200 MB per day before throttling. AT&T and Verizon do not publish their throttling thresholds, but users report speed reductions on sustained high-bandwidth use.
Voicemail and background app charges
Checking voicemail abroad is treated as an inbound international call. If the day pass has not yet activated, that single voicemail retrieval triggers the full daily charge. Background app sync, push notifications, and automatic app updates all count toward data usage and can activate the daily pass without your knowledge.
Carrier rate analysis for Mayotte
AT&T International Day Pass
AT&T Prepaid customers traveling to Mayotte cannot access International Day Pass. Pay-per-use data rates of $2.05/MB apply automatically. 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: $10/day ($100 for 10 days). Travel eSIM: $31.52 for 20GB on Orange YT. Prepaid customers should buy an eSIM before departure.
Verizon TravelPass
Verizon TravelPass charges per line. A couple traveling to Mayotte: 2 lines x $10/day x 10 = $200. A family of four: $400. Each line triggers independently. A sleeping child's phone syncing a game update at midnight adds $10 to that line. eSIM alternative: $126.08 for four 20GB plans on Orange YT. Family savings: $273.92.
T-Mobile International
T-Mobile Go5G Plus includes 5 GB of high-speed international data in select destinations. Whether Mayotte qualifies depends on T-Mobile's current destination list, which changes without notice. If Mayotte is included, Go5G Plus customers get 5 GB at full speed. After 5 GB, speed drops to 256 Kbps for the remainder of the billing cycle. A 20GB eSIM at $31.52 provides a defined data bucket with no guessing about destination eligibility or mid-trip throttling.
Vodafone Roaming Passport
Vodafone applies a fair-use data cap to roaming in Mayotte. The threshold is not prominently published. Once exceeded, speeds drop while the GBP6/day charge continues. A traveler who streams video or joins video calls may hit the cap within 2-3 days. A 20GB eSIM at $31.52 states its data ceiling upfront. Speed remains at full 5G until the plan is consumed. No hidden threshold, no surprise throttle mid-trip.
EE Roam Abroad
EE Roam Abroad for Mayotte: GBP6/day. 7 days: GBP42. 10 days: GBP60. EU destinations are included on most EE plans post-2021 contract renewals. Mayotte carries the rest-of-world zone rate. A 20GB eSIM on Orange YT: $31.52 (USD). The eSIM removes currency conversion uncertainty entirely.
Xfinity Mobile International Pass
Xfinity Mobile International Pass for Mayotte: $10/day with a 200 MB daily high-speed cap. After 200 MB, data throttles to 2G-equivalent speeds for the rest of the calendar day. 200 MB covers roughly 4 hours of Google Maps navigation or 15 minutes of video calling. Most travelers exceed 200 MB before lunch. Over 10 days: $100 total, with throttled speeds most of each day. A 20GB eSIM at $31.52 provides the full data allocation at 5G with no daily cap.
Three UK Go Roam
Three UK divides international destinations into two tiers. Go Roam destinations (71 countries): £2/day. Rest-of-world destinations: £5/day. Mayotte is outside Go Roam: £5/day (approximately $6.35 USD). 10-day cost: £50 ($63.5). A 20GB eSIM on Orange YT: $31.52 (USD).
MVNO roaming comparison
Boost Mobile's international options for Mayotte are limited to add-on packs that provide small data allotments (typically 100-500 MB) at $5-$10 per pack. A 500 MB Boost pack runs out in under 2 hours of normal smartphone use. A 20GB eSIM at $31.52 on Orange YT provides 40x more data than a Boost international pack. Boost customers should install a travel eSIM before departure.
Rate summary
AT&T (International Day Pass): AT&T International Day Pass costs 217% more than an eSIM for Mayotte.
Verizon (TravelPass): Verizon TravelPass costs 217% more than an eSIM for Mayotte.
T-Mobile (Magenta (high-speed add-on)): T-Mobile's paid high-speed tier costs more than AT&T and more than an eSIM.
Bill shock scenarios
Scenario: a family of four on Verizon lands in Mayotte. All four phones auto-connect to Orange YT. TravelPass triggers on all four lines: $40 for day one. One child's phone downloads a game update overnight (100 MB): triggers a new $10 charge at midnight for that line. After 10 days: $400 + phantom midnight charges. Four 20GB eSIMs: $126.08 total with no per-day billing.
How to switch to an eSIM
Setting up dual-SIM for Mayotte (works with any US carrier): Your phone runs two SIMs simultaneously: the home carrier SIM and the travel eSIM. Home SIM role: calls and texts only. Data roaming OFF. WiFi Calling ON. eSIM role: all mobile data on Orange YT's 5G network at $31.52 for 20GB. How they work together: incoming calls arrive on your US number via WiFi Calling routed over the eSIM's data connection. iMessage and WhatsApp stay tied to your home number. Maps, browsers, and apps use the eSIM's data. AT&T/Verizon/T-Mobile cannot bill roaming charges when data roaming is disabled on their SIM.
Is eSIM cheaper than roaming in Mayotte?
An eSIM in Mayotte costs $31.52 for 20GB over 10 days. AT&T roaming costs $100 for the same trip on the same Orange YT towers. Verizon TravelPass matches AT&T at $10/day. The eSIM is 68% cheaper than both carriers. Rates verified May 2026.
Should I use eSIM or roaming in Mayotte?
If you stream, navigate, or video-call in Mayotte, use an eSIM. AT&T's $10/day roaming counts against your home data. An eSIM provides dedicated 20GB on Orange YT's 5G network for $31.52. You save $68.48 over 10 days with no throttle surprises. Verified May 2026.
Does T-Mobile work in Mayotte?
Yes, T-Mobile connects to Orange YT in Mayotte, but free international data runs at 256 Kbps. That is 2G-equivalent speed. Upgrading to high-speed costs $15/day. A travel eSIM at $31.52 for 20GB provides full 5G speed on the same Orange YT towers. Verified May 2026.
What is the best way to get data in Mayotte?
Buy a travel eSIM before your Mayotte trip. It costs $31.52 for 20GB and activates on Orange YT's 5G network when you land. No airport lines, no passport registration, no daily billing. Carrier roaming costs $100 for the same 10 days. Verified May 2026.
Our verdict for Mayotte
When carrier roaming makes sense
Carrier roaming makes sense for 1-day layovers where the $10 charge is less than the effort of installing an eSIM. Travelers who need voice calling to local Mayotte numbers may also prefer their carrier plan, since eSIM data plans do not include voice service.
When an eSIM wins
For any trip longer than 2 days, an eSIM saves money over carrier roaming in Mayotte. Families and groups save even more because carrier charges multiply per person. Countries with airport SIM queues make eSIM especially valuable — install before departure, activate on landing.
Bottom line for Mayotte
For a 10-day trip to Mayotte, an eSIM saves $68.48 vs AT&T and delivers the same 5G connection on Orange YT's network.
Mayotte connectivity details
Local network infrastructure
Mayotte has 1 mobile network. Primary carriers: Orange YT, SFR. Both carrier roaming and eSIM connect to these same networks.
Good to know
In Mayotte, dial 15/17/18/112 for emergency services. Calling 112 may not connect on all networks. This number works on any active SIM or eSIM, including plans with exhausted data balances.
Good to know
Orange is the only mobile network in Mayotte. Your carrier roaming plan and a travel eSIM both connect to the same towers. The signal quality is identical; only the cost differs.
Frequently asked questions
- Is roaming or eSIM better for Mayotte?
- For trips longer than 2 days, an eSIM is cheaper than carrier roaming in Mayotte. AT&T charges $10/day while an eSIM costs $31.52 total for a 10-day trip. Both use Orange YT's 5G network — the only difference is the price.
- What hidden charges does AT&T have for Mayotte roaming?
- AT&T's International Day Pass auto-activates when your phone connects to Orange YT's network in Mayotte. Calendar-day billing means arriving at 11 PM costs a full $10. Background app sync, voicemail retrieval, and notifications can trigger the daily charge on days you intended to stay offline.
- Do eSIMs use the same network as carrier roaming in Mayotte?
- Both eSIM and carrier roaming connect to Orange YT's 5G towers in Mayotte. The network, coverage area, and download speeds are identical. The difference is pricing: carriers charge $10-$15/day while eSIMs charge a flat rate for the entire trip.
- Is T-Mobile roaming really free in Mayotte?
- T-Mobile Magenta includes free data in Mayotte, but speed is throttled to 256 Kbps. That is too slow for maps, video calls, or photo uploads. The high-speed add-on costs $15/day — more expensive than most eSIM plans.
- Can I use eSIM and keep my carrier number in Mayotte?
- Dual-SIM phones (most models since 2019) run both your carrier SIM and the travel eSIM simultaneously. Your home number stays active for calls and texts over WiFi. The eSIM handles all data on Orange YT's 5G network in Mayotte.
- What speed does carrier roaming get in Mayotte?
- Carrier roaming in Mayotte connects to Orange YT's 5G network — the same towers and speeds that an eSIM uses. AT&T and Verizon offer LTE speeds through their day pass. T-Mobile's free tier is capped at 256 Kbps unless you pay for the high-speed add-on.
- Does Verizon auto-charge for roaming in Mayotte?
- Verizon TravelPass activates automatically when your phone connects abroad in Mayotte. A single background data transfer triggers the $10/day charge. The only way to avoid it is to disable data roaming in your phone settings before landing.
- How much does carrier roaming cost in Mayotte?
- Verizon TravelPass and AT&T International Day Pass both bill $10/day in Mayotte. T-Mobile offers free international data, but caps speed at 256 Kbps — unusable for navigation or video. Pay-per-use rates without a plan can exceed $2,000/GB on AT&T. An eSIM on Orange YT starts at $3.99 for 1GB, delivering full 5G speeds on the same local towers your carrier roams through.
- Is T-Mobile's free international data fast enough in Mayotte?
- No. T-Mobile's free tier: 256 Kbps. Google Maps minimum: 500 Kbps. Video calls: 2,000 Kbps. Streaming: 1,500 Kbps. The free tier covers text-only WhatsApp and nothing else in Mayotte. T-Mobile's paid upgrade runs $15/day on Orange YT's towers. A travel eSIM on the same Orange YT towers costs $1.58/GB at full 5G speed — no daily charge, no speed cap.
- How is my roaming bill calculated in Mayotte?
- Three billing models for Mayotte data. Model 1: per-day pass (AT&T $10/day, Verizon $10/day) — charges on any day your phone touches the network, even from background apps. Model 2: per-MB (AT&T $2.05/MB without a pass, $2,099/GB). Model 3: flat-rate eSIM at 1GB for $3.99 — one payment, fixed cost, no daily or per-MB charges. Model 3 is the only one where a background app sync costs nothing extra.
- Can I stream Netflix and YouTube on a travel eSIM in Mayotte?
- Yes. Orange YT's 5G network in Mayotte supports streaming without buffering under normal conditions. Data consumption: Netflix SD uses 700 MB/hour, HD uses 3 GB/hour, 4K uses 7 GB/hour. YouTube at 720p uses 900 MB/hour. AT&T International Day Pass at $10/day covers streaming but bills daily regardless of usage. A travel eSIM at $1.58/GB charges per GB consumed — 2 hours of Netflix HD costs roughly $9.48. Download content over hotel WiFi before heading out to cut cellular data use by 90% for entertainment. Rates checked June 2026.
- Does my phone automatically connect to roaming in Mayotte?
- Yes, if data roaming is enabled. Your phone latches onto Orange YT or another Mayotte carrier the moment the plane lands and your carrier bills at roaming rates — $10/day with a plan, or $2.05/MB without one. Disable data roaming on your home SIM before boarding. A pre-installed travel eSIM can be set to activate on arrival without triggering home carrier charges.