How to avoid roaming charges in Mauritius
Verizon TravelPass runs $10/day in Mauritius — identical to AT&T's International Day Pass. T-Mobile includes international data but throttles to 256 Kbps, slow enough that Maps tiles fail to load. All three carriers connect through my.t's towers. None operate their own infrastructure here. The $10/day fee pays for the billing agreement, not the signal quality.
Bypass all three carriers by installing a Mauritius eSIM before departure. Disable data roaming on your home SIM in Settings. A 20GB plan on my.t costs $101.25 for 7 days at full speed. After landing, activate the eSIM as your data line. Same my.t towers, same coverage map, no daily fee.
What AT&T and Verizon charge in Mauritius
Two phones on AT&T International Day Pass in Mauritius: $20/day, $140 over 7 days. Four phones: $40/day, $280 for the week. A family trip on Verizon TravelPass costs the same — $10 per device per day on my.t. Four eSIMs on my.t at $101.25 each: $405 total for 20GB per device. That is $-125 in savings for the family. Each eSIM connects independently to my.t — no shared pool, no per-device daily trigger.
Per-task roaming charges in Mauritius
| Activity | Data Used | Roaming Cost | eSIM Cost |
|---|---|---|---|
| Send WhatsApp photo | 3 MB | $6.15 | $0.01 |
| 10 min Google Maps | 5 MB | $10.25 | $0.02 |
| 10 min Instagram scrolling | 50 MB | $102.50 | $0.25 |
| Send email with photo | 3 MB | $6.15 | $0.01 |
| 30 min Spotify | 45 MB | $92.25 | $0.22 |
| Check Google Translate (10 queries) | 2 MB | $4.10 | $0.01 |
Roaming costs by trip length for Mauritius
Four phones on AT&T in Mauritius: $40/day. Over 7 days: $280. Each device bills $10/day independently on my.t — a child's game, a partner's map search, a grandparent's text all trigger separate daily charges. Four eSIMs on my.t cost $405 total for 20GB each. Family savings: $0. Per device, per day: AT&T = $10. eSIM = $14.46. The math scales as badly for families as it does for individuals.
Roaming rate comparison for Mauritius
AT&T International Day Pass charges $10/day in Mauritius. Verizon TravelPass charges $10/day. Both connect through my.t and offer the same coverage map. T-Mobile includes international data on most plans, but throttles speeds to 256 Kbps — slow enough that Google Maps tiles fail to load and ride-hailing apps time out. All three carriers use my.t's towers in Mauritius. None of them operate their own infrastructure here. The $10/day fee pays for the billing agreement between your home carrier and my.t, not for better signal or faster speeds. my.t delivers 25 Mbps to local subscribers and eSIM users alike. A Mauritius eSIM on my.t costs $101.25 for 20GB — the same network, the same towers, at $5.06/GB instead of $10/day.
Why roaming charges happen automatically in Mauritius
Dual-SIM phones in Mauritius carry a specific risk: both SIM lines can receive data connections simultaneously. If your home SIM has data roaming enabled and your eSIM is also active, your phone may route some traffic through the home SIM's roaming connection and some through the eSIM. AT&T charges $10/day for any data through the home SIM, even a single background sync. Set your eSIM as the primary data line in Settings and disable data roaming on your home SIM before leaving your hotel. Verify in Settings that "Cellular Data" shows your eSIM line, not your home carrier. An eSIM on my.t at $101.25 for 20GB handles all data cleanly when configured as the sole data source.
Background data leaks in Mauritius
Location Services on your phone ping my.t's towers every few minutes in Mauritius. Find My, Maps, Weather, and ride-hailing apps all request location data in the background. Each ping transfers 0.5-2 MB. Over a full day, location pings accumulate 10-30 MB of silent cellular data. At $2.05/MB, that is $20-60 per day in charges you never authorized. Disable location services for non-essential apps before landing: Settings > Privacy > Location Services > review each app. Keep Maps and emergency services active, disable everything else. An eSIM on my.t at $8.10 for 1GB routes these pings through flat-rate data instead of AT&T's per-MB billing.
Airport connectivity options for Mauritius
Some airport SIM counters in Mauritius only accept local currency. You land with MUR still to collect from an ATM. The SIM counter wants cash. The ATM has a queue. AT&T charges $10 while you sort out the currency problem. An eSIM processes in your home currency before departure — no foreign currency needed, no ATM stop, no waiting for cash. Plans on my.t start at $8.10 for 1GB, charged to your regular card on home soil. Land with connectivity already active and your wallet untouched.
How to set up your eSIM for Mauritius
Disable data roaming on your home SIM
Go to Settings › Cellular › Cellular Data Options and turn Data Roaming OFF. This is the most critical step. Skipping it means Mauritius roaming charges can still hit your home carrier bill.
Buy a travel eSIM
Get a plan from Airalo at $5.06/GB. Do this at home on WiFi before you fly — QR code delivery takes under 60 seconds.
Install the eSIM profile
Open phone Settings › Cellular › Add eSIM. Scan the QR code or tap the install link in your confirmation email.
Set eSIM as default data on arrival
After landing in Mauritius, go to Settings › Cellular and set your travel eSIM as the primary data line. It connects to CHILI within minutes.
Keep home SIM for calls via WiFi Calling
Your home number stays reachable for free over WiFi. You pay eSIM rates for data — 85–95% less than roaming.
Need help with device compatibility? Check eSIM compatible phones or our how eSIMs work guide before purchasing.
iPhone and Android roaming settings for Mauritius
Dual-SIM phones traveling to Mauritius require explicit data line assignment to avoid accidental roaming charges. After installing your Mauritius eSIM, go to your phone's SIM settings and confirm that: (1) Mobile data is set to your eSIM line, not your home SIM. (2) Your home SIM has data roaming disabled as a backup protection. (3) Auto-switch or adaptive data routing is turned off. These three settings together prevent AT&T from charging through my.t if your phone briefly loses the eSIM connection. Your home SIM stays enabled for calls and texts over WiFi. The eSIM handles all cellular data on my.t at $8.10 for 1GB. 5G is available on my.t — your device connects automatically if your plan includes 5G access.
