Prices in pounds · Three prices checked 6 November 2026
Three roaming in Mexico vs a travel eSIM
In Mexico, Three uses its Go Roam Around the World Extra prices. Here is what that costs for a long weekend, a week and a fortnight, next to a data-only travel eSIM for the same trip.
Photo: Arian R on Unsplash
Three vs eSIM in Mexico: 3, 7 and 14 days
Three’s lowest published option in Mexico for each trip length, next to a Graba SIM Mexico plan with about 0.7 GB a day.
- 3 days
- 7 days
- 14 days
Three roamingGraba SIM eSIM
| Trip | Three | Graba SIM eSIM | Difference |
|---|---|---|---|
| A long weekend3 days | £17.503-day pass | £16.753GB, 15 days | The eSIM is £0.75 less |
| A week7 days | £42.007-day pass | £27.755GB, 30 days | The eSIM is £14.25 less |
| A fortnight14 days | £82.255-day pass + 3 × 3-day passes | £50.7510GB, 30 days | The eSIM is £31.50 less |
What’s included: Three: your UK calls, texts and up to 12 GB of your UK data. Graba SIM: data only, prepaid; your Three SIM stays in your phone for calls and texts. Graba SIM prices are live; Three prices checked 6 November 2026.
Sources: Three roaming (checked 6 November 2026). Prices change; check before you buy.
Graba SIM Mexico plans: data, validity and total price
Each plan is a one-off price for one eSIM. It starts when it first connects in Mexico, and hotspot use comes out of the same data.
Using your phone in Mexico
- CUN Cancún
- MEX Mexico City
- PVR Puerto Vallarta
- SJD Los Cabos
- GDL Guadalajara
- Cancún and the Hotel Zone
- Strong signal along the Hotel Zone and in town.
- Playa del Carmen and Tulum
- Good in town. Some beach clubs and cenotes are out of range.
- Mexico City
- Strong across the city, including most Metro stations.
- Chichén Itzá and the Yucatán
- Coverage thins between towns. Save offline maps before a road trip.
Networks our Mexico plans use: TelcelAT&T
- All-inclusive Wi-Fi can be slow at busy times and often stops at the hotel gate. An eSIM keeps maps, ride apps and messages working on excursions.
- Your UK SIM can join a Mexican network in the background and charge you. Turn data roaming off for it and use the eSIM for data.
Going further with Three
- The USA (trips across the border into the USA): Three charges £8 a day (Go Roam Around the World).
- Belize (day trips from Chetumal into Belize): Three charges Standard rates.
What you get for the money
Three Go Roam Around the World Extra
- £8 a day if you joined or upgraded on or after 18 December 2025; £7 a day if you joined between October 2021 and December 2025.
- Unlocks your UK calls, texts and up to 12 GB of your UK data a month.
- Three only charges on days you use your phone, but your Spend Cap has to be high enough to cover the daily charge or pass, or roaming can stop.
Graba SIM Mexico eSIM
- 5 plan sizes for Mexico, from 1GB, 7 days to 20GB, 30 days, each a one-off price.
- Runs on Telcel, AT&T in Mexico, with 5G where the network offers it.
- Data only. Your Three SIM stays on for calls and texts, so bank codes still reach you in Mexico.
Three in Mexico: questions
How much does Three roaming cost in Mexico?
£8 a day in Go Roam Around the World Extra (£7 on plans from 2021 to 2025), or £42 for a 7-day pass. Unlocks your UK calls, texts and up to 12 GB of your UK data. For a trip, that is 3 days: £17.50 (3-day pass); 7 days: £42.00 (7-day pass); 14 days: £82.25 (5-day pass + 3 × 3-day passes).
Is a travel eSIM cheaper than Three in Mexico?
It depends on the trip. Comparing Three’s lowest published option with a Graba SIM plan of about 0.7 GB a day: 3 days, the eSIM is £0.75 less; 7 days, the eSIM is £14.25 less; 14 days, the eSIM is £31.50 less. Three’s price also includes your UK calls, texts and up to 12 GB of your UK data.
Does a Mexico eSIM work in Tulum and the cenotes?
It works in Tulum town and along the main road. Cenotes, ruins and beach clubs away from town can be out of range on every network, so download tickets and maps first.
Does a Mexico eSIM work in the USA?
A Mexico-only plan covers Mexico. For a trip that crosses into the USA, add a USA plan or check the coverage list of a North America plan.