Mauritius SIM & eSIM: your UK plan won’t roam free, here’s what works

The lagoon at Belle Mare, the casuarina trees leaning over white sand, the smell of grilled fish at the market… and you, standing there, trying to post one story with a sad little “E” at the top of the screen and a spinning wheel going nowhere. We’ve all lived that scene. In Mauritius the postcard is guaranteed; the connection, less so.

For British travellers Mauritius is the long-haul honeymoon, the winter-sun escape, the once-in-a-lifetime resort fortnight. Which is exactly why a phone bill shock is the last thing you want stapled to it. So we did what we always do before sending anyone off: dug through every UK network’s roaming small print and worked out what actually keeps you online for less.

Because Mauritius is a textbook case. The island is gorgeous, the local operators are generous, but your UK plan is lying in wait. We cover all of it here: why your roaming doesn’t really work, what Emtel and my.t are worth, the real price of a tourist pack, where the signal holds, and how to walk out of SSR airport already connected instead of queueing after a night flight.

Why you need a proper internet plan in Mauritius

Let’s be honest for a second: you can spend a week in Mauritius with your feet in the water and never touch your phone, and that’s half the point. But in practice data quickly earns its keep. You’ll hire a car (they drive on the left here, British-style, and GPS becomes your best friend on the back roads to Chamarel or the east coast). You’ll want to book a catamaran to Ile aux Cerfs, check the lagoon forecast before a boat trip, or find the right table in Grand Baie.

And then there’s the quintessential Mauritius reflex: calling or WhatsApping home. Plenty of UK travellers have family on the island, or simply want to reassure the people back home with a sunset photo. Add payments to the mix, when the little roadside stall only takes cash or a quick transfer, and having signal really matters.

Three options for that: roam on your UK plan, buy a local Emtel or my.t SIM on arrival, or set up a Holafly Mauritius eSIM from home before you go. We’ll cover each, from the one we’d avoid to the one we’d recommend (and yes, the first one is the trap, hold on).

Solution 1: will your UK plan actually work in Mauritius?

It’s the option that springs to mind first (because it looks easiest on paper): switch on data and go. Except in Mauritius this is exactly where it goes wrong, and it goes wrong differently depending on your network.

Mauritius sits thousands of miles away in the Indian Ocean, firmly in the Rest of World bracket on every UK network. The “roam like at home” rules you enjoy across Europe simply don’t reach this far. Here’s what each network actually charges in 2026:

UK network	Mauritius rate 2026	Data
EE	~GBP 7.50/day (Zone 3 pass)	500 MB/day cap
Three	Excluded from Go Roam	None, out-of-bundle rates
O2	No Travel Bolt On for Mauritius	Standard (punitive) rates
Vodafone	~GBP 0.11/MB (RoW)	~GBP 110 for 1 GB

The Three trap. This is the big one. Mauritius is excluded from Three’s Go Roam, so a Three customer has almost no reasonable roaming option at all, just brutal pay-as-you-go rates. If you’re on Three, an eSIM is effectively mandatory.

EE is the only one with a clean daily pass for Mauritius, at about GBP 7.50/day, but capped at 500 MB a day, which is laughable if you’re posting lagoon photos. Ten days of that is GBP 75 for roughly 5 GB. O2 has no bolt-on covering Mauritius, so you’re on standard rates (the dreaded “per MB” billing). Vodafone Rest of World data runs around GBP 0.11/MB, so 1 GB pay-as-you-go is over GBP 100. Below, the auto-updated roaming detail per network for reference.

Bottom line on UK roaming: fine for a 48-hour stopover, painful for a fortnight, and a non-starter on Three. For a real trip, the two options below are the sensible ones.

Emtel and my.t: the local operators in Mauritius

Mauritius is an easy market to read: two operators share the island, and the choice between them comes down to small practical details.

Emtel is the long-standing mobile operator and our slight favourite for travellers. Good coverage along the whole tourist coastline, a Tourist Pack built for holidaymakers, and crucially a tourist eSIM you can buy and receive by email before you even take off from the UK. Its counter is easy to find in SSR arrivals, right next to my.t.

my.t (Mauritius Telecom) is the national operator with the largest network on the island, long known as Orange Mauritius before rebranding to my.t. Excellent coverage, including inland and across the central plateau (Curepipe, Vacoas) where Emtel can dip a little. Its tourist pack costs the same, and there’s a my.t eSIM kiosk waiting near the baggage belts.

No serious third option to worry about as a tourist: it’s an Emtel-versus-my.t call. Now, the prices.

Pros and cons of SIM cards for Mauritius

How much does a SIM card in Mauritius cost in July 2026?

Good news up front: Mauritius is fairly generous on data, and the local operators have leaned into it with unlimited tourist packs at gentle prices.

The SIM itself is next to nothing, a few dozen rupees. What matters is the pack on top, and here Emtel and my.t both land at around 1,500 Mauritian rupees, roughly GBP 25, for unlimited 5G data valid 30 days, with local texts and a bit of call credit. For a two-week trip, that’s more than enough to stop counting.

The two operators sit neck and neck on price. The difference is elsewhere: Emtel offers its eSIM version to receive before departure, my.t has the automatic airport kiosk and a slight edge inland. On pure price per gigabyte, the local Mauritian SIM is unbeatable.

The only real hidden cost is the friction: showing your passport for mandatory registration, queueing at the counter after a long flight, and swapping your UK number onto a physical SIM. That’s where the eSIM claws back the advantage on shorter stays.

Here’s an up-to-date snapshot of the local SIMs and eSIMs available for Mauritius, with current plans and prices:

Buy your SIM on arrival or set it up in advance?

Three ways to get connected for Mauritius, each with its own logic. Here’s our honest comparison.

Holafly Mauritius: our honest recommendation

Straight talk. For the most common profile in Mauritius, the honeymoon couple or the holidaymakers off for one to two weeks by the lagoon, our pick is the Holafly Mauritius eSIM. Not because it’s cheapest per gigabyte (the local SIM wins that one), but because it’s cheapest in hassle.

With Holafly:

• you buy from your sofa before you leave
• you activate just before boarding, in two taps
• you land in Mauritius already connected, no counter queue after the night flight
• no passport to show, no form to fill
• your UK number stays live alongside it, perfect for reaching or being reached by family
• back home, the eSIM expires by itself, end of story

And there’s one case where the eSIM beats everything: the honeymoon. When you land wrecked after a twelve-hour flight, the last thing you want is to queue passport in hand while your other half guards the cases. You walk out connected, order your transfer, post the first lagoon photo, and you’re off. That’s the kind of detail that sets a holiday up right.

Tap just below to activate your discount and land straight on the available Holafly Mauritius plans.

Network coverage in Mauritius: where it works, where it struggles

Mauritius is a small, well-equipped island: 4G covers the essentials and 5G is rolling out across the tourist zones. But between the signal-rich coast and the mountainous interior, the experience isn’t the same.

SSR airport, the resort and the lagoon: what to know in Mauritius

Three practical points that come up every time you plan Mauritius, grouped here.

At SSR airport (Sir Seewoosagur Ramgoolam). The number-one question: where to buy a SIM on arrival. Answer: the Emtel and my.t counters sit side by side in the arrivals hall, just past baggage reclaim, plus a my.t eSIM kiosk near the belts. Convenient, but prone to queues when several wide-bodies land at once, and after a twelve-hour flight from London that’s a grim start. Passport required for registration. The stress-free play is an eSIM set up at home, so you head straight to your hotel already connected.

The resort WiFi mirage. Plenty of people fly out thinking “I’ll just use the hotel WiFi, no need for data”. In theory, yes. In practice, resort WiFi in Mauritius is often fine in the lobby and restaurant but slow or temperamental on the beach, by the pool and in the furthest villas. To post your lagoon photos live or video-call home from the sand, an eSIM or local SIM makes all the difference.

Staying in touch with family. For many British travellers, Mauritius means relatives on the island or people to reassure back home. With unlimited local or Holafly data, WhatsApp and video calls flow without counting, where classic roaming would charge you by the minute. Just mind the time difference (Mauritius is ahead of the UK) before you ring anyone at six in the morning.

Going further: our other SIM card guides by destination

If Mauritius is part of a bigger tropical trip, or you’re already planning your next sun destination, we’ve written detailed guides with the same method and the same rigour on prices and coverage.

Conclusion: what we honestly recommend

If we had to sum it up in one line: for a honeymoon or a classic two-week trip to Mauritius, get the Holafly Mauritius eSIM with code LAPLANETEDECARO, take your -5% off, activate from home and walk out of SSR already connected, with no counter and no passport to hand over.

For a longer stay or if you use a lot of data, a local Emtel or my.t SIM is unbeatable on price, with an unlimited Tourist Pack at around GBP 25. Just accept the counter queue and the registration.

And if you’re on Three, this one’s simple: Mauritius is excluded from Go Roam, so don’t rely on your plan at all, sort an eSIM before you fly.

Got a question we haven’t covered? Drop it in the comments, we’ll take the time to answer. And if you’re back from Mauritius with a connectivity tip, share it, everyone benefits.

Safe travels in Mauritius (and save a bit of battery for sunset over Le Morne, it’s worth more than any data plan).

PS: one rule we apply everywhere, and it holds for Mauritius too: turn off data roaming BEFORE you board, and switch it back on only once your eSIM or local SIM is active. Three seconds in settings, tens of pounds saved. Less glamorous than a cocktail by the lagoon, but your bank balance will thank you as much as your Instagram feed.