Cuba is the destination where we give travellers the least rosy advice, because pretending otherwise helps nobody. Getting online in Cuba is harder, slower and more expensive than anywhere else Canadians fly regularly. An eSIM absolutely still helps — it is the difference between having a working phone and having a camera that makes no calls — but you should land knowing what you are getting.
Why Cuba costs more than everywhere else
Every other destination on this site has several competing carriers with dozens of international roaming agreements between them. Cuba has one carrier, ETECSA, operating the mobile network under the Cubacel brand, and comparatively few roaming partners. There is no competition to push wholesale prices down and no second network to fall back on. That single fact is why a Cuba plan costs several times what the same amount of data costs in Mexico or the Dominican Republic. It is not a markup on our end — it is the wholesale reality of the only network on the island.
It is worth saying plainly because the alternative is worse. Canadian carrier roaming in Cuba, where it is offered at all, has historically been among the most expensive roaming anywhere, and plenty of Canadian plans simply do not cover Cuba. A traveller who assumes their usual roaming package extends here is the one who gets the memorable bill.
What the coverage and speed are actually like
Havana, Varadero, Santiago de Cuba, Holguín and the main resort strips have 4G, and it works. Trinidad, Cienfuegos and Viñales have coverage that ranges from decent to intermittent. Get into the countryside — the Escambray mountains, the road to Playa Girón, the far east beyond Baracoa — and you should expect to lose signal for stretches.
Speed is the part that surprises people more than coverage. Even with full bars, Cuban mobile data is slower than what you are used to at home, and it degrades noticeably in the evening when everyone is online at once. Messaging, maps and email are fine. Streaming video, large photo uploads and video calls are frustrating at best. Calibrate accordingly and you will be pleasantly surprised; expect Montreal speeds and you will be annoyed for a week.
Resort Wi-Fi in Cuba is generally paid, generally slow, and generally concentrated in the lobby. It is not a substitute for having your own data.
What to download before you fly
This matters more in Cuba than anywhere. Before you leave Canadian Wi-Fi, save offline maps of Havana, Varadero and anywhere else you plan to go — Google Maps lets you download whole regions. Download an offline translation pack for Spanish. Download your music, your podcasts, and whatever you plan to watch on the flight and by the pool. Screenshot every confirmation, booking reference and QR code you might need, because loading them live is exactly the thing Cuban data does worst.
Cuba is also largely a cash destination for visitors, and many of the payment and banking apps Canadians rely on daily behave unpredictably here. Sort out anything financial before you go rather than assuming you can handle it from a beach.
How much data you need
Less than you think, if you have prepared properly. A week of messaging, maps, occasional browsing and keeping in touch with home runs comfortably on a small plan when your maps and media are already downloaded. The travellers who burn through data in Cuba are the ones who did not prepare and end up streaming everything over cellular.
Given the price per gigabyte here, that preparation is worth real money. An hour of downloading before you leave home genuinely saves more than it does anywhere else on this site.
Who this suits
Resort travellers in Varadero, Cayo Coco, Cayo Santa María or Guardalavaca who want to stay reachable without paying resort Wi-Fi rates. Anyone touring Havana and Trinidad independently, where maps and messaging make the difference. Travellers whose family at home would like a daily message. And anyone who has heard Cuba horror stories about roaming charges and would like a known, fixed cost instead.
Staying in touch with home
WhatsApp is the backbone of communication in Cuba, for visitors and Cubans alike. Casa particular hosts, drivers, guides and tour operators will almost all prefer a WhatsApp message to a phone call, and many will confirm your arrangements that way. If you are travelling independently rather than staying at a resort, having working data is less a convenience than the mechanism by which your trip actually runs.
For family at home, set expectations before you go. A short daily message is realistic; a nightly video call is not. Telling your family in advance that you will check in by text once a day prevents the entirely avoidable worry that comes from someone in Montreal watching messages go undelivered for six hours because you were on a bus through the Escambray.
Your Canadian number stays active for regular calls and texts while the eSIM handles data, which matters more here than most places — if your bank or airline sends a verification code by SMS, it still arrives.
A note on planning around slow days
Cuban data has good hours and bad hours. Early morning is consistently the best time to do anything demanding: upload the week's photos, download an updated map, handle whatever admin needs real bandwidth. Evenings between roughly six and ten are the worst, everywhere on the island, because that is when the whole network is busy.
Build that into your week rather than fighting it. If you need to send something important, send it with your morning coffee, not after dinner. Travellers who learn this pattern in the first two days have a noticeably better week than those who keep retrying at nine in the evening and concluding the eSIM is broken.
Frequently asked questions
Why is an eSIM for Cuba so much more expensive than one for Mexico?
Because Cuba has a single mobile operator, ETECSA, with relatively few international roaming agreements. There is no competing network to drive wholesale data prices down. The higher price reflects the cost of the only network on the island, not a different margin.
Will it be fast enough for video calls?
Sometimes, in the strongest coverage areas, early in the day. Do not plan around it. Voice calls over WhatsApp are far more reliable than video, and messaging is reliable almost everywhere you will have a signal.
Is the resort Wi-Fi a cheaper option?
It is usually paid, usually slow and usually only reliable near the lobby. Most people who try to live on it end up buying more of it than they expected, and it does not follow you into Havana or on an excursion.
What should I absolutely download before I leave?
Offline maps of every area you will visit, an offline Spanish translation pack, your entertainment, and screenshots of every booking reference and QR code. Loading things live is the one thing Cuban data handles worst.