Best travel eSIM Vietnam: Cellulo plans that beat $18/day roaming
Updated April 13, 2026 · Cellulo Team
Land in Vietnam without a plan and your Canadian carrier starts billing $18/day. Stay a week and that becomes $126 for one person, or $252 for two, before you've even sorted out maps, rides, or hotel check-in.
The best travel eSIM Vietnam option is usually the one that matches your trip length without forcing you onto roaming. Cellulo's Vietnam eSIMs start at $6 CAD, activate automatically on arrival in Vietnam, and let you get online as soon as you land instead of hunting for airport Wi-Fi or a SIM kiosk after a long flight.
These are data-only eSIMs, so they do not include calls or SMS. For most travellers, that is fine. WhatsApp, FaceTime, Google Meet, Slack, Gmail, Grab, Google Maps, translation apps, and airline or hotel emails all run on data.
Why a Vietnam eSIM makes more sense than roaming
Vietnam is the kind of trip where mobile data stops being optional fast. If you're landing in Ho Chi Minh City or Hanoi and heading straight into traffic, you want Google Maps working the moment the plane touches down. If your hotel is messaging check-in instructions, or you need Grab to leave the airport, no connection means delays right away.
Carrier roaming is easy to ignore until the bill lands. At $18/day, a 10-day trip costs $180. A 15-day trip costs $270. Compare that with Cellulo's options:
- 7 days of 1GB for $6 CAD
- 15 days of 2GB for $10 CAD
- 30 days of 5GB for $16 CAD
- 10 days of unlimited data for $49 CAD
Even the 15-day unlimited plan at $69 undercuts carrier roaming by $201 on the same trip. If you're travelling as a couple, the savings get bigger fast.
A Vietnam eSIM also solves the arrival problem. You install it at home on Wi-Fi before you leave, then it activates automatically when you arrive in Vietnam. That means no lineups, no paper SIM packaging, and no guessing which airport kiosk is legitimate.
Best travel eSIM Vietnam plans compared
| Data | Duration | Price (CAD) | Get Plan | Best For |
|---|---|---|---|---|
| Unlimited data | 3 days | $18 | Get Plan | Weekend city break |
| Unlimited data | 5 days | $29 | Get Plan | Short getaway |
| 1 GB | 7 days | $6 | Get Plan | Light traveller |
| Unlimited data | 7 days | $41 | Get Plan | ⭐ Most Popular — Week-long trip |
| Unlimited data | 10 days | $49 | Get Plan | Business traveller |
| 2 GB | 15 days | $10 | Get Plan | Budget two-week trip |
| Unlimited data | 15 days | $69 | Get Plan | Heavy user |
| 3 GB | 30 days | $12 | Get Plan | Long stay, light use |
| 5 GB | 30 days | $16 | Get Plan | Backpacker month |
| 10 GB | 30 days | $28 | Get Plan | Remote work basics |
| 20 GB | 30 days | $43 | Get Plan | Content creator |
| Unlimited data | 30 days | $110 | Get Plan | Digital nomad |
The 7-day unlimited plan is the strongest middle ground for most travellers. It covers a typical Vietnam trip without worrying about data caps, and at $41 CAD it is still far below the $126 a Canadian carrier would charge for seven days of roaming.
How much data do you actually need in Vietnam?
If you're mostly using maps, messaging, email, and occasional browsing, the smaller plans can be enough. The 1GB 7-day plan at $6 or the 2GB 15-day plan at $10 work for disciplined users who spend part of the day on hotel or cafe Wi-Fi.
If you plan to use Grab often, stream music, upload photos, take video calls, or work remotely, the unlimited plans are safer. Vietnam trips often involve moving between cities, day tours, and long transit days where you cannot count on reliable Wi-Fi. Hotel Wi-Fi can be slow or insecure, especially if you're logging into banking, work tools, or anything sensitive.
Travellers posting stories and reels in real time should look at the 15-day or 30-day higher-cap plans, or go straight to unlimited. Business travellers who need Slack, email, cloud docs, and video calls without babysitting a data meter will usually be happiest with the 10-day unlimited option.
Vietnam eSIM setup before you fly
Install your eSIM before leaving Canada while you're on Wi-Fi. Installation needs an internet connection, and doing it at home is easier than trying to troubleshoot in an airport.
Before landing in Vietnam, turn your Canadian line off completely in your phone's cellular settings. Do not just disable data roaming. If the Canadian line stays active, it can still trigger roaming charges.
Use the Vietnam eSIM for mobile data during your trip. If you need a one-time password or 2FA code sent to your Canadian number, turn your Canadian line on briefly, receive the code, then turn it off again.
Do not use Airplane Mode as a workaround. Airplane Mode disables the eSIM too. The right move is turning off the Canadian line specifically while leaving the Vietnam eSIM active.
Coverage and trade-offs to know before you buy
A Vietnam eSIM connects to local networks in Vietnam, which is what makes it practical for navigation, rideshare, translation, and day-to-day travel. In major cities and tourist areas, that is usually what most travellers need. If you're heading into more remote rural areas or island destinations, coverage can be less consistent than in the main urban centres.
The other trade-off is simple: these are data-only plans. No local phone number, no traditional calls, no SMS included. For most Canadian travellers, that is not a dealbreaker. Data handles nearly everything now, but it is still worth knowing before you buy.
If you want to avoid roaming charges in Vietnam and get connected as soon as you land, start with Cellulo's Vietnam eSIM plans at /travel/vietnam.