Every eSIM on this page roams onto Vietnam's national mobile networks. Coverage is strongest in cities and along major routes; check the provider's coverage map for remote areas.

Viettel 5G

National Vietnam mobile network — travel eSIMs roam onto it automatically.

VinaPhone 5G

National Vietnam mobile network — travel eSIMs roam onto it automatically.

MobiFone 5G

National Vietnam mobile network — travel eSIMs roam onto it automatically.

Vietnamobile 5G

National Vietnam mobile network — travel eSIMs roam onto it automatically.

Why use an eSIM in Vietnam?

↯ Online in minutes Scan a QR code and connect the moment you land — no shops, no queues, no paperwork.

£ Cheaper than roaming Travel eSIMs routinely undercut carrier roaming charges many times over.

# Keep your number Your home SIM stays active for calls and texts while the eSIM handles data.

✓ No commitment Pay once for exactly the days and data you need — nothing auto-renews.

How to set up a Vietnam eSIM in 3 steps

Install before you fly over Wi-Fi — your data allowance only starts when you arrive and connect to a local network.

1Pick & buy a plan

Choose a plan above and check out. Your eSIM QR code arrives by email within minutes.

2Scan & install

On Wi-Fi at home, open Settings → Add eSIM and scan the QR code to install the profile.

3Land in Vietnam & connect

Arrive, switch the eSIM line on for data, and you are online instantly.

How much data do you need for a Vietnam trip?

Planning data for Vietnam? For a typical week of maps, messaging, social media and the occasional video, 5–10 GB is plenty. Light users checking email and directions can get by on 1–3 GB, while remote workers, heavy streamers or anyone tethering a laptop should look at 20 GB or an unlimited plan. Because plans are cheap, it is usually worth sizing up a tier rather than risk running out mid-trip. Our guide to sizing a travel data plan breaks the numbers down by trip type.

Single-country vs regional eSIMs

If Vietnam is your only stop, a single-country plan gives the best price per GB. Visiting neighbouring countries on the same trip? A regional plan covers many countries on one eSIM — slightly pricier per GB, but you skip buying a second SIM at the border. We compare the two head-to-head in local vs regional eSIM plans.

eSIM vs roaming vs a physical SIM

In Vietnam, carrier roaming is the most expensive option and often metered by the day. A physical tourist SIM means queueing at the airport and swapping out your home number. An eSIM keeps your regular number active for calls and texts while a second data line handles the internet — installed in minutes, before you even leave home. See the full cost breakdown in eSIM vs physical SIM vs roaming.

Best Vietnam eSIM for…

Tap a pick to filter the plans above.

Popular eSIM destinations

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Before you buy a Vietnam eSIM

Quick reads that help you pick the right plan and set it up without surprises.

📊How much data do you need?Size your plan for a Vietnam trip 📲How to install an eSIMStep-by-step for iPhone & Android ✅Is your phone eSIM-ready?Check compatibility before buying ⚖️eSIM vs SIM vs roamingWhich is cheapest for your trip 💸Avoid roaming chargesThe settings and tactics that save money 📖eSIM glossaryEvery term explained in plain English

Vietnam eSIM — quick answers

What is the best eSIM for Vietnam?

The current value pick is eSIMX Vietnam · 100 GB · 20 days, shown at $4.32 ($0.04/GB).

What is the cheapest eSIM for Vietnam?

The cheapest currently available Vietnam plan is AlpineSIM Vietnam · 100 MB · 7 days · 5G at $0.26.

Are coupon discounts included in the prices?

Yes, where a provider has an unconditional coupon: its best code is already taken off its Vietnam plan prices before the click-through (one code per provider, never stacked). Some of our links add the code at checkout; for others, the provider's page shows the code to enter, so check it went in before you pay. Codes shown with a condition (a minimum spend, cashback, buying two plans) are never included in these prices. The Apply promo codes toggle above the table switches between coupon-applied and original prices.

Can I use hotspot with Vietnam eSIM plans?

Hotspot support is shown on every Vietnam plan row when the provider data includes it — filter the table by hotspot to see only tethering-friendly plans, and confirm the final policy at provider checkout.

Which mobile networks operate in Vietnam?

Major local networks include Viettel, VinaPhone, MobiFone, Vietnamobile. The exact roaming partner depends on the eSIM provider, so confirm the final network list at checkout.

Should I install my eSIM before arriving in Vietnam?

Usually yes. Download your Vietnam eSIM profile on reliable Wi-Fi before you fly, then follow the provider's activation steps on arrival — most plans only start their validity when you first connect to a Vietnam network.

How much does 1GB of eSIM data cost in Vietnam?

Right now, 1GB of travel eSIM data for Vietnam starts at $0.42. We compare 6,063 live plans from 84 providers, each re-checked weekly against the provider's own catalogue (latest sync Nov 1, 2026).

What's the lowest-priced data plan for a trip to Vietnam?

The cheapest eSIM plan for Vietnam currently starts at $0.26 (price last synced Oct 27, 2026). Smaller plans suit short stays — use the trip filter above to match your days and data needs.

Do Vietnam travel eSIMs allow tethering?

Yes — 70 of the 84 providers selling Vietnam plans allow hotspot/tethering on at least some plans (as of the Nov 1, 2026 price sync). Use the Hotspot filter above to see only those plans.

Are there unlimited data eSIMs for Vietnam?

Yes — 341 unlimited plans are currently available for Vietnam, starting at $1.48. Note that "unlimited" plans often apply fair-use speed caps; check each plan's terms.