Vietnam eSIM & SIM Card (2026): Best Plans, Prices & How to Set It Up

eSIM or a local SIM? Which network, what it really costs, and how to be online the second you land — a no-nonsense 2026 guide.

Last updated: July 2026

Vietnam eSIM & SIM — the short version

Easiest	Buy an eSIM before you fly (Airalo, Holafly, Klook, Trip.com). Scan a QR, land, done — no queue, no passport.
Cheapest	A local Viettel SIM from a city store: ~150,000 VND (US$6) for 5 GB/day for a month. Airport counters cost 2–3×.
Best network	Viettel — widest coverage, best in the countryside, mountains and islands. Vinaphone and Mobifone are fine in cities.
5G?	Yes — live in every province since 2024–25 and included free on tourist plans. Vietnam ranks top-3 worldwide for 5G speed.
Don’t	Buy pre-activated SIMs from street sellers (they get switched off), and keep your home number active for bank OTP.

What’s in this guide
1. eSIM or SIM card? The quick answer
2. Best network in Vietnam: Viettel, Vinaphone or Mobifone?
3. Is there 5G in Vietnam? Coverage & speed in 2026
4. Best Vietnam eSIM: Airalo, Holafly, Klook, Trip.com & co. compared
5. Local SIM at the airport: real 2026 packages & where to buy
6. eSIM vs local SIM: the real price picture
7. How much mobile data do you actually need?
8. Does your phone support eSIM?
9. How to set up an eSIM (iPhone & Android)
10. Buying a physical SIM & the passport law
11. Keep your home number: dual-SIM & bank OTP
12. Coverage where you’re headed: cities, coast & mountains
13. Stay connected for less — and avoid the common traps
14. Before you fly: your 2-minute connectivity checklist

A traveler using a smartphone map on a street in Vietnam, connected with an eSIM or local SIM — With an eSIM or a local SIM you’re online for Grab, maps and translation the moment you land.

1. eSIM or SIM card? The quick answer

Get an eSIM if you want zero hassle; get a local physical SIM if you want the lowest price. Both give you fast, cheap data in Vietnam — the only real question is convenience versus a few dollars saved.

An eSIM is a digital SIM you buy online before you fly. You scan a QR code, and you’re connected the instant the plane lands — no airport queue, no passport, no fiddling with a tiny card. A local physical SIM is a plastic card you buy at an airport counter or phone shop; it’s the cheapest way to get a mountain of data, but you spend ten minutes at a counter and swap out your home SIM.

A smartphone with its SIM card tray ejected and an on-screen 'Insert SIM card' setup guide — A physical SIM is unbeatable value; an eSIM saves you the airport queue. Most travelers only need one of them. (Photo: Tony Webster, CC BY 2.0, via Wikimedia Commons.)

Here’s who should pick what:

You are…	Best choice	Why
On a short trip (3–10 days), hate hassle	eSIM	Online before you land; nothing to swap
Budget or long-stay traveler	Local Viettel SIM	Most data per dollar, easy top-ups
Heading to Sapa, Ha Giang, remote islands	Viettel (SIM or eSIM)	Only Viettel reliably reaches the far corners
Heavy user / working online / streaming	Holafly / big-data eSIM or local SIM	Truly generous data, no mid-trip top-ups
Phone has no eSIM or is carrier-locked	Local physical SIM	Works in any unlocked phone

💡 Short version: eSIM = fastest and easiest; local Viettel SIM = cheapest. You almost never need both.

📲 Get online the second you land — Vietnam eSIMBuy before you fly, scan a QR, and skip the airport queue. Keeps your home number for OTP.See Vietnam eSIM plans on Airalo See Vietnam eSIM on Klook Compare eSIMs on Trip.com
Affiliate link — we may earn a commission at no extra cost to you.

2. Best network in Vietnam: Viettel, Vinaphone or Mobifone?

For travelers, Viettel is the safe default. Vietnam has three big carriers, and while all three are good in the cities, their coverage diverges the moment you leave town.

Carrier	Coverage	5G	Best for
Viettel	Widest by far — cities, coast, mountains, islands	Launched first (Oct 2024)	Everyone, especially rural & island trips
Vinaphone (VNPT)	Excellent in cities, weaker rural	Often the fastest peak speeds	City-focused trips; good tourist SIM
Mobifone	Solid in cities, weakest outside them	Live since Mar 2025	City breaks; big in-app data bundles

Viettel is the country’s largest network (just over half of all subscribers) and was built out nationwide during its state-owned history, which is exactly why it wins in places other networks don’t reach. Smaller budget operators — Vietnamobile, iTel, Wintel, Local — are cheaper but patchy outside big cities, so skip them if you plan to travel around.

💡 If a shop or eSIM app lets you choose the network and you’ll go anywhere beyond the cities, choose Viettel. In a city-only trip, all three are genuinely fine.

3. Is there 5G in Vietnam? Coverage & speed in 2026

Yes — 5G is live nationwide and it’s fast. Viettel switched on Vietnam’s first commercial 5G in October 2024, Vinaphone followed in December 2024, and Mobifone in March 2025. By 2026 the networks reach every province and roughly 90% of the population with tens of thousands of 5G sites.

A telecom tower providing 4G and 5G mobile coverage — 5G is live in every Vietnamese province and comes free with tourist data plans. (Photo: Tony Webster, CC BY 2.0, via Wikimedia Commons.)

And it’s not just wide — it’s genuinely quick. In 2025 speed tests (Ookla), Vinaphone ranked #2 in the world for 5G speed and Viettel #3 for overall mobile speed, with peaks around 1 Gbps in the cities. For maps, video calls, uploads and streaming you’ll rarely want for speed.

5G is free on tourist plans — there’s no surcharge; you just need a 5G phone and a plan with data left.
Reliable 5G today: Hanoi, Ho Chi Minh City, Da Nang, Hai Phong, Hue, Nha Trang, plus airports, tourist sites and industrial zones.
4G is everywhere else and plenty fast for everything a traveler does.

⚠️ Vietnam switched off its old 2G network in October 2024 (3G follows around 2028). A very old 2G-only handset won’t connect — bring a 4G/5G phone.

4. Best Vietnam eSIM: Airalo, Holafly, Klook, Trip.com & co. compared

Travel eSIMs are the easiest way online. They differ mainly in price, how much high-speed data you get, and which network they ride. Here are the popular choices for Vietnam in 2026 (prices are representative and move with promos):

Provider	Example plan	Price (USD)	Network	Best for
Airalo	5 GB / 30d · 10 GB / 30d	~$11 · ~$18	Viettel/Vinaphone (5G)	Reliable all-rounder, best coverage
Ubigi	10 GB · 50 GB / 30d	~$13 · ~$37	Vinaphone (5G)	Best value on big data, 5G
Holafly	Unlimited / 7d · 30d	~$27 · ~$74	Vinaphone	Heavy users who never want to top up
Nomad	10 GB / 30d	~$17	Mobifone/Vinaphone	Fixed-data alternative to Airalo
Klook eSIM	Multi-day data	~$5–15	Viettel (5G)	Klook users; frequent promos
Trip.com eSIM	1–30 day, many SKUs	from ~$2–3	All three (5G)	Cheap short-trip plans

⚠️ “Unlimited” almost never means uncapped. Most brands give a high-speed daily cap (often 3 GB), then slow you right down. Airalo throttles to about 1 Mbps (still usable); some budget brands drop to a near-useless trickle after the cap. Holafly is the one that’s genuinely uncapped day-to-day (its hotspot is limited, though).

For most travelers, an Airalo or Klook eSIM is the sweet spot of coverage and price; if you’ll stream a lot, Holafly’s unlimited or a big Ubigi plan is worth it. Want the deep brand-by-brand breakdown? See our honest eSIM comparison for Vietnam.

5. Local SIM at the airport: real 2026 packages & where to buy

Prefer a physical card? You’ll get the most data for your money — just know the prices before you walk up, because airport counters mark them up.

A mobile carrier SIM counter in an airport arrivals hall — Official carrier counters sit in the arrivals hall — bring your passport, and ignore anyone selling SIMs elsewhere. (Photo: ToanLaiab, CC BY-SA 4.0, via Wikimedia Commons.)

Viettel (the network to get) sells data packages like these — the counter loads one onto a fresh SIM (there’s a small SIM fee on top):

Package	Data	Validity	Price
5G80T	5 GB/day	15 days	≈ 80,000 VND (US$3)
5G150T	5 GB/day	30 days	≈ 150,000 VND (US$6)
5G180H (with calls)	5 GB/day + minutes	30 days	≈ 180,000 VND (US$7)

Vinaphone’s airport “Tourist SIM” (199,000 VND / ~US$8) bundles a local number and international minutes but only 1 GB/day for 15 days. Mobifone’s “Hi Vietnam” app packs advertise huge data (50–250 GB) and a free first 24 hours.

⚠️ Airport counters charge 2–3× the city price for the same data, and unofficial resale booths charge even more (450,000 VND+). The official Viettel / Vinaphone / Mobifone desks are in the arrivals hall — buy there, or buy a cheaper package at a Viettel store in town the next day. Bring your passport; registration is required by law.

Where the counters are: Noi Bai (Hanoi) T2 arrivals after customs; Tan Son Nhat (HCMC) T2 (desks before and after immigration); Da Nang ground floor after customs; Cam Ranh (Nha Trang) near international arrivals. Landing in Da Nang, Ho Chi Minh City or Hanoi? Our city guides cover the airport walk-through too.

6. eSIM vs local SIM: the real price picture

Put side by side, the trade-off is small — a few dollars for a lot of convenience:

	eSIM (Airalo/Klook)	Local Viettel SIM
Typical cost	~$11 for 5 GB/30d, ~$18 for 10 GB	~$6 for 5 GB/day/30d (city price)
Data amount	Fixed bucket (or capped “unlimited”)	Huge — 5 GB per day
Setup	QR scan at home, on before you land	10 min at a counter, passport, SIM swap
Passport needed?	No	Yes (by law)
Keeps your number?	Yes (home SIM stays in)	Only if your phone is dual-SIM

In plain terms: the local SIM wins on raw value (far more data for slightly less), while the eSIM wins on convenience (connected on landing, number kept, nothing to swap). Neither is “wrong” — pick the one that matches how you travel.

7. How much mobile data do you actually need?

Most travelers massively overbuy. Here’s what everyday use really costs:

Activity	Rough data use
Google Maps navigation	~3–5 MB per hour
Grab ride / food order	a few MB each
Messaging (text)	~1–5 MB a day
Social scrolling	~100–150 MB per hour
Video / Reels / streaming	~1–3 GB per hour (the big one)

Bui Vien Walking Street, a neon-lit night street full of people in Ho Chi Minh City, Vietnam — Out on Vietnam’s streets, live data keeps Grab, Google Maps and translation one tap away. (Photo: Christophe95, CC BY-SA 4.0, via Wikimedia Commons.)

Put together, a light user burns ~0.5 GB a day and a whole week trip often lands around 3.5–7 GB total. That’s why a “5 GB/day” plan is overkill for most people — but a bargain if you stream. Watch video and do backups on your hotel’s free Wi-Fi (it’s excellent across Vietnam) and even a modest plan lasts.

💡 Rule of thumb: ~1 GB/day is comfortable for a normal traveler. Only go “unlimited” if you’ll stream, tether a laptop, or work online.

8. Does your phone support eSIM?

An eSIM needs an eSIM-capable, carrier-unlocked phone. Model names are a good guide, but the only sure test is to dial *#06# — if a 32-digit EID appears, your phone has eSIM hardware.

🍎 iPhone

iPhone XS, XR, SE (2020) and everything newer. Note: US iPhone 14 and later are eSIM-only (no card tray), and iPhones bought in mainland China/Hong Kong usually have no eSIM.

🤖 Google Pixel

Pixel 3 and newer. A few Hong Kong / early-Asia Pixel units are the exception — check with *#06#.

📱 Samsung Galaxy

Galaxy S20 and newer, Note 20, all Z Fold/Flip. Most budget A-series don’t have eSIM, so check with *#06# if you’re unsure.

⚠️ No eSIM, or a carrier-locked phone? No problem — just get a local physical SIM instead. It works in any unlocked handset.

9. How to set up an eSIM (iPhone & Android)

The golden rule: install it on Wi-Fi before you fly, and it activates automatically when it sees a Vietnamese network on arrival.

Scanning an eSIM QR code with a smartphone to install a data plan — Installing an eSIM is a 60-second QR scan you do at home before you fly. (Photo: Sinafe, CC BY-SA 4.0, via Wikimedia Commons.)

On iPhone:

Buy in the provider’s app (Airalo, Holafly…) and get your QR code.
Settings → Cellular → Add eSIM → Use QR Code → scan it.
Label the new line “Vietnam”; keep your home line as primary for calls/texts.
Set Cellular Data to the Vietnam eSIM, and turn Data Roaming ON for that line.

On Android (Samsung/Pixel):

Settings → Connections / Network → SIM manager → Add eSIM → scan the QR.
Set Mobile data to the Vietnam eSIM; keep calls/SMS on your home SIM.
Turn Data Roaming ON for the eSIM line (leave it OFF for your home SIM).

💡 “Data Roaming ON” sounds scary but it’s correct — a travel eSIM registers as roaming even though you’re paying nothing extra. Don’t panic if it shows “No Service” before you land; it wakes up in Vietnam. And don’t delete the eSIM — the QR is usually one-time-only.

10. Buying a physical SIM & the passport law

Getting a local SIM is quick, but Vietnam registers every SIM by law, so there’s one requirement: your passport.

Bring your original passport (not a photocopy). Staff scan it and register the SIM to you on the national database — a legal requirement since 2018. It takes a few minutes.
The counter staff insert the SIM, install your data plan and test it before you leave — nothing to configure yourself.
Keep your home SIM safe in the little card holder so you don’t lose it.
You can hold up to 3 prepaid SIMs per carrier — a non-issue for a normal trip.

⚠️ Never buy a “ready-to-use” SIM from a street stall or market. Pre-activated SIMs are registered to someone else and get switched off in Vietnam’s ongoing crackdown — some stop working within days. Buy only at official carrier counters and stores.

11. Keep your home number: dual-SIM & bank OTP

The classic traveler mistake is losing access to bank one-time-passwords (OTPs) because they text your home number. You don’t have to choose between your number and cheap data — use both.

With an eSIM: your physical home SIM stays in the phone. Leave it active for calls and SMS, but turn its data roaming OFF so you’re never charged — the eSIM does all the data.
With a physical local SIM: if your phone is dual-SIM (two slots or SIM + eSIM), keep your home SIM in the second slot for OTPs. If it’s single-SIM, put your home SIM somewhere safe and check important messages on hotel Wi-Fi.
Before you travel, make sure your bank’s app works over data (not just SMS), or set up an authenticator app so you’re not locked out.

💡 One line for data (cheap Vietnamese eSIM/SIM), one line for identity (your home number). That combo keeps Grab, maps and your bank happy.

12. Coverage where you’re headed: cities, coast & mountains

In the cities you’ll have flawless 4G/5G on any network. It’s the trips beyond town where the carrier choice matters — and where Viettel pulls ahead.

A traveler photographs the mosaic dragon columns of Linh Phuoc Pagoda in Da Lat, Vietnam, with a phone — From Hanoi to Phu Quoc, Viettel keeps you connected well beyond the big cities. (Photo: RG72, CC BY-SA 4.0, via Wikimedia Commons.)

Cities & resorts (Ho Chi Minh City, Hanoi, Da Nang, Hoi An, Nha Trang, Hue): excellent on all carriers, 5G widespread.
Islands & beaches (Phu Quoc, Con Dao, Cat Ba): main towns and resorts are well covered; Viettel reaches the quieter roads best.
Mountains & the far north (Sapa, the Ha Giang Loop, Phong Nha): Viettel is essentially non-negotiable — it’s the only network you can count on, and even then expect gaps in deep valleys and tunnels.

💡 Doing the Ha Giang Loop or a national park? Get Viettel and download offline Google Maps + an offline translation pack before you go, so a dead spot never strands you.

New to getting around here? Pair your data with our Grab & ride-app guide, and plan the trip with the complete Vietnam travel guide or the best time to visit.

13. Stay connected for less — and avoid the common traps

A few habits keep costs down and headaches away:

Lean on free Wi-Fi. Nearly every hotel, café and restaurant in Vietnam has good free Wi-Fi — do your streaming, backups and app updates there and a modest data plan lasts the whole trip.
Buy trip-sized upfront. It’s cheaper and calmer than topping up mid-trip. Local SIMs top up via the carrier app, e-wallets (MoMo/ZaloPay) or shop scratch cards; eSIMs top up in the provider app.
Tethering is usually fine on local SIMs and major eSIMs, but some “unlimited” plans limit hotspot — check before you rely on it for a laptop.
Don’t overbuy. Unless you stream, ~1 GB/day is plenty (see the usage table above).
Live data is a safety tool. Working maps and Grab make you far less of a target for the classic taxi and street tourist scams.

Sorting the rest of the trip? Line up your visa / e-visa and money & payments next — those two plus connectivity are the whole “arrival admin” list.

🛡️ Travel insurance for VietnamSafetyWing’s Nomad Insurance covers medical emergencies and travel mishaps on a simple monthly plan — ideal for long trips, digital nomads and anyone who wants cover that’s easy to start and stop.🛡️ Get a SafetyWing quoteAffiliate link — we may earn a commission at no extra cost to you.

14. Before you fly: your 2-minute connectivity checklist

Run through this and you’ll land online, on budget, and with your bank still reachable:

✅ Decide: eSIM (easy) or local SIM (cheapest)?
✅ Check your phone: dial *#06# — got an EID? eSIM works. Phone unlocked? Physical SIM works.
✅ Pick Viettel if you’ll travel beyond the cities.
✅ eSIM: buy it, install on home Wi-Fi, set data line + roaming ON for that line. Don’t delete it.
✅ Local SIM: pack your passport; buy at an official arrivals-hall counter or a city store.
✅ Keep your home number active for bank OTP (data roaming OFF on it).
✅ Download offline maps + translation for remote areas.

💡 Do the eSIM install the night before you fly — then the only thing you’ll do at the airport is walk out and open Grab.

📚 Vietnam-wide essentials

★ Start here Vietnam Travel Guide: Regions, Best Time, Itineraries, Costs & Visas →

🧭Vietnam-wide essentials116

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Vietnam eSIM & SIM — FAQ

Q. Is an eSIM or a physical SIM better for Vietnam?

An eSIM is easier — you buy it online, scan a QR, and you’re connected the second you land, with no passport and no card to swap. A local physical SIM is cheaper and gives you far more data (a Viettel city SIM is about 150,000 VND / US$6 for 5 GB a day for a month). Choose the eSIM for convenience, the local SIM for value.

Q. Which network is best for tourists in Vietnam?

Viettel. It’s the largest carrier with by far the widest coverage, including the coast, mountains and islands where the others fade out. Vinaphone and Mobifone are perfectly good if you’re only in the cities.

Q. Is there 5G in Vietnam in 2026?

Yes. Commercial 5G has been live nationwide since 2024–25, reaches every province and about 90% of the population, and ranks among the fastest in the world. It’s included free on tourist data plans — you just need a 5G phone.

Q. What’s the cheapest way to get data in Vietnam?

A local Viettel SIM from a store in town — roughly 150,000 VND (US$6) for 5 GB per day for 30 days. Airport counters charge 2–3× that for the same data, so buy in the city if you can, or use an eSIM for convenience.

Q. Do I need my passport to buy a SIM in Vietnam?

Yes, for a physical SIM — Vietnamese law requires every SIM to be registered to a passport, so bring the original. Travel eSIMs (Airalo, Holafly, Klook, Trip.com) don’t require a passport; you just buy online.

Q. Can I buy a Vietnamese eSIM before I arrive?

Yes, and you should. Buy a travel eSIM (Airalo, Holafly, Klook, Trip.com) online, install it on Wi-Fi at home, and it activates automatically when you land. Native Viettel/Vinaphone eSIMs generally need in-person passport registration, so travel eSIMs are the simplest pre-arrival option.

Q. Does my phone support eSIM?

Most phones from 2018 on do: iPhone XS/XR and newer, Google Pixel 3+, Samsung Galaxy S20+ and the Z series. Dial *#06# — if a 32-digit EID appears, you have eSIM. Note that many budget Androids, some older Samsungs, and mainland-China iPhones don’t. If yours doesn’t, use a physical SIM.

Q. How much data do I need for a week in Vietnam?

For a normal traveler using maps, Grab, messaging and some social media, about 0.5–1 GB a day — roughly 3.5–7 GB for a week. Only go for a big or ‘unlimited’ plan if you stream video or tether a laptop; otherwise use free Wi-Fi for heavy tasks.

Q. Is ‘unlimited’ eSIM data really unlimited?

Usually not. Most ‘unlimited’ plans give a high-speed daily allowance (often 3 GB) and then slow down sharply. Airalo throttles to a still-usable ~1 Mbps; some budget brands drop to a crawl. Holafly is the main provider with genuinely uncapped daily data (though its hotspot is limited).

Q. Will I have signal in Sapa, Ha Giang or on the islands?

On Viettel, mostly yes — it’s the only network you can rely on in the far north and on quieter island roads, though deep valleys and tunnels still have dead spots. Download offline maps and a translation pack before heading into remote areas.

Q. Can I keep my home number for bank OTPs?

Yes. With an eSIM your home SIM stays in the phone — keep it active for calls and SMS but turn its data roaming OFF so you’re not charged; the eSIM handles data. With a physical local SIM, use your phone’s second slot (or an authenticator app) so you never miss a one-time password.

Q. Should I buy a SIM at the airport or in the city?

The airport is convenient but charges 2–3× the city price for the same data. If you want to save, grab a small package at the airport (or an eSIM) to get going, then buy a cheap month-long Viettel package at a store in town. Only use the official carrier counters in the arrivals hall.

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