Does the eSIM work in Ha Long Bay and the rural parts of the Mekong Delta too?

In Ha Long Bay a signal is usually available in the busiest spots and on tourist junks close to the coast, but it may be weak or missing on the remoter islands. Mekong Delta coverage is good along the main canals and in cities such as Cần Thơ, though in the more secluded areas it may fade. We recommend downloading offline maps before venturing into the more outlying areas.

Will the eSIM let me use transport apps like Grab in Vietnam?

Yes, definitely. Across Vietnam, Grab is the reference app for motorbike taxis, chauffeured cars and even food delivery, and in cities such as Hanoi and Ho Chi Minh City, where ordinary taxis may charge tourists opaque fares, it is practically indispensable. With data active from the first moment, you can use Grab as soon as you leave the airport.

Does the signal also reach Sapa and the mountainous regions of northern Vietnam?

Around Sapa and its terraced rice fields, 4G is good in urban areas and on the main tourist routes. On excursions to remoter ethnic minority villages, or along high-altitude trails, the signal may turn unstable or vanish entirely. It is advisable to download offline maps of your route and to ask your accommodation about the specific coverage.

Do I need an adapter to charge my phone in Vietnam?

Yes, almost certainly. Sockets in Vietnam are Types A, B and C at 220V. Type C physically fits standard Italian plugs, but Types A and B, which are widespread, particularly in cheaper hotels and guest houses, need an adapter. Take a universal adapter with you to avoid surprises, especially outside the big international hotels.

What is the time difference between Rome and Vietnam?

Vietnam runs on UTC+7: 6 hours ahead of Rome in summer (when Italy is on UTC+1) and 7 hours ahead in winter (UTC+0). At 12:00 noon in Rome it is 18:00 in the evening in Vietnam in summer. Worth remembering when you plan calls home, and it explains why Italy is still asleep when you land in Hanoi in the morning.

How much does an eSIM for Vietnam cost?

eSIM plans for Vietnam start from €1.59. You pay once for the amount of data you choose — no subscription, no monthly fees and no hidden roaming charges. Plans with more data or longer validity cost more.

Is an eSIM or roaming better in Vietnam?

A local eSIM in Vietnam is almost always much cheaper than the roaming of your Italian operator. In the European Union roaming is often already included ("Roam Like at Home"), but outside the EU the costs can be very high — with an eSIM you know the price in advance and pay only for the data plan you need.

Which operator or network does the eSIM use in Vietnam?

The eSIM in Vietnam connects automatically to local networks such as Viettel, Mobifone, Vinaphone (VNPT), MobiFone — on 4G/LTE and, where available, 5G. Coverage reaches about 85% in inhabited areas. Your phone picks the best available network by itself.

Can I keep my Italian number with the eSIM in Vietnam?

Yes. Your Italian SIM and number stay active — the travel eSIM works alongside it as a data-only line. You stay reachable on WhatsApp, iMessage or Wi-Fi while you use the local network to browse. Traditional calls and SMS still go through your Italian number.

Should I activate the eSIM before or after I leave?

Install the eSIM at home, on Wi-Fi, before you leave. The data plan then activates automatically when you connect in Vietnam. That way you are online as soon as you arrive, without looking for airport Wi-Fi or buying a local SIM.

Can I top up or renew the plan for Vietnam?

Yes. When the data runs out or the validity expires, just buy a new plan — the eSIM profile already installed is kept and does not need to be installed again. You stay connected without interruption.

Can I share the connection (hotspot) in Vietnam?

Yes. You can share the connection in Vietnam through a personal hotspot with a computer, tablet or other devices. Shared data is deducted from your plan, so allow a few extra gigabytes if you expect to use the hotspot often.

eSIM plans for Vietnam

Instant delivery

Your eSIM for Vietnam is available from €1.59 and active straight away: in Vietnam it connects to the Viettel, Mobifone, Vinaphone (VNPT), MobiFone networks (4G/LTE, 5G where available), coverage 85%. Install it by QR code before you leave — no roaming and no SIM swap.

Your selection

Select a plan

Payment methods

Instant email delivery
30-day returns
Support in Italian
Visa · Mastercard · PayPal (including Pay in 3) · Apple Pay · Google Pay · Satispay

eSIM for Vietnam — at a glance

From: €1.59
Local networks: Viettel, Mobifone, Vinaphone (VNPT), MobiFone
Technology: 4G/LTE
Network coverage: 85%
Activation: QR code — install before you leave
Recommended data: 1–3 GB light use · 5 GB with social media · 10 GB+ streaming

All eSIM plans for Vietnam

Data	Validity	Price
Unlimited	1 day	€1.59
Unlimited	3 days	€5.49
Unlimited	5 days	€8.99
Unlimited	7 days	€11.99
Unlimited	10 days	€16.49
Unlimited	15 days	€24.49
Unlimited	30 days	€47.49
1 GB	7 days	€2.49
2 GB	15 days	€3.49
3 GB	30 days	€4.99
5 GB	30 days	€6.99
10 GB	30 days	€12.99
20 GB	30 days	€19.99
50 GB	30 days	€32.99

Vietnam is a country you take in like one long breath: Ha Long Bay rising from the morning mist, the fragrant, chaotic streets of Hanoi, the golden lanes of Hội An, the terraced rice fields of Sapa. Travelling this slender strip of land, which runs for thousands of kilometres from north to south, demands a constant connection, whether to track down the right xe om, book a last-minute night train or find your way around districts with no signs in Latin script. Activate a Datiovunque eSIM before leaving Rome and you touch down at Nội Bài or Tân Sơn Nhất already online, ready to dive into Vietnam without wasting a minute.

Flight from Rome

Roughly 11–13 hours (usually one stopover, for instance in Dubai, Doha or Bangkok)

Time zone

UTC+7 (6 hours ahead of Rome in summer, 7 in winter)

Best season

February–April for the centre-south; October–December for the north (Hanoi, Sapa)

Power socket

Type A/B/C (220V) — adapter recommended for Italian plugs

Why an eSIM is essential in Vietnam

In Vietnam a data connection makes the real difference between a smooth trip and hours lost in confusion. Cities such as Hanoi and Ho Chi Minh City are mazes of alleys with no visible house numbers, and there Google Maps is no luxury but a daily survival tool. Local apps for booking motorbike taxis, such as Grab, are indispensable — and they only work with internet switched on. Together, the Vietnamese operators Viettel, Mobifone and VinaPhone blanket 85% of the territory with a stable 4G/LTE network that serves the big cities as well as the rural Mekong Delta and the mountainous north. A local SIM can technically be bought at the airport, but you need your physical passport, it can create queues, and travellers are left without a connection at the most critical point of their arrival. With an eSIM, everything is set before take-off. Consider too that Vietnam is on UTC+7, six hours ahead of Rome in summer; telling your loved ones you have landed, with no desperate search for public Wi-Fi, is worth the price of a data plan all by itself.

Network coverage in Vietnam

Operator

Viettel

+ Mobifone

Technology

4G/LTE

Coverage

85%

Installing an eSIM for Vietnam: how does it work?

1
Buy the plan
Choose the right data plan for Vietnam and complete your purchase.
2
Scan the QR code
Open the email that holds the QR code and point your smartphone's camera at it.
3
Activate the eSIM
Follow your device's instructions to add the eSIM as a data plan.
4
Start browsing
Turn the eSIM on once you land in Vietnam and get online straight away.

1
Buy the plan
Choose the right data plan for Vietnam and complete your purchase.
2
Scan the QR code
Open the email that holds the QR code and point your smartphone's camera at it.
3
Activate the eSIM
Follow your device's instructions to add the eSIM as a data plan.
4
Start browsing
Turn the eSIM on once you land in Vietnam and get online straight away.

Which eSIM plan fits you best?

Holidaymakers

Going away for 1-2 weeks? Pick a plan with 3-5 GB for maps, photos and messages.

Business travellers

For video conferencing and email while travelling, we suggest at least 5 GB or an unlimited plan.

Backpackers

A longer trip is better served by 10+ GB, or by a regional plan that spans multiple countries.

Families

For families with several devices we recommend a plan with tethering support and enough data.

Which suits Vietnam best: an eSIM, a local SIM or a Wi-Fi hotspot?

	eSIM	Local SIM	Wi-Fi hotspot
Activation	Instant (QR code)	Bought locally	Pick-up/delivery
Setup	2 minutes	SIM swap needed	Extra device
Price	From €1.59	€5–30	€5–15/day
Network	Local 4G/LTE	Local 4G/LTE	Local 4G/LTE
Devices	1 smartphone	1 smartphone	Up to 5 devices
Flexibility	Top up at any time	Fixed data allowance	Daily rental
Recommended	Ideal for travellers	For long stays	For groups/families

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