Does the eSIM work in remote regions such as Sapa or the Mekong Delta?

In cities and tourist areas Viettel's 4G coverage is very good. In truly remote mountain regions around Sapa or deep in the Mekong Delta the signal can weaken or fall back to 3G. On most routes along the coast and in the main cities, though, you get reliable reception.

Do I have to register the eSIM in Vietnam?

No. Unlike local SIM cards, which have required biometric registration with face recognition since 2023, a Reisechip eSIM does away with this hassle completely. You install it before the trip and it works straight after landing.

How much data do I need for a round trip through Vietnam?

For a two-week round trip from Hanoi to Ho Chi Minh City with navigation, train bookings, restaurant searches and the occasional bit of streaming, we recommend at least 5–10 GB. If you take lots of photos and upload content, go for a 10 GB plan or an unlimited plan.

Does the eSIM work in Ha Long Bay or Phong Nha?

In Ha Long Bay coverage varies with the boat's position: near the harbour and on tourist routes there is often 4G, while on open water the signal can be weaker. In Phong Nha the basic coverage is good, though deep inside the caves themselves there is naturally no signal.

Can I use the same eSIM for Cambodia or Thailand if I extend my trip?

A Vietnam eSIM is valid only in Vietnam. If you travel on to Cambodia or Thailand afterwards, you need a plan of its own for each country. Reisechip also offers regional Asia eSIMs that cover several countries at once.

How much does an eSIM for Vietnam cost?

eSIM data plans for Vietnam start at €1.59. You pay once for the data you choose — no contract, no monthly fee and no surprise roaming bill. Bigger data packs and longer validity cost more.

Is an eSIM cheaper than roaming in Vietnam?

It depends on the destination. Inside the EU your German plan usually includes roaming, often with a fair-use data cap; outside the EU, roaming is typically charged per day or per megabyte, and a travel eSIM is usually much cheaper. With an eSIM you see the full price before you buy and pay only for your data pack.

Which mobile networks does the eSIM use in Vietnam?

In Vietnam the eSIM connects automatically to local networks such as Viettel, Mobifone, Vinaphone (VNPT), MobiFone, on 4G/LTE and on 5G where it is available. Coverage in populated areas is around 85% of the population. Your phone always picks the strongest network nearby.

Will I keep my German phone number with an eSIM in Vietnam?

Yes. Your German SIM and number stay active, and the travel eSIM runs alongside it as a data-only plan. You stay reachable on WhatsApp, iMessage or over Wi-Fi while browsing on the local network. Normal calls and texts still go through your German number, where roaming charges may apply.

Can I use the eSIM as a Wi-Fi hotspot in Vietnam?

Yes. You can share the connection with a laptop, tablet or a travel companion through your phone's personal hotspot. Hotspot use comes out of the same data allowance, so choose a slightly larger pack if you plan to tether.

Should I install the eSIM before I leave or after I arrive?

Install it at home over Wi-Fi before you travel. The data plan switches on automatically when your phone joins a network in Vietnam, so you are online the moment you land instead of hunting for airport Wi-Fi.

Will the eSIM work on my phone?

It works on any eSIM-capable phone, including iPhone XS and later, Samsung Galaxy S20 and later and Google Pixel 3 and later. The phone must also be unlocked (not tied to one network). To check yours, look for "Add eSIM" under Mobile Data or Connections in your settings.

eSIM plans for Vietnam

Instant delivery

Vietnam: your travel eSIM from €1.59 works as soon as you land and connects to Viettel, Mobifone, Vinaphone (VNPT), MobiFone (4G/LTE where available), network coverage 85% of the population. Install it by QR code before you leave Germany — no roaming charges, no SIM swap.

Your selection

Select a plan

Payment methods

Instant email delivery
30-day refund on unused eSIMs
Support in English
Visa · Mastercard · Maestro · Apple Pay · PayPal

eSIM for Vietnam at a glance

Price from: €1.59
Local networks: Viettel, Mobifone, Vinaphone (VNPT), MobiFone
Technology: 4G/LTE
Network coverage: 85% of the population
Activation: QR code — install before you leave
Suggested 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 casts a spell on travellers: magical Ha Long Bay in the north, the lantern festivals of Hoi An, the pulsing bustle of the street kitchens in Ho Chi Minh City. Whether you are travelling along 1,650 kilometres of coastline, down dense jungle paths or through crowded old towns, you need reliable mobile data, for navigation, translation and booking the next night bus in a hurry. With a Reisechip eSIM you are online as you leave the airport, with no hours of waiting at a SIM counter. Set it up before you leave, activate it after landing, done.

Flight time from Germany

about 10–12 hours

Time zone

UTC+7 (6 hours ahead of CET)

Best time to travel

November–April

Plug type

Type A/B/C (adapter recommended)

Why get an eSIM for Vietnam?

In recent years Vietnam has expanded its mobile network massively. Viettel, the country's largest operator, now covers 85% of the country with 4G/LTE, from the rice paddies of the Mekong Delta to the mountain villages of Sapa. Local SIM cards are cheap, but they often require passport registration at the airport or at an agency. With a Reisechip eSIM that falls away completely: you book your plan online, scan the QR code and you are done. Especially handy: Vietnam is a long, narrow country that most travellers cross from north to south, or the other way round, so you keep switching between cities and rural regions. A stable data connection helps you book train tickets on the Baolau platform, use Google Maps in the tangle of old-town lanes and find last-minute places to stay. Your German number stays reachable at all times.

What is network coverage like in Vietnam?

Network operator

Viettel

+ Mobifone

Technology

4G/LTE

Coverage

85% of the population

How do I install an eSIM for Vietnam?

1
Buy a plan
Pick the data plan for Vietnam that fits your trip and check out.
2
Scan the QR code
Open the email with your QR code and scan it with your phone's camera while you are still in Germany.
3
Add the eSIM
Follow the steps on your phone to add the eSIM as a data plan. Your German SIM stays in place.
4
Go online
Switch on the eSIM when you land in Vietnam and you are online straight away.

1
Buy a plan
Pick the data plan for Vietnam that fits your trip and check out.
2
Scan the QR code
Open the email with your QR code and scan it with your phone's camera while you are still in Germany.
3
Add the eSIM
Follow the steps on your phone to add the eSIM as a data plan. Your German SIM stays in place.
4
Go online
Switch on the eSIM when you land in Vietnam and you are online straight away.

Which eSIM plan suits me?

Holiday

Away for 1–2 weeks? A 3–5 GB plan covers maps, photos and messages.

Business trip

For video calls and email on the go, choose at least 5 GB or an unlimited plan.

Backpacking

On longer trips, a 10 GB+ plan or a regional plan for several countries pays off.

Family

With several devices, pick a plan with hotspot support and enough data for everyone.

eSIM vs. local SIM vs. Wi-Fi hotspot — what works best for Vietnam?

	eSIM	Local SIM card	Wi-Fi hotspot
Activation	Instant (QR code)	Buy on arrival	Pick-up or delivery
Setup	2 minutes	SIM swap needed	Extra device
Price	From €1.59	€5–30	€5–15 per day
Network	Local 4G/LTE	Local 4G/LTE	Local 4G/LTE
Devices	1 smartphone	1 smartphone	Up to 5 devices
Flexibility	Top up any time	Fixed allowance	Daily rental
Best for	Most travellers	Long stays	Groups and families

eSIM for Vietnam: frequently asked questions

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