HelloRoam offers a Vietnam eSIM from €3.02, with access to 212+ carrier networks across 185+ countries. Your e SIM taps into local 4G/5G networks the moment you land, no roaming charges. Scan the QR code and you're online in under two minutes, on any eSIM compatible phone. Your Three Ireland, Vodafone IE, or Eir number keeps running on dual SIM while your e-sim handles the data.
- local networks
212+- 5G support
5G- to activate
2 minutes
Last updated
Vietnam data plans from HCMC to Hanoi on local networks
Cheap eSIM for Vietnam, starting from €3.02. Local 4G/5G data on top carrier networks in Vietnam. Works on all eSIM compatible phones. Vietnam rewards Irish travellers with Ho Chi Minh City's energy, Hoi An's lantern-lit ancient town, Ha Long Bay's karst islands, and Hanoi's Old Quarter. An eSIM for Vietnam from HelloRoam starts at €3.02 and covers the full country on local networks. Activate by QR at home before flying from Dublin. No roaming charges, no contract, no physical SIM swap. GDPR-compliant checkout, 180-day refund guarantee on unactivated eSIMs.
Vietnam eSIM with fast 5G coverage
HelloRoam eSIM plans for Vietnam start from €3.02. Connect on Vinaphone and Viettel Mobile networks with 5G in Hanoi and Ho Chi Minh City. Sort your data before you fly and arrive already connected.
- Plans start at €3.02 with 5G speeds
- Coverage from Viettel Mobile and 2+ other operators
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Vietnam coverage across major cities
- Network
- 5G
- Plans From
- €3.02
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Vietnam
Follow these steps to get started with an eSIM on your iPhone or Android.
Set up an eSIM on your iPhone with the HelloRoam app
Set up an eSIM on your Android with the HelloRoam app
- 1
Choose your plan and checkout
Pick a data plan for your destination and complete checkout online.
2Scan the QR code
Scan the QR code to install your eSIM instantly.
- 3
Activate in minutes: ready on arrival
Your eSIM installs instantly and activates the moment you land.
4Manage everything from the app
Track usage, top up data, and manage all your eSIMs in one place.
Trip changed? No bother, we have got you sorted.
Travel plans shift, and that's grand. HelloRoam refunds unactivated, unscanned eSIMs in full for up to 180 days after purchase, no drama.
Learn more about our refund policyHelloRoam Vietnam eSIM vs Three Ireland, Vodafone IE and Eir roaming
Comparing eSIM vs a travel SIM card for Vietnam? Eir charges up to €5.99/day for Worldwide Roaming, Vodafone IE up to €6.99/day for Global Roaming, and Three Ireland applies daily charges outside its Go Roam zone. Skip the airport SIM counter at Dublin Terminal 1 and get a prepaid eSIM from €3.02 with instant QR activation and a 180-day refund on unactivated eSIMs.
| Feature comparison | HelloRoam | Irish carrier roaming add-on | Limited data eSIM |
|---|---|---|---|
| 180-day refund policy |  Feature available |  Feature not available | Feature not available |
| 24/7 live chat support | Feature available |  Feature available | Feature available |
| €0 activation fees | Feature available | Feature not available | Feature available |
| Free hotspot and data sharing | Feature available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature not available | Feature available |
| Premium Vietnam carrier networks | Feature available | Feature not available | Feature not available |
Why Travellers from Ireland Use HelloRoam e-sim for Vietnam
24/7 live chat support
Stuck at 2am in Bangkok or sorting things out the night before a Dublin Airport departure? HelloRoam support answers on live chat, WhatsApp, or email, 24/7, with a real person replying in under five minutes. Connectivity issues don't wait for office hours, and neither does our team, wherever you've landed.
Best eSIM for Vietnam
Travel to Vietnam with a prepaid eSIM card that connects to local 4G/5G networks. Buy your plan, scan the QR code, and get online when you land. No Eir or Vodafone IE roaming fees, no SIM swap, no airport kiosk queue. A digital SIM profile installs in minutes so you arrive connected without touching a plastic card.
Dual SIM ready
Keep your Three Ireland, Vodafone IE, or Eir mobile number active for calls and texts. HelloRoam runs travel data on a second eSIM line on any dual SIM compatible phone. No need to choose between your Irish number and your data abroad. Running two lines on one handset means family back home can always reach you on your usual number while you use local data rates.
212+ partner networks worldwide
HelloRoam connects to 212+ carrier networks across 185+ countries. Your phone switches automatically to the strongest available 4G/5G signal. That breadth of mobile network coverage means reliable internet access from European cities to long-haul destinations in Asia and the Americas.
Usage alerts before you run out
We send you an alert at 80% usage so you never hit a surprise data cap mid-trip. Top up instantly from the app without reinstalling your eSIM. Real-time data monitoring keeps your allowance in view so you stay in control of your spend from day one to the last day of your holiday.
Local network speeds in Vietnam
HelloRoam eSIM connects to local 4G/5G networks in Vietnam at local data prices. You get fast speeds for maps, video calls, and streaming without paying Eir or Vodafone IE daily roaming rates. Plugging into the destination's own mobile infrastructure means you pay what residents pay, not what Irish carriers charge for international add-ons.
Global and regional plans
Heading to more than one country? HelloRoam regional plans cover Europe, Asia, the Americas, and 185+ destinations in one e-sim purchase. One multi-country data plan means no SIM swapping at borders and a single account managing all your international mobile data in one place.
Hotspot and data sharing in Vietnam
Share your Vietnam eSIM data with a laptop or tablet using your phone's hotspot. No extra fees, no setup. Works on all eSIM compatible phones. Tethering and mobile hotspot support means the whole group stays online without buying separate data plans for every device.
Best eSIM Prices for Vietnam
HelloRoam, the best eSIM Vietnam. Compare plans and find the right data for your trip.
| Number of days | Price |
|---|---|
| 1 day | €3.83 |
| 3 days | €10.92 |
| 7 days | €23.59 |
| 15 days | €45.95 |
| 22 days | €62.33 |
| 30 days | €78.11 |
HelloRoam vs Other eSIM Providers for Vietnam
eSIM provider reviews from Irish travellers consistently highlight the 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers on the things that matter most for your Vietnam holiday.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| 24/7 live chat support | Feature available | Feature available | Feature available | Feature not available | Feature available | Feature available |
| €0 activation fees | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Free hotspot and data sharing | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
| Premium Vietnam carrier networks | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| Own branded carrier identity (SPN) | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature available |
What Is an e SIM? How eSIM Works in Vietnam
An eSIM is a digital SIM built directly into your phone: no plastic chip, no SIM tray. Scan a QR code to activate in under 2 minutes on any eSIM compatible iPhone or Android. It works as a prepaid data plan for Vietnam travel with no airport SIM counter, no physical SIM card, and no carrier contract. Sort everything at home before you head to Dublin Airport, Shannon, Cork, or Knock and you are ready to go the moment you land. guide
Mobile connectivity guide for Vietnam
Vietnam has 5G mobile coverage in Hanoi and main cities. Vietnamobile, Vinaphone, and Viettel Mobile are the core networks. For Irish visitors, Vietnam is outside the EU, so Irish carrier EU roaming does not apply. A HelloRoam eSIM from $4.
92 is typically far cheaper than international daily roaming add-ons. A HelloRoam eSIM means you arrive in Hanoi connected without hunting for a SIM card at the airport.
- HelloRoam connects to Viettel Mobile 5G, Vinaphone 5G, MobiFone 5G in Vietnam
- 5G coverage across Hanoi and major cities
- Connect on Vietnamobile, Vinaphone, and Viettel Mobile
- Activate before your Dublin departure
eSIM Travel Tips for Vietnam
Sort your data before your flight from Dublin
Buy your HelloRoam eSIM for Vietnam at home, activate it over Wi-Fi, and enable data when you land at Noi Bai (Hanoi) or Tan Son Nhat (Ho Chi Minh City). You skip the airport SIM card stalls and step off the plane already connected.
Keep your Irish number active
On a dual SIM phone, keep your Eir, Three IE, or Vodafone IE SIM for calls and texts while using HelloRoam for data in Vietnam. Family and colleagues back in Ireland can still reach you on your regular Irish number.
Offline maps save data on city breaks
Download Google Maps for Hanoi, Ho Chi Minh City, and Hoi An offline before you leave Ireland. Vietnam's major cities and the tourist route from Ha Long Bay to Hoi An are well covered. Remote mountain areas near Sapa or the Ha Giang loop can have patchy signal.
Travel insurance and emergency numbers
Keep your travel insurance details handy. In Vietnam, dial 113 for police, 114 for fire, and 115 for ambulance. Save these before you fly. Your HelloRoam eSIM keeps your insurer, the Irish embassy in Hanoi, and translation tools accessible throughout your trip.
Currency and card acceptance
Notify your Irish bank before travelling to Vietnam. Card acceptance is generally good in Hanoi but carry some local currency for smaller vendors and public transport. Currency conversion apps work well on a HelloRoam data connection.
Mobile networks in Vietnam: what Irish visitors need to know
HelloRoam connects on Vinaphone and Viettel Mobile in Vietnam. Viettel covers rural areas and the north-to-south tourist route. Vinaphone has strong 5G in Hanoi and Ho Chi Minh City. Your eSIM selects the best available signal automatically.
- Viettel Mobile
- 5G
- Vinaphone
- 5G
- MobiFone
- 5G
HelloRoam eSIM vs Irish carrier roaming in Vietnam
Your connectivity options for a Vietnam trip from Ireland.
| Category | HelloRoam eSIM Recommended | Local Vietnam SIM card | Eir, Three IE, or Vodafone IE roaming in Vietnam |
|---|---|---|---|
| Typical cost | From €4.25 total | €2.16–€6.91 total | €8.64–€17.29/day |
| Details | Plans from €3.02. Buy before your flight from Dublin, activate at home, and arrive in Vietnam already on local data. No roaming charges and no airport SIM queues. | Available at Hanoi airport but requires setup time after a long flight. Prepaid tourist SIMs involve passport registration and unused data is typically forfeited on return. | Outside the EU, Irish carrier international roaming can cost $5 to $15 per day. A week in Vietnam on roaming could mean $35 to $100 in data charges. HelloRoam starts at €3.02. |
Prices approximate as of . Actual savings vary.
Best time to visit Vietnam from Ireland
Vietnam is a popular destination for Irish holidaymakers and those visiting family or friends. The ideal season to visit Hanoi depends on the local climate cycle.
Reviewed by HelloRoam Editorial Team
Reviewed by HelloRoam Editorial Team
Top Destinations in Vietnam
Bien Hoa
Bien Hoa is a major industrial city in Dong Nai province, part of the greater Ho Chi Minh City economic zone. HelloRoam keeps you connected here.
Viettel and Vinaphone cover Bien Hoa with 4G. About 30 km from Tan Son Nhat Airport in Ho Chi Minh City.
Can Tho
Can Tho is the Mekong Delta's main city, famous for its floating markets, river life, and fresh tropical fruit. HelloRoam keeps you connected as you explore the waterways.
Viettel covers Can Tho with 4G. Activate before your boat trip to the Cai Rang floating market.
Cn Th
Visit Cn Th and stay online with HelloRoam data plans that cover all of Vietnam.
Can Tho in the Mekong Delta has Vinaphone 4G coverage in the city center. The river network areas have variable signal.
Da Nang
Da Nang is Vietnam's coastal gem, a modern city backed by mountains and blessed with long sandy beaches. It's the perfect base for day trips to Hoi An and the Marble Mountains.
Use HelloRoam data to book beach clubs, scooter rentals, and day trips to Hoi An without hunting for a local SIM card.
Ha Noi
Ha Noi is the official romanised spelling for Vietnam's capital, a city of history, lake temples, and one of Asia's best street food scenes. HelloRoam keeps you connected.
Viettel 4G covers all of Hanoi. Activate before landing at Noi Bai International Airport.
Hai Ba Trng
HelloRoam covers Hai Ba Trng and all of Vietnam with fast, reliable mobile data.
Hai Ba Trung district in Hanoi has Vinaphone 4G coverage. This central district has consistent signal throughout.
Hai Phong
Hai Phong is Vietnam's main northern port city and gateway to Cat Ba Island and Ha Long Bay. HelloRoam keeps you connected from the city to the bay.
Viettel and Mobifone cover Hai Phong with 4G. Take the fast ferry from Hai Phong to Cat Ba Island.
Haiphong
HelloRoam gives you instant data access in Haiphong, Vietnam with no extra fees.
Haiphong has Vinaphone 4G coverage across the city. Cat Bi International Airport has terminal coverage for travelers.
Hanoi
Hanoi is Vietnam's ancient capital, a city of tree-lined boulevards, French colonial architecture, the Old Quarter's maze of streets, and some of the world's best street food.
Hanoi's Old Quarter is dense and maze-like. Keep HelloRoam running so you never lose your way between pho stops.
Ho Chi Minh City
Stay connected in Ho Chi Minh City with HelloRoam eSIM data plans that work across Vietnam.
Ho Chi Minh City has Vinaphone 4G throughout. Tan Son Nhat Airport has strong indoor signal in all terminals.
Hue
Hue is Vietnam's imperial city, a UNESCO-listed complex of palaces, tombs, and pagodas along the Perfume River. HelloRoam keeps you connected as you explore.
Viettel covers Hue with 4G. Activate before landing at Phu Bai Airport or arriving on the Reunification Express train.
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Reviews
What Our Customers Say
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travellers have used HelloRoam
Cat
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!
Rated 5 out of 5 by this reviewer
Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.
Ilona
Rated 5 out of 5 by this reviewer
metulker
Hard to set up but help was good
Rated 5 out of 5 by this reviewer
Reuben
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.
Rated 5 out of 5 by this reviewer
Angeline
Reliable connection. Reasonable pricing.
Rated 4 out of 5 by this reviewer
Last updated
Your Vietnam eSIM Questions Answered
How do Irish visitors buy eSIM Vietnam plans before a Ho Chi Minh City and Hanoi trip from Dublin?
e SIM Vietnam plans from HelloRoam start from €3.02 and cover Ho Chi Minh City, Hanoi, Da Nang, and the full country on local networks. HelloRoam delivers a QR code by email, activated at home before you board. No roaming charges from your Irish provider, no physical SIM card, and a 180-day refund guarantee on unactivated eSIMs on every order.
What does an e-sim Vietnam plan cover for an Irish road trip from north to south?
A HelloRoam e-sim Vietnam plan covers the full country from Hanoi to Ho Chi Minh City from €3.02, including Hoi An, Da Nang, Ha Long Bay, and Hue. Activate at home before flying from Dublin so data is live on arrival. No physical SIM, no roaming fees, and a 180-day refund guarantee on unactivated eSIMs on every prepaid order.
What is the best eSIM for Vietnam from Ireland?
HelloRoam is a top-rated eSIM for travellers from Ireland visiting Vietnam. Plans start from €3.02 and connect through our worldwide network of 212+ carriers, giving you local 4G/5G speeds in Vietnam. Activate via QR code in under two minutes, keep your Three Ireland, Vodafone IE, or Eir number on dual SIM, and enjoy a 180-day refund window on unactivated eSIMs. No daily roaming charge and no carrier contract.
How much does an eSIM for Vietnam cost from Ireland?
A Vietnam eSIM starts from €3.02. Fixed data plans run from 1GB to 20GB. Unlimited daily plans suit longer trips. All plans include local 4G/5G access with no overage charges and no carrier contract. That is far less than what Eir charges for non-EU Worldwide Roaming or Vodafone IE for Global Roaming.
Which networks does a Vietnam eSIM connect to?
eSIM in Vietnam connects to local 4G/5G networks. Your phone picks the strongest available signal automatically on arrival, no manual carrier selection needed. Coverage spans major cities, airports, main roads, and most rural areas. You get the same local network speeds as residents of Vietnam, not the premium daily rates Eir or Vodafone IE charge for international roaming.
How do I get an eSIM for Vietnam before flying from Ireland?
Getting your eSIM for Vietnam takes three steps. First, choose your plan at helloroam.com and pay in EUR. Second, scan the QR code from your confirmation email in Settings under Mobile Data, then Add eSIM. Third, your e-sim installs in under two minutes and activates when you land. Do everything at home before you head to Dublin Airport, Shannon, Cork, or Knock. No shop visit, no physical SIM swap, no queue.
Does iPhone support eSIM for Vietnam travel from Ireland?
Yes. iPhone XS and all newer models support your eSIM for Vietnam. Go to Settings, tap Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Irish number stays active on your main SIM through dual SIM while HelloRoam handles all travel data on the eSIM line. iPhone 14 and later are eSIM-only with no SIM tray needed.
What is the best eSIM for Vietnam for Irish travellers?
HelloRoam is a top eSIM choice for Vietnam, connecting on Vinaphone and Viettel Mobile networks. Plans start at €3.02. Buy before your Aer Lingus or connecting flight, scan a QR code at home in Dublin, and arrive in Hanoi or Ho Chi Minh City already on local data.
Does HelloRoam eSIM work in Vietnam?
Yes, HelloRoam eSIM works in Vietnam on Vinaphone and Viettel Mobile networks. Activate at home before your flight and connect the moment you land at Noi Bai Airport (Hanoi) or Tan Son Nhat Airport (Ho Chi Minh City).
Do Irish travellers need a special SIM for Vietnam?
Vietnam is outside the EU, so Irish carrier EU roaming does not apply. A HelloRoam eSIM from €3.02 is typically far cheaper than international daily roaming add-ons from Eir, Three IE, or Vodafone IE.
Which networks does HelloRoam use in Vietnam?
HelloRoam eSIM for Vietnam connects on Vietnamobile, Vinaphone, and Viettel Mobile. Your phone automatically selects the strongest 5G signal as you travel around Hanoi and Vietnam.
How much does an eSIM for Vietnam cost?
HelloRoam eSIM plans for Vietnam start at €3.02. Larger plans are available for longer stays or data-heavy trips.
How much data do I need for a week in Vietnam?
A week in Hanoi using maps, messaging, and social media typically uses 3 to 6 GB. Streaming in your hotel evenings or making video calls back to Ireland adds more. Choose a 5 or 10 GB plan for a comfortable buffer.
How many days does the Vietnam eSIM last?
HelloRoam eSIM plans for Vietnam last from 12 to 30 days depending on the data size you pick. Vietnam has 5G coverage via Viettel Mobile. A longer plan suits Irish travellers on extended holidays or working holidays abroad. Select your plan, scan the QR code at home in Ireland, and connect from the moment you land.
Does Vietnam have 5G coverage?
Yes, Vietnam has 5G coverage through Viettel Mobile. HelloRoam eSIM plans connect on the best available 5G signal across Vietnam. Buy your plan before your flight from Dublin and connect straightaway on landing.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before you buy.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within Vietnam. Urban areas typically have strong network coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before departure. Activation requires an internet connection, which may not be available at your destination airport.
Transparency Notice
- Service Provider Name (SPN)
- HelloRoam appears as the carrier name on your phone's status bar through the SPN, a standardized field in the eSIM profile. Unlike most travel eSIM resellers, HelloRoam provisions its own Service Provider Name.
- Public Network Name (PNN)
- The PNN is the network name field in your eSIM profile, set out in the 3GPP standard TS 31.102 (EF_PNN). Your phone can read it to show the name of the network you're connected to.
- Access Point Name (APN)
- HelloRoam eSIMs auto-configure their Access Point Name during installation. Your device connects to the strongest local network infrastructure without manual settings.
Prices are our retail rates across 185+ countries. Plan recommendations use real traveller feedback and network performance data. Unactivated eSIMs qualify for a 180-day refund.
Future Syncs Limited 124 City Road, London, EC1V 2NX, UK +44 203 916 6249 help@helloroam.com Reg. No. 15950168
