HelloRoam sells prepaid eSIM data plans for Vietnam starting at $3.49 per day. Your e SIM connects to local 4G/5G networks the moment you land. Activate by QR code in under two minutes. Keep your AT&T, T-Mobile, or Verizon number on dual SIM while your e-sim handles data.
- networks
212+- 5G support
5G- activation
under 2 minutes
Updated
Your eSIM in Vietnam Plan with Nationwide Coverage
The cheapest eSIM for Vietnam starts from $3.49. Local 4G/5G data on top carrier networks in Vietnam. Works on all eSIM compatible phones. Airport SIM counters charge inflated rates and stack long queues at arrivals. Your e SIM Vietnam plan from HelloRoam starts at $3.49 on Viettel Mobile, Vinaphone, and MobiFone 5G networks across Vietnam. Scan a QR code at home and land with data already live on your phone. Every plan is fully prepaid with no contract, no credit check, and no roaming fees.
Vietnam eSIM with fast 5G coverage
HelloRoam offers eSIM plans for Vietnam starting at $3.49. Get 4G data on local networks. Scan a QR code before you leave and arrive connected.
- Plans start at $3.49 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
- $3.49
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Vietnam
Follow these steps to set up your eSIM card on iPhone or Android. Works for any eSIM for international travel, no replacement sim, no store visit.
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 & checkout online
Select a data plan for your destination and complete checkout.
2Scan the QR code
Scan the QR code on Wi-Fi to install your eSIM. If it says not valid or already added, check your phone's list of lines first.
- 3
Activate in minutes: ready on arrival
Install your eSIM before you fly. Your plan's days start at the eSIM's first connection to a supported network in your destination. When you land, switch the line on, turn on data roaming for that line and pick it for mobile data.
4Manage it all from our mobile app
Track usage, top up data in the app, and manage all your eSIMs in one place.
Trip changed? Don't worry, we've got you!
Plans can change anytime, and that's okay. With HelloRoam, unactivated and unscanned eSIMs qualify for a full refund within 180 days of purchase.
Learn more about our refund policyHelloRoam Vietnam eSIM vs AT&T, T-Mobile and Verizon roaming
When comparing an eSIM vs a travel SIM card for Vietnam, HelloRoam wins on price. It costs less than Verizon TravelPass ($10/day), T-Mobile international add-ons, and AT&T International Day Pass ($12/day). Skip the airport SIM shop and get a prepaid eSIM for Vietnam from $3.49 with a 180-day refund on unactivated eSIMs.
| Feature comparison | HelloRoam | Local provider | 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 |
Vietnam SIM card vs eSIM: A Practical Traveler's Guide
A SIM card for Vietnam from Tan Son Nhat Airport counters requires a queue stop, a passport check, and a wait before you reach the taxi rank. A HelloRoam eSIM starts at $3.49 on Viettel Mobile, Vinaphone, and MobiFone 5G networks. Activate by QR at home and land in Ho Chi Minh City already online.
A tourist sim card Vietnam from the airport is a physical card that needs a SIM tray swap on arrival. A HelloRoam eSIM adds a second line by QR scan. Keep your home number active while running local 5G data across Vietnam.
A prepaid SIM card Vietnam from the airport gives you fixed tourist pricing. HelloRoam plans start at $3.49 with a 180-day refund guarantee. Compare sizes at home and pick the plan that matches your trip.
A Vietnam tourist sim from HelloRoam starts at $3.49 on Viettel Mobile, Vinaphone, and MobiFone 5G networks covering Ha Long Bay, Hoi An, and the Mekong Delta. Physical SIM cards from the airport force a queue stop and restrict you to one carrier.
A Vietnam travel eSIM from HelloRoam activates by QR in two minutes with no counter visit and no passport hand-off. Airport SIM cards require both steps before you can use local data.
A Vietnam e SIM card from HelloRoam needs only your email and any international card. Local carrier store SIMs need an address and often local contact details. Plans start at $3.49 on Viettel Mobile, Vinaphone, and MobiFone 5G networks.
Why Travelers Choose an e SIM for Vietnam
24/7 live chat support
Need help at 2 AM in Tokyo or midnight in Paris? HelloRoam support is available 24/7. Message us and a real person responds in under 2 minutes. No bots, no wait queue. Mobile data problems don't wait for business hours, and neither do we.
Best Travel eSIM for Vietnam
Get unlimited data at 4G/5G speeds the moment you land in Vietnam. Skip roaming fees from AT&T, T-Mobile, and Verizon. HelloRoam connects you to local carrier networks in minutes, whether you are traveling or working. Wireless connectivity starts before you clear customs.
Keep your AT&T, T-Mobile, or Verizon number
Keep your AT&T, T-Mobile, or Verizon number active for calls and texts. HelloRoam runs as a second eSIM line on any dual SIM compatible phone, so you never miss a call from home. Your cellular coverage for calls stays on your home carrier while HelloRoam handles data abroad.
212+ partner networks worldwide
HelloRoam eSIMs connect to 212+ carrier networks across 185+ countries. Your phone switches to the strongest available 4G/5G signal automatically. Network access is instant, with no manual carrier selection needed.
Data alerts before you run out
HelloRoam alerts you at 80% data usage so you never hit a surprise cap mid-trip. Top up instantly from the app without reinstalling your eSIM or visiting a store. Adding a fresh prepaid data package takes under a minute from your account dashboard.
Local 4G/5G speeds
Your Vietnam e-sim card connects to trusted local 4G/5G networks. HelloRoam picks the strongest available signal for navigation, streaming, and video calls. Internet abroad at local carrier speeds means maps load fast and video calls stay clear.
Regional and global eSIM plans
Heading to multiple countries? HelloRoam regional eSIM plans cover Europe, Asia, the Americas, and 185+ destinations in one purchase. Tourist eSIM or long-stay: choose fixed data or unlimited data plans. One account, no SIM swaps. Digital connectivity follows you across borders on a single prepaid plan.
Free hotspot and data sharing in Vietnam
Share your Vietnam eSIM data with a laptop or tablet using your phone's built-in hotspot. No extra fees, no setup required. Works on all eSIM compatible phones. One data plan covers your whole travel kit, making the most of every gigabyte you buy.
eSIM Prices for Vietnam
The best eSIM for Vietnam at every price point. Compare plans for every trip length.
| Number of days | Price |
|---|---|
| 1 day | $4.43 |
| 3 days | $12.63 |
| 7 days | $27.29 |
| 15 days | $53.16 |
| 22 days | $72.12 |
| 30 days | $90.37 |
Compare eSIM Providers for Vietnam
American travelers rate HelloRoam eSIM for its 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers for Vietnam on the things that matter most.
| 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 card is a digital SIM built directly into your phone. There is no plastic chip and no SIM tray to deal with. Scan a QR code to activate your e SIM in under 2 minutes on any eSIM compatible iPhone or Android. An eSIM for Vietnam works as a prepaid data plan with no airport SIM shop, no replacement SIM card, and no carrier contract. Follow the step-by-step setup guide to get connected before your flight. guide
Mobile Connectivity Guide for Vietnam
Vietnam has strong 4G coverage along the entire tourist trail from Hanoi in the north through Hoi An to Ho Chi Minh City in the south. Major carriers provide fast mobile internet in cities, beach resorts, and popular rural destinations.
Remote northern highlands and some island areas have weaker signal. With a HelloRoam eSIM, you connect on arrival at Noi Bai or Tan Son Nhat airports without any store visit. covers Vietnam's main visitor destinations.
- HelloRoam connects to Viettel Mobile 5G, Vinaphone 5G, MobiFone 5G in Vietnam
- 4G coverage from Hanoi to Ho Chi Minh City and all tourist stops
- Activate via QR code before departure
- No SIM registration needed
eSIM Travel Tips for Vietnam
Set up your eSIM before your flight to Vietnam
Install your HelloRoam eSIM profile at home before flying. At Hanoi or Ho Chi Minh City airport, skip the SIM kiosk queues. Enable data roaming and you are connected before you leave the arrivals hall.
Download offline maps for motorbike trips
If you are riding a motorbike in the northern highlands near Sapa or Ha Giang, signal can be unreliable in mountain passes. Download offline maps for the entire route before leaving the city. GPS navigation works without any signal.
Use hotel Wi-Fi to save data
Most Vietnamese hotels and hostels offer free Wi-Fi. Use it for streaming and large downloads. Save your HelloRoam data for navigating Old Towns, booking taxis, and exploring markets and beaches away from your hotel.
Keep your home SIM for international calls
On a dual-SIM phone, keep your home SIM active for international calls and texts. Use the HelloRoam eSIM for all data needs across Vietnam. Your home number stays reachable the entire trip.
Know the emergency numbers in Vietnam
In Vietnam, call 113 for police, 114 for fire, and 115 for ambulance. Save these before departure. Emergency calls work on any network regardless of your data balance.
Mobile Networks in Vietnam: What You Need to Know
Vietnam operates 4G LTE mobile networks through three main carriers: Viettel, VinaPhone, and MobiFone. Viettel has the widest rural and nationwide coverage, reaching remote areas of the Central Highlands and the far north. VinaPhone and MobiFone are strong in urban centers and tourist corridors. 4G is available throughout the main route from Hanoi to Ho Chi Minh City. Ha Long Bay, Hoi An, Da Nang, and Phu Quoc island all have reliable 4G signal. Your HelloRoam eSIM connects to the best available network automatically.
- Viettel Mobile
- 5G
- Vinaphone
- 5G
- MobiFone
- 5G
HelloRoam eSIM vs Local SIM vs Roaming in Vietnam
Here is an honest comparison of your connectivity options for a trip to Vietnam.
| Category | HelloRoam eSIM Recommended | Local SIM Card | Your Home Carrier Roaming |
|---|---|---|---|
| Typical cost | From $4.92 total | $2.50–$8.00 total | $10.00–$20.00/day |
| Details | Plans start at $3.49. Buy online, scan a QR code at home, and land in Hanoi or Ho Chi Minh City already connected. No passport registration at a carrier shop required. | Tourist SIMs from Viettel or Vinaphone are sold at Vietnamese airports. Require passport registration. Cheap but adds arrival delay. SIM must be registered with authorities. | Most carriers charge $10 to $15 per day for data in Vietnam. A 2-week trip adds $140 to $210 in roaming charges for data alone. |
Prices approximate as of . Actual savings vary.
Best Time to Visit Vietnam
Vietnam's long north-south geography means the best time varies by region. November to April is good for the south and central coast. May to October is better for the north including Hanoi and Sapa. The monsoon season brings heavy rain to different regions at different times. Mobile networks handle tourist season well in all main cities. Northern highland routes have variable signal year-round.
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 just northeast of Ho Chi Minh City, one of Vietnam's fastest-growing urban areas. HelloRoam keeps you connected.
Viettel and Vinaphone cover Bien Hoa with strong 4G. The city is just 30 km from Ho Chi Minh City, so coverage is essentially the same as the metropolis.
Can Tho
Can Tho is the capital of the Mekong Delta, a floating market city of sampan boats, rice paddies, and riverside cafe culture. HelloRoam keeps you connected on the delta.
Viettel covers Can Tho and the main Mekong Delta waterways with solid 4G. Remote canals have intermittent signal. Download offline maps before heading by boat.
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
Stay connected in Da Nang with a HelloRoam eSIM plan covering all of Vietnam.
Vinaphone and Viettel 5G cover Da Nang city and its airport. Activate before landing to get to the beach without delays.
Ha Noi
Ha Noi (Hanoi) is Vietnam's capital, a city where ancient pagodas sit beside French colonial buildings and the famous Old Quarter trades in everything. HelloRoam connects you.
Viettel and Mobifone cover Ha Noi with strong 4G. Activate before landing at Noi Bai International Airport for coverage from the terminal.
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 third-largest city and main northern port, gateway to Cat Ba Island and Ha Long Bay's stunning karst seascape. HelloRoam keeps you connected.
Viettel covers Hai Phong city and the ferry to Cat Ba Island with 4G. Ha Long Bay's open water stretches have limited signal, so download maps on the shore.
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
HelloRoam connects travelers in Hanoi with reliable mobile data across all of Vietnam.
Viettel 5G covers the Old Quarter and Noi Bai Airport. Activate before landing to navigate straight from the terminal.
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 former imperial capital on the Perfume River, with a UNESCO citadel, royal tombs, and the best local cuisine in Vietnam. HelloRoam keeps you connected.
Viettel and Vinaphone cover Hue and the royal tomb circuit with solid 4G. Activate before arriving at Hue Phu Bai Airport for coverage from landing.
Showing slide 1 of 11
Reviews
What Our Customers Say
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travelers 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
Updated
HelloRoam Vietnam eSIM Questions Answered
Does a SIM card Vietnam plan cover Ha Long Bay, Hoi An, and Phu Quoc?
An eSIM card Vietnam plan covers Ha Long Bay, Hoi An's old quarter, and Phu Quoc beaches on Viettel Mobile, Vinaphone, and MobiFone 5G networks from $3.49. HelloRoam sends your QR by email so you activate before landing at SGN or HAN. Pick from 1GB to 20GB or unlimited data. No contract and a 180-day refund guarantee.
How does an e SIM Vietnam compare to buying at Tan Son Nhat Airport?
Tan Son Nhat Airport SIM counters in Ho Chi Minh City charge tourist rates and close after evening flights. A Vietnam sim plan from HelloRoam connects to Viettel Mobile, Vinaphone, and MobiFone 5G networks across Vietnam from $3.49. Activate by QR before you fly and use data from Hanoi to the Mekong Delta. No contract, no roaming charges, and a 180-day refund guarantee.
Does a Vietnam eSIM work on Ha Long Bay cruise boats and in Hoi An ancient town?
HelloRoam plans connect to Viettel Mobile, Vinaphone, and MobiFone 5G networks on Ha Long Bay cruise decks, through Hoi An's lantern-lit walking streets, and along Da Nang's My Khe beach from $3.49. Signal holds on the bay and inside the old town pedestrian zone. No contract on any order.
Should visitors choose unlimited data for a six-week Vietnam north-to-south itinerary?
Unlimited plans suit a six-week route from Hanoi to Ho Chi Minh City because map navigation, ride-hailing apps, and photo uploads burn through fixed data fast. HelloRoam runs on Viettel Mobile, Vinaphone, and MobiFone 5G networks from $3.49 across the full 1,600 km north-to-south corridor. Activate by QR before your flight to HAN or SGN. No contract required.
What is the best eSIM for Vietnam?
HelloRoam is a top eSIM choice for Vietnam, with plans starting at $3.49 and 4G coverage on Viettel, Vinaphone, and Mobifone networks. Buy before departure, scan the QR code at home, and arrive in Hanoi or Ho Chi Minh City already connected without passport registration.
Does a HelloRoam eSIM work in Vietnam?
Yes, HelloRoam eSIM plans work throughout Vietnam on local 4G networks. Coverage is strong along the main tourist route from Hanoi to Ho Chi Minh City. Remote northern highlands have limited signal.
How do I activate an eSIM for Vietnam?
Buy your plan at helloroam.com, scan the QR code in your phone settings, and turn on data roaming when you land. Setup takes about five minutes and can be done at home before your flight.
How much does an eSIM for Vietnam cost?
HelloRoam eSIM plans for Vietnam start at $3.49. Multiple plan sizes are available for longer stays and higher data needs.
Is my phone compatible with an eSIM for Vietnam?
Most iPhones from the XS (2018) and many recent Android phones support eSIM. Check your settings for 'Add Plan' or 'Add eSIM' before buying.
Does HelloRoam eSIM include calls and texts in Vietnam?
HelloRoam eSIM plans for Vietnam are data-only. Use WhatsApp, Messenger, or Zalo for calls and messages. Emergency calls work on any available network.
How much data do I need for two weeks in Vietnam?
Two weeks in Vietnam with maps, social media, messaging, and booking apps uses about 5 to 8 GB. Use hotel Wi-Fi for streaming to keep usage lower. A 10 GB plan works well for most 2-week itineraries.
Does HelloRoam work on Phu Quoc island?
Yes, HelloRoam works on Phu Quoc. The island has 4G coverage in the main town and resort areas. Beaches on the north and far south of the island may have weaker signal. Download offline maps for the island before you arrive.
Can I use hotspot tethering with my eSIM in Vietnam?
Yes, HelloRoam eSIM plans for Vietnam support hotspot sharing. Share your 4G connection with a laptop or tablet while traveling from city to city by train or on day trips.
Is an eSIM cheaper than roaming in Vietnam?
Yes. Carrier roaming in Vietnam typically costs $3.49 per day. HelloRoam plans start at $3.49, making it much more affordable for any length of stay.
Can I keep my regular number with an eSIM in Vietnam?
Yes. On a dual-SIM phone, keep your home SIM for calls while HelloRoam handles your data in Vietnam. Your regular number stays active throughout the trip.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before purchasing.
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 4G/5G 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 the eSIM profile, defined in 3GPP TS 31.102 (EF_PNN). Your phone can read it to show the name of the network you are using.
- 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
