eSIM Vietnam from $3.49

HelloRoam is a global eSIM provider offering instant mobile data in 185+ countries. Buy prepaid travel eSIM plans with no extra fees, no contracts, and instant activation on any eSIM-compatible device.

An eSIM for Vietnam from HelloRoam starts at $3.49 per day. It connects to 204+ carrier networks across 185+ countries. Activate via QR code in under two minutes on any eSIM compatible phone. Keep your AT&T, T-Mobile, or Verizon number active on dual SIM.

194+
networks
5G
5G support
under 2 minutes
activation

UpdatedMay 2026

Your eSIM in Vietnam Plan with Nationwide Coverage

The cheapest eSIM for Vietnam starts from $3.49. Local 4G LTE and 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 Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 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 $4.92. 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 Vinaphone and 1+ 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

Trip changed? Don't worry, we've got you!

Plans can change anytime, and that's okay. With HelloRoam, you can easily request a refund for your eSIM within 180 days of purchase.

Learn more about our refund policy

HelloRoam 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 guarantee.

HelloRoam Vietnam eSIM vs AT&T, T-Mobile and Verizon roaming
Feature		Local provider	Limited data eSIM
180-day refund policy
24/7 live chat support
$0 activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium Vietnam carrier networks

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 Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 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 Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 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 Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 5G networks.

Read the full eSIM vs SIM card comparison

Why Travelers Choose an e SIM for Vietnam

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
Feature comparison		Airalo	Holafly	Nomad	Saily	Ubigi
180-day refund policy
24/7 live chat support
$0 activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium Vietnam carrier networks
Own branded carrier identity (SPN)

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 Vinaphone 5G, Viettel Mobile 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.

Vinaphone: 5G
Viettel Mobile: 5G

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.

Sean Mitchell

Check Device Compatibility Data Usage Calculator

Prices verified: May 31, 2026

HelloRoam Vietnam eSIM Questions Answered

An eSIM card Vietnam plan runs on Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 5G networks from $3.49 across Vietnam. HelloRoam delivers the QR code to your email within seconds and activation takes two minutes. No contract, no roaming charges, and a 180-day refund guarantee. Plans range from 1GB to 20GB or unlimited data.

A Vietnam travel eSIM plan connects to Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 5G networks across Vietnam. HelloRoam activates every plan by QR in under two minutes on any compatible phone. No contract, no roaming charges, and a 180-day refund guarantee. Scan once and stay online for your entire trip. A Vietnam SIM card from HelloRoam starts at $3.49 with no contract.

HelloRoam plans connect to Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 5G networks on Ha Long Bay cruise boats, across Hoi An's lantern-lit old quarter, and at Da Nang beaches from $3.49. Data stays active at sea and along old town walking streets. No contract on any order.

Six-week Vietnam travelers covering Hanoi, Hoi An, Ho Chi Minh City, and Phu Quoc choose unlimited HelloRoam plans on Vietnamobile, Vinaphone, Viettel Mobile, and 1 more 5G networks from $3.49 for map-heavy navigation across 1,600 km. Activate by QR before your flight to HAN or SGN. No contract required.

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.

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.

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.

HelloRoam eSIM plans for Vietnam start at $3.49. Multiple plan sizes are available for longer stays and higher data needs.

Most iPhones from the XS (2018) and many recent Android phones support eSIM. Check your settings for 'Add Plan' or 'Add eSIM' before buying.

HelloRoam eSIM plans for Vietnam are data-only. Use WhatsApp, Messenger, or Zalo for calls and messages. Emergency calls work on any available network.

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.

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.

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.

Yes. Carrier roaming in Vietnam typically costs $3.49 to $3.49 per day. HelloRoam plans start at $3.49, making it much more affordable for any length of stay.

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): HelloRoam holds a registered Public Network Name, the official carrier identity filed with telecommunications authorities. Telecom regulators recognize HelloRoam as a licensed service provider, not a white-label reseller.
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. Every purchase includes a 180-day money-back guarantee.

Future Syncs Limited124 City Road, London, EC1V 2NX, UK+44 203 916 6249help@helloroam.comReg. No. 15950168

Number of days	Price
1 day	$4.25
3 days	$12.23
7 days	$28.53
15 days	$59.14
22 days	$82.84
30 days	$108.98

Category	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 $4.92. 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.

Number of days	Price
1 day	$4.25
3 days	$12.23
7 days	$28.53
15 days	$59.14
22 days	$82.84
30 days	$108.98

Category	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 $4.92. 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.

eSIM Vietnam

Your eSIM in Vietnam Plan with Nationwide Coverage

eSIM Vietnam

Your eSIM in Vietnam Plan with Nationwide Coverage

Vietnam eSIM with fast 5G coverage

Trip changed? Don't worry, we've got you!

HelloRoam Vietnam eSIM vs AT&T, T-Mobile and Verizon roaming

Vietnam SIM card vs eSIM: A Practical Traveler's Guide

Why Travelers Choose an e SIM for Vietnam