Vietnam eSIM — Travel Data Plan
1GB / 7 days
$3.90
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Vietnam eSIM — Travel Data Plan
$3.90
Hanoi, Da Nang and Ho Chi Minh City, connected end to end.
- Networks: Viettel Mobile 5G, Vinaphone 5G, MobiFone 4G
- 4G/LTE and 5G where the local network supports it
- Hotspot and tethering supported
- Validity starts on first connection in Vietnam, not at purchase
- Data only — no phone number, no calls, no SMS
- Install now, travel later — usable for 180 days after purchase
Requires an eSIM-compatible, carrier-unlocked device. Check the Device Compatibility page before buying, and see the Fair Usage Policy for how the allowance is measured.
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Delivered in minutes
QR code by email, right after payment
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180-day refund
Full refund if you never install it
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Keep your number
Your own SIM stays in the phone
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Data only
No calls or SMS — apps work as usual
Vietnam travel data eSIM
What is a Vietnam eSIM?
A Vietnam eSIM gives travelers a ready‑to‑use data‑only connection the moment they step onto the streets of Hanoi, Da Nang, Ho Chi Minh City or any other destination. It eliminates the need to hunt for a local SIM, letting you stay online for maps, translation, ride‑hailing and booking services while you explore the country's rich history and vibrant culture.
When activated in Vietnam the eSIM links to Viettel Mobile 5G, Vinaphone 5G or MobiFone 4G, depending on which network your device selects. Data is drawn from the plan you chose, and you can use it for everyday online tasks such as navigation, messaging apps and checking travel itineraries throughout your stay.
Operators on this planViettel Mobile 5G, Vinaphone 5G, MobiFone 4G
No physical SIM card100% digital, delivered as a QR code
4G/LTE and 5GWhere the local network supports it
Keep your home numberData only: calls and texts stay on your own SIM
Fixed price, no surprisesPaid up front, no meter running
Local networks
Which networks you connect to in Vietnam
Connecting through Viettel Mobile 5G, Vinaphone 5G or MobiFone 4G lets you access the local operator networks across Vietnam. The actual reach of the connection depends on the specific operator’s infrastructure in the area you are visiting, so you’ll experience service wherever those networks are present.
Viettel Mobile 5GVinaphone 5GMobiFone 4G
5 plans are available for Vietnam, from $3.90 up to $24.90. Every plan is data only, delivered by QR code, and starts counting when you connect on arrival.
HanoiDa NangHo Chi Minh CityHueOne plan for all of Vietnam, starting on first connection.
Good to know
Staying connected in Vietnam: practical tips
Exploring the Mekong DeltaUse mobile data for river ferry schedules, local market listings and translation apps to navigate villages and board boats safely.
Traveling by train between Hanoi and Ho Chi Minh CityAccess real‑time train timetables, seat reservation platforms and onboard Wi‑Fi portals to keep your itinerary on track.
Riding motorbikes in Ho Chi Minh CityRide‑hailing and traffic‑update apps rely on data, helping you find routes, avoid congestion and pay for rides without cash.
Four simple steps to use CometSIM
From checking your phone to landing online — the whole thing takes about two minutes, and you do most of it before you fly.
Step 1
Compatibility
Make sure your phone works with eSIM. It takes ten seconds — just dial a code and check.
Check compatibility
Step 2
Destination
Choose your country and the data plan that fits your trip. Prices are in USD, no surprises.
See all destinations
Step 3
Install your eSIM
Scan the QR code we email you. Install it at home on Wi-Fi — ready in a couple of minutes.
Setup guide
Step 4
Land & connect
Switch it on when you arrive. Your data starts on arrival, and your own number stays exactly where it is.
You’re online
Complete your trip
Add VPN
Add CometSIM VPN to your trip
Stay safe on hotel and airport Wi-Fi and reach home content. Your eSIM carries the data, the VPN protects it.
Questions people actually ask
If yours is not here, write to us — we answer within 24 hours.
Which operators does the Vietnam eSIM use and what does that mean for a traveller?
The eSIM connects to Viettel Mobile 5G, Vinaphone 5G or MobiFone 4G. This gives you access to the same networks that local residents use, so you can browse, message and use apps just as they do.
Can the Vietnam eSIM be used in a neighbouring country, such as Laos?
No, the plan is limited to Vietnam only. Regional eSIM options are available for travelers who need connectivity across multiple countries.
Which plan size suits a trip that includes both Hanoi and Da Nang?
As a rough guide, the 5 GB or 10 GB 30‑day plans often cover two major cities with typical daily usage of navigation, social media and occasional streaming.
Will I lose my own phone number?
No. Your physical SIM stays in the phone and keeps your number for calls and WhatsApp. The eSIM only carries data, so both work side by side.
When does my plan start counting down?
When the eSIM first connects to a network at your destination — not when you buy it. So you can install it days before you fly without losing any time.
Is my phone compatible?
Most phones from 2018 onwards are: iPhone XS and later, Google Pixel 3 and later, Samsung Galaxy S20 and later. Your phone also has to be carrier-unlocked. Dial *#06# — if an EID appears, you have eSIM. Full list on our Device Compatibility page.
How fast will I get my QR code?
Usually within a couple of minutes of payment, by email. If it has not arrived, check spam first, then write to us and we will resend it immediately.
Can I use hotspot or tethering?
Yes, on every plan we sell. Share the connection with a laptop, a tablet or the rest of your group.
What if I change my mind?
If you have not installed the eSIM, you get a full refund within 180 days. Once a profile is activated and data has been used it cannot be refunded — the allowance is consumed from the network. Full detail in our Refund Policy.
Do you sell plans for groups?
Yes. For Umrah and Hajj groups, student trips and tour operators we deliver the QR codes as a single batch before departure, at group rates. Email us with your group size and destination.