How to Use eSIM in Vietnam: The Complete Guide for Travelers and Expats

How to use eSIM in Vietnam is one of the top questions among international travelers and expats planning to visit or stay in this beautiful country. With the rapid growth of eSIM technology, staying connected in Vietnam has never been easier or more convenient. Instead of hunting for a SIM shop at the airport or worrying about losing your SIM card, you can now activate mobile data, calls, and even a local phone number right on your device—no plastic, no paperwork, and no hassle. In this comprehensive guide, we’ll walk you step-by-step through how to use eSIM in Vietnam, from checking compatibility to activating and making the most of your plan.

What is eSIM and Why Use It in Vietnam?

An eSIM (“embedded SIM”) is a digital SIM profile that’s built into modern smartphones, tablets, and even some laptops. Unlike traditional plastic SIM cards, an eSIM lets you download and activate a local mobile plan just by scanning a QR code. This is a huge game-changer for anyone visiting Vietnam: no more swapping tiny cards, no risk of losing your home SIM, and full flexibility to keep your number for WhatsApp, banking, and more.

Instant Activation: Buy online, scan the QR code, and connect instantly—no physical SIM required.
Dual SIM Power: Use both your home number and local Vietnam data plan at the same time.
Eco-Friendly: 100% digital, no plastic waste or packaging.
Works Everywhere: Use your eSIM throughout Vietnam’s big cities, beaches, and even rural regions.

How to Use eSIM in Vietnam: Step-by-Step

Check Device Compatibility: Make sure your phone or tablet supports eSIM. Most iPhones from XR/XS and above, Google Pixel 3+, Samsung S20+, Oppo Find X3, and many more are eSIM-ready. See the full list here.
Choose a Trusted Provider: Top options for Vietnam include GoVnSIM, Airalo, Holafly, and Mobifone’s official channels.
Pick Your Plan: Select data-only, unlimited, or combo packages (with voice and Vietnamese phone number) depending on your travel needs.
Purchase Online: Buy your plan securely via card, PayPal, or local payment options. Provide your email for instant QR code delivery.
Scan the QR Code: Open your device’s “Mobile Data” or “SIM Manager,” select “Add eSIM” or “Add Mobile Plan,” then scan the QR code you received via email.
Activate and Select for Data: Your device will download and install the eSIM profile. Set it as your main data line and you’re online—ready to explore Vietnam!

eSIM vs. Physical SIM Card in Vietnam: Quick Comparison

Feature	eSIM in Vietnam	Physical SIM Card
Activation	Online, instant QR code	Buy at shop or airport
Setup	Digital (no card swap)	Manual SIM card swap
Dual SIM	Yes (eSIM + physical SIM)	No, unless dual-SIM phone
Replacement	QR can be resent	Need new card if lost
Eco-Friendly	No plastic, no waste	Plastic SIM, packaging

Top Reasons to Use eSIM in Vietnam

• Save time: Activate before arrival, or in minutes after landing.
• Stay flexible: Choose, change, or top up your plan online, anytime.
• No paperwork: Avoid queues and ID checks at the airport.
• Coverage: Viettel, Vinaphone, and Mobifone eSIM plans cover all of Vietnam.
• Works for tourists, business visitors, and expats—short or long term.

Interested in the best eSIM plans for tourists? Read our guide on Viettel eSIM 30-Day Plan or see Vietnam eSIM with Phone Number for local call options.

Contact & Support

Website: govnsim.com
WhatsApp: +84 98 307 49 15
LINE ID: anyaxiaoying

Common Questions: How to Use eSIM in Vietnam

Is eSIM available everywhere in Vietnam?

Yes! Most major Vietnamese mobile networks—like Viettel, Vinaphone, and Mobifone—now offer eSIM options for both locals and foreigners. Whether you’re traveling to Hanoi, Ho Chi Minh City, Da Nang, or even rural areas, eSIM plans offer strong 4G/LTE coverage and stable connections.

Can I get a Vietnamese phone number with eSIM?

Absolutely. Many plans from providers like GoVnSIM include a real Vietnamese mobile number. This is helpful for calling local businesses, booking Grab rides, or registering for Vietnamese apps like Zalo and food delivery.

Can I use eSIM and my home SIM at the same time?

Yes! One of the best features when learning how to use eSIM in Vietnam is dual SIM capability. Keep your original SIM for SMS, banking, or WhatsApp, while using your Vietnamese eSIM for local data and calls.

What if I change phones or delete my eSIM?

Most reliable providers can resend your QR code if you lose or switch devices. Always keep your activation email for backup! If you run into problems, customer support (like GoVnSIM’s 24/7 WhatsApp or LINE) can help you reactivate quickly.

How do I top up or extend my eSIM plan in Vietnam?

Topping up is usually as simple as logging into your provider’s website and selecting a new data or combo package. Payment is online, and you rarely need to scan a new QR code—just extend your current profile.

Case Study: How a Traveler Used eSIM in Vietnam Without Hassle

Linda, a business traveler from Canada, was anxious about finding reliable data for her two-week trip to Vietnam. After reading a guide on how to use eSIM in Vietnam, she purchased a 30-day Viettel eSIM from GoVnSIM. The QR code arrived instantly. Upon landing in Ho Chi Minh City, Linda scanned the code, set the eSIM as her main data line, and was online within minutes. She made local calls, ordered Grab, used maps in Hanoi, and kept her Canadian SIM active for banking SMS—all with zero headaches. When she needed more data, she topped up in two clicks. Linda’s advice: “Don’t bother with plastic SIMs—use eSIM in Vietnam for a totally stress-free trip!”