Best SIM Cards & eSIMs for Vietnam 2026: Compare

Quick answer: If you want the simplest eSIM with local Viettel connectivity, Kovitel is our top pick for Vietnam in 2026. Its Vietnam eSIM uses the Viettel 5G network, offers 5GB of high-speed data per day, supports hotspot use and can be installed by QR code before you arrive.

If you prefer booking your travel products through a large travel platform, Trip.com is another strong option and currently offers several Vietnam eSIM products, including Viettel-based plans. For travelers who prefer a physical SIM, Viettel remains the safest choice for nationwide coverage, while Vinaphone and Mobifone are useful alternatives in cities and major tourist areas.

This guide compares the main SIM and eSIM options for Vietnam, explains the difference between local and roaming eSIMs, and shows which option makes the most sense for short trips, long stays, heavy data use and travel around places such as Phu Quoc, Ha Long Bay and the mountain regions.

Best SIM Cards and eSIMs for Vietnam in 2026

Provider	Type	Best for	Why choose it?
Kovitel	eSIM	Best overall	Viettel 5G, 5GB/day, hotspot and simple QR activation
Trip.com	eSIM	Convenient travel booking	Large selection and easy online booking
Airalo	eSIM	Flexible international eSIMs	Large selection and established app
Saily	eSIM	Simple app-based setup	Easy installation and data management
Holafly	eSIM	Heavy data users	Strong focus on unlimited-data plans
Nomad	eSIM	Flexible data packages	Wide range of plans
Ubigi	eSIM	Short trips and international travelers	Simple global eSIM service
Viettel	Physical SIM	Best local coverage	Excellent nationwide network
Vinaphone	Physical SIM	City travelers	Good coverage in major destinations
Mobifone	Physical SIM	Budget travelers	Good option for cities and tourist areas

1. Kovitel — Our Top eSIM for Vietnam

Best for: travelers who want a local Viettel connection without visiting a SIM shop.

If we had to choose one eSIM for most tourists visiting Vietnam in 2026, Kovitel would be our first choice.

The main reason is simple: this is not a generic roaming eSIM that connects through an international partner network. Kovitel’s Vietnam product is built around the Viettel 5G network, giving travelers access to one of Vietnam’s major local mobile networks.

The current Vietnam eSIM offers 5GB of high-speed data per day, with plans available for 7, 15 or 30 days. Hotspot use is supported, which is useful if you need to connect a laptop or another phone while traveling.

The setup is also straightforward. You purchase the eSIM online, receive a QR code by email and install it on your compatible phone. According to Kovitel, the plan begins when the eSIM connects to the Viettel network in Vietnam rather than simply when the QR code is delivered.

That makes Kovitel particularly convenient if you want to land in Vietnam already prepared for Grab, Google Maps, WhatsApp, Zalo, hotel bookings and everything else you need online.

Why choose Kovitel?

• Viettel 5G network for local connectivity
• 5GB of high-speed data per day
• 7, 15 and 30-day plan options
• Hotspot supported
• QR-code delivery by email
• No physical SIM swap
• Useful for travelers visiting cities, islands and rural areas
• 10% discount for Vietnam With Me readers with code Vietnamwithme10

Choose Kovitel if: you want a straightforward Vietnam eSIM with local Viettel connectivity, enough daily data for normal travel and the convenience of arranging your connection before you arrive.

Check Kovitel Vietnam eSIM →

2. Trip.com — Convenient eSIMs for Travelers

Best for: travelers who already use Trip.com for hotels, flights, tours or attraction tickets.

Trip.com is worth considering because you can buy your Vietnam eSIM through the same travel platform you may already be using for the rest of your trip.

Current Vietnam listings include Viettel-based 5G eSIM products with daily data packages and different validity periods. This makes Trip.com particularly convenient if you want to compare several options rather than commit to one provider before traveling.

Trip.com is also useful if you are already using the platform for hotels or activities. Instead of creating another account with a separate eSIM company, you can keep more of your trip bookings in one place.

For example, if you are planning a trip to Phu Quoc, you can arrange accommodation, activities and connectivity through the same travel ecosystem.

Compare Vietnam eSIM options on Trip.com →

Choose Trip.com if: you value convenience and already use Trip.com for other parts of your Vietnam trip.

3. Airalo — A Flexible International eSIM Option

Best for: travelers who want an established international eSIM platform with several Vietnam data packages.

Airalo is one of the better-known international eSIM providers and offers Vietnam-specific packages as well as regional and global eSIMs.

One advantage is flexibility. Depending on the current Vietnam lineup, you can choose smaller data packages for light users or larger packages for longer trips. Airalo also allows users to manage their eSIM through its app.

However, travelers should pay attention to the network listed for the specific package. Different Airalo Vietnam products can use different local networks, so do not assume that every Airalo plan uses Viettel.

For example, Airalo currently lists Vietnam products using networks including VNPT/Vinaphone, while other specific products may use Viettel. Check the network shown on the product page before purchasing.

Choose Airalo if: you want flexibility, an established international eSIM platform and the ability to manage your plan through an app.

4. Saily — Simple eSIM Setup

Best for: travelers who want a straightforward app-based eSIM experience.

Saily is designed around the same basic idea as other travel eSIM services: purchase your data package before departure, install the eSIM and activate it when you arrive in Vietnam.

The main attraction is convenience. There is no need to visit a Vietnamese mobile shop, wait for registration or physically remove your existing SIM card.

Saily can therefore make sense for travelers who only need mobile data for Google Maps, Grab, messaging, social media and occasional video calls.

As with any international eSIM, check the network and package conditions shown for Vietnam before buying. Network access and data allowances can vary between products.

Choose Saily if: you want a clean app-based eSIM experience and do not specifically need a direct local Viettel eSIM.

5. Holafly — Best for Heavy Data Users

Best for: travelers who use a lot of mobile data and prefer an unlimited-data style plan.

Holafly takes a different approach from providers that sell a fixed number of gigabytes. Its Vietnam offering has traditionally focused heavily on unlimited-data packages, making it attractive to travelers who do not want to think about their daily data allowance.

This can be useful if you spend a lot of time watching video, uploading content, using navigation or working remotely from your phone.

The downside is that unlimited plans are usually more expensive than small fixed-data packages. If you mostly use Wi-Fi at your hotel and only need mobile data for Grab and Google Maps, paying for unlimited data may not be necessary.

Choose Holafly if: you would rather pay more for convenience than monitor how much data you are consuming.

6. Nomad — Flexible Data Packages

Best for: travelers who want several package sizes and validity options.

Nomad is another established travel eSIM provider with Vietnam plans. Its main strength is flexibility: travelers can choose packages based on trip length and expected data consumption rather than buying a single fixed-size option.

Nomad can be a good middle ground if you do not need unlimited data but also do not want to buy a local SIM card after arrival.

Before purchasing, check which Vietnamese network the specific package uses and whether the plan includes hotspot functionality if you need to connect another device.

Choose Nomad if: you want a flexible international eSIM and prefer to select a data allowance based on your actual trip.

7. Ubigi — Another Solid International Option

Best for: short trips and travelers who already use Ubigi internationally.

Ubigi offers travel eSIM plans in many destinations, including Vietnam. It is particularly useful for travelers who already have an Ubigi account and want to keep their mobile connectivity with the same provider.

The main advantage is convenience rather than a unique Vietnam-specific feature. As always, check the current network, data allowance and validity period before purchasing because these details can change.

Choose Ubigi if: you already use Ubigi or want a familiar international eSIM platform for your trip.

Physical SIM Cards in Vietnam

Not everyone needs an eSIM.

If your phone does not support eSIM technology, or you want a Vietnamese mobile number, buying a physical SIM can still be the better option.

Viettel

Viettel is generally the safest choice if coverage is your priority. Its network extends across Vietnam and is particularly useful if your itinerary includes rural areas, mountain destinations or islands.

For a trip that includes places such as Phu Quoc, Ha Giang, Sapa or Ha Long Bay, network coverage can matter more than saving a few dollars on the SIM itself.

Vinaphone

Vinaphone is a strong alternative, particularly for travelers spending most of their time in major cities and established tourist destinations.

It is worth considering if the price or package is better than the Viettel option available when you arrive.

Mobifone

Mobifone is another established Vietnamese operator and can work well for travelers who mainly stay in urban areas.

For a city-focused itinerary, there may be little practical difference between the major networks. For remote travel, however, Viettel is usually the safer bet.

Should You Buy a SIM at the Airport?

Airport SIM cards are convenient, but convenience is what you are paying for.

You can usually find SIM sellers or operator counters after arriving at Vietnam’s major international airports. This means you can get connected before leaving the terminal.

The problem is that airport packages can be more expensive than buying from an official operator store in the city.

If you arrive late at night, have a connecting flight, or simply want your phone working immediately, the airport option is perfectly reasonable.

If you are staying in Vietnam for several weeks and want the best local price, it can make more sense to buy a SIM from an official Viettel, Vinaphone or Mobifone store after reaching the city.

If you use an eSIM, of course, you can skip this completely.

eSIM vs Physical SIM in Vietnam

Feature	eSIM	Physical SIM
Buy before arrival	Yes	Usually no
Physical SIM swap	No	Yes
Keep your home SIM	Usually yes	Usually no
Easy setup	Excellent	Good
Vietnamese phone number	Usually no	Often available
Best for	Most tourists	Long stays and local numbers

How Much Mobile Data Do You Actually Need?

The answer depends on how you use your phone.

Your usage	Recommended data
Maps, Grab and messaging	1–3GB for a short trip
Normal travel and social media	3–5GB
Heavy social media and video	5GB/day or more
Remote work and frequent video calls	Large or unlimited plan
Hotspot for laptop/tablet	Large daily allowance

Remember that hotel Wi-Fi, cafés and restaurants can reduce your mobile-data consumption significantly.

If you mostly need your phone for Grab, Google Maps, translation, messaging and occasional searches, you probably do not need an unlimited plan.

If you upload large videos every day, work remotely or use your phone as a hotspot, a larger daily allowance makes much more sense.

Which Network Is Best for Phu Quoc?

If you are visiting Phu Quoc, network coverage deserves particular attention.

Viettel is generally the safest choice if you plan to move around the island rather than staying inside one resort area. This is especially useful when you are using Grab, Google Maps or navigation while traveling between beaches and attractions.

Mobile data is also useful for trips to the southern part of the island, including Sunset Town and the Hon Thom area.

If Phu Quoc is part of your itinerary, you may also want to read my Phu Quoc for First-Timers guide, Phu Quoc Airport Transfer guide and Best Beaches in Phu Quoc guide.

How to Install an eSIM Before Your Vietnam Trip

1. Check that your phone supports eSIM.
2. Make sure your phone is unlocked and not restricted to another carrier.
3. Purchase your chosen Vietnam eSIM.
4. Receive the QR code or installation instructions.
5. Install the eSIM while you still have a reliable internet connection.
6. Keep your main SIM active if you want to receive messages on your normal number.
7. Set the new eSIM as your mobile-data line when you arrive in Vietnam.

Do not delete your primary SIM before traveling if you still need access to your normal phone number.

Important: eSIMs Are Not All the Same

This is one of the most important things to understand before buying.

A travel eSIM can be either a local-network eSIM or a roaming eSIM.

A local-network eSIM connects to a Vietnamese operator directly. A roaming eSIM connects through an international roaming arrangement and may use one or more local networks.

Neither approach is automatically bad. The important thing is understanding what you are buying.

If your priority is maximum local network access, a Viettel-based product such as Kovitel is particularly interesting because the provider specifically markets its Vietnam eSIM as direct Viettel connectivity rather than a generic roaming product.

What About Calls and SMS?

Most tourist eSIMs are designed primarily for data.

That means you normally use WhatsApp, Messenger, Telegram, Zalo or other internet-based services instead of making traditional mobile calls.

If you need a Vietnamese phone number for local calls or SMS verification, a physical Vietnamese SIM may be the better option.

Before purchasing an eSIM, check whether voice calls and SMS are included. Do not assume that every Vietnam eSIM provides a local phone number.

Our Recommendation for Different Types of Travelers

If you…	We recommend
Want the best overall eSIM	Kovitel
Want a Viettel-based eSIM	Kovitel or a Viettel product on Trip.com
Already book hotels and activities on Trip.com	Trip.com
Want an established international eSIM app	Airalo
Want a simple app-based eSIM	Saily
Use a lot of mobile data	Holafly
Want flexible data packages	Nomad
Already use an international Ubigi eSIM	Ubigi
Need a Vietnamese phone number	Physical local SIM
Travel to remote areas	Viettel

Why We Put Kovitel First

There are plenty of good eSIM providers for Vietnam, so putting one at number one should have a reason behind it.

For this guide, our top choice is based on the combination of local Viettel connectivity, daily high-speed data, hotspot support, straightforward installation and the ability to arrange everything before arriving in Vietnam.

Kovitel also offers a straightforward way to arrange a Vietnam eSIM before arrival, with Viettel connectivity, 5GB of high-speed data per day and hotspot support.

Get the Kovitel Vietnam eSIM →

Final Verdict

For most tourists visiting Vietnam in 2026, an eSIM is now the easiest way to stay connected. You can arrange everything before departure, avoid airport SIM queues and keep your regular SIM in the phone.

Kovitel is our top pick if you specifically want a Vietnam eSIM using the Viettel network, with 5GB of high-speed data per day, hotspot support and simple QR-code activation.

Trip.com is a strong alternative if you already use the platform for hotels, flights, tours and activities and prefer to keep your travel purchases together.

Airalo, Saily, Holafly, Nomad and Ubigi remain useful alternatives depending on your preferred data allowance, price and app experience.

And if you need a Vietnamese phone number or plan to stay for a long time, a physical SIM from Viettel, Vinaphone or Mobifone can still be the better choice.

The important thing is not simply choosing the cheapest SIM. Choose the network and plan that match your itinerary. If you are traveling around Vietnam, especially to islands or remote areas, reliable coverage is usually worth more than saving a few dollars.

Where to Go Next

Once your mobile connection is sorted, the rest of your Vietnam trip becomes much easier to plan.

If you are visiting Phu Quoc, start with my Phu Quoc for First-Timers guide and then compare the Best Beaches in Phu Quoc.

For major attractions, see my VinWonders & Vinpearl Safari guide, Hon Thom Island guide and Sunset Town guide.

If you are still choosing where to stay, my Best Hotels in Phu Quoc guide covers the island’s main accommodation options.

Frequently Asked Questions

Should I buy a SIM card at the Vietnam airport?

Airport SIM sellers and operator counters are available at Vietnam’s major international airports and get you connected immediately, but the packages usually cost more than buying from an official Viettel, Vinaphone, or Mobifone store in the city. It’s a reasonable choice if you land late at night, have a connecting flight, or just want your phone working right away. If you’re staying for several weeks and want the best local price, buying in the city is cheaper — or skip the SIM question entirely with an eSIM.

Is an eSIM or a physical SIM better for Vietnam?

An eSIM works best for most tourists: you can buy and activate it before you arrive, keep your home SIM active for calls, and set it up easily, though it usually won’t give you a Vietnamese phone number. A physical SIM is better for longer stays or if you need a local phone number, since you can buy one from an official operator store after arrival.

How much mobile data do I need for a Vietnam trip?

For maps, Grab, and messaging on a short trip, 1-3GB is enough. For normal travel use with social media, plan for 3-5GB. Heavy social media and video use pushes that to 5GB per day or more, and remote work or hotspot use for a laptop needs a large or unlimited plan. Hotel Wi-Fi and cafés will reduce how much mobile data you actually burn through.

Which network is best for Phu Quoc?

Viettel is generally the safest choice on Phu Quoc if you plan to move around the island rather than staying inside one resort, including for navigation between beaches and attractions and trips to the southern part of the island like Sunset Town and Hon Thom.

Disclosure: Some links in this article are affiliate links. If you purchase through them, Vietnam With Me may receive a commission at no additional cost to you. Our recommendations are based on the features and suitability of each option for travelers.