3.1Editor score
In this guide
An Esim Card for Vietnam can provide a convenient way to stay online during a trip without relying on a permanent international plan. The most useful options combine generous mobile data, quick activation, broad device compatibility, and clear instructions for connecting in Vietnam.
The products in this guide were compared using the details supplied for each plan, including validity, high-speed allowances, reduced-speed data, hotspot support, physical or digital delivery, regional coverage, activation methods, and device requirements. The list includes Vietnam-only plans and broader Asian travel plans.
Each review explains who the option is most likely to suit, from short city-break travelers to visitors undertaking longer journeys. It also highlights important limitations, particularly data-only service, reduced speeds, regional locks, and physical SIM requirements. Product availability and prices can change over time.
Top 3 Picks for Best Esim Card for Vietnam
5.0Editor score
4.8Editor score
Top 10 Best Esim Card for Vietnam in 2026 Compared
This side-by-side comparison organizes the ten plans by their most consequential travel features, including coverage area, service duration, high-speed data, reduced-speed treatment, and connection format.
1. Asia SIM Card 10GB – Broad Asian Coverage
This prepaid data-only SIM covers Vietnam and 14 other Asian destinations, making it a practical choice for travelers who will move between countries. It has a 3.7 rating and provides 10GB of high-speed data during a 30-day period, beginning when the traveler activates it in a covered destination.
Pros
- Broad regional coverage
- Generous 10GB allowance
- Simple website activation
- Three SIM sizes included
- Round-the-clock customer support
Cons
- Website activation required
- Google Pixel excluded
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The card uses top mobile networks and automatically connects with an appropriate available network. It arrives in standard, micro, and nano formats, reducing compatibility concerns for many phones. Activation takes place through the ENC Mobile website, and the supplied information says the card must be activated within 90 days of receipt.
The main compromise is that this is a physical SIM rather than an instantly delivered eSIM, and the activation process requires website access. It is also specifically unsuitable for Google Pixel phones. The 30-day window is also more restrictive than the 365-day option later in the list.
This is best for an Asia itinerary covering several listed countries, especially when one prepaid data allowance needs to work across the whole trip. Travelers staying exclusively in Vietnam can find simpler options, but those spending time in multiple Asian destinations may value the regional reach more than Vietnam-specific features.
Useful for Multi-Country Asian Travel
The plan covers mainland China, Hong Kong, Macao, Japan, South Korea, Singapore, Thailand, Malaysia, Indonesia, the Philippines, Taiwan, Cambodia, Australia, New Zealand, and Vietnam. That range makes it relevant to trips that combine Vietnam with other parts of Asia.
Simple Physical SIM Setup
A three-in-one physical card can be adapted to standard, micro, or nano slots. The traveler only needs to follow the website instructions, select the relevant destination, and place the card in an unlocked phone.
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2. Happy 5G Vietnam 15 Days – Balanced Short-Trip Plan
This Vietnam-specific travel SIM is designed for a 15-day visit and has a 4.5 rating. It includes 8GB of 5G high-speed data with no daily limit, followed by unlimited data at a reduced speed of 128kbps until the plan period ends.
Pros
- Strong 4.5 rating
- No daily data limit
- No registration required
- Hotspot support offered
- Popular apps supported
Cons
- Data-only without phone number
- No recharge or top-up
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The 3-in-1 Viettel card supports standard, micro, and nano devices and requires no registration. Travelers can insert it into an unlocked phone, enable roaming and local data, and allow one or two minutes for the network connection. Hotspot sharing is supported, although compatibility is not guaranteed for every device.
Because the service is data-only, it does not provide a regular phone number. Voice calls and standard texts are therefore unavailable, although messaging through applications such as WhatsApp, Line, and WeChat can work. The plan cannot be recharged or topped up, and TikTok is listed as unsupported.
This is a strong fit for a short Vietnam trip where the traveler wants predictable high-speed access for maps, navigation, social media, and everyday browsing. It is less suitable for someone who requires a Vietnamese number, conventional calling, a TikTok connection, or the ability to extend the plan after purchase.
No Daily Data Reset
The allowance is distributed across the full 15-day period rather than resetting each day. That structure is useful for travelers whose data use varies, although heavy streaming and hotspot use can reach the high-speed threshold more quickly.
Easy Data-Only Connection
The card uses Viettel and supports popular iPhone and Android models. The installation process is short, but the phone must be unlocked and configured to use roaming and local mobile data.
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3. Happy 5G Vietnam 30 Days – More Data for Longer Stays
This 30-day Vietnam data SIM is the longer-duration counterpart to the 15-day Happy 5G option. It has a 3.3 rating and includes 15GB of 5G high-speed data without a daily limit, followed by unlimited service at 128kbps.
Pros
- Longer service validity
- 15GB high-speed allowance
- No daily data limit
- No registration required
- Hotspot support offered
Cons
- Moderate 3.3 rating
- Data-only without phone number
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It offers the same convenient data-only design, including a 3-in-1 Viettel card, no registration requirement, and support for unlocked iPhone and Android devices. Popular applications and websites are available, with TikTok identified as an exception. Hotspot sharing is supported, though the seller does not guarantee operation with every device.
The 30-day term is the primary benefit over shorter plans, while the doubled high-speed allowance is useful for heavier navigation, photo uploads, video viewing, and work-related browsing. As with the other Happy 5G cards, there is no ordinary phone number, no top-up option, and no traditional calling or text service.
Travelers staying in Vietnam for about a month should find this plan more relevant than the 15-day version. It is especially attractive when avoiding a second purchase is important, although those with lighter data needs may find the shorter plan sufficient.
Longer Usage Window
The service lasts 30 days from activation, reducing the need to replace or renew a physical card during an extended holiday. Activation occurs when the card is inserted in Vietnam.
Higher-Speed Allowance
The 15GB high-speed allocation provides more room for intensive navigation and media use. Once consumed, the connection remains available for data at a much lower 128kbps.
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4. 5G Vietnam 15 Days – Travel-Friendly Toolkit
This 15-day Vietnam SIM has a 4.0 rating and includes 8GB of high-speed 5G data, followed by unlimited data at 128kbps. It is positioned for tourists and business travelers who need a straightforward data connection with no registration process.
Pros
- Includes travel guide
- SIM ejector pin included
- No registration required
- Hotspot sharing supported
- Three SIM sizes supplied
Cons
- ChatGPT explicitly unsupported
- No recharge or top-up
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The package is more complete than a bare SIM because it includes a user travel guide and SIM-card ejector pin. Its tri-cut physical design fits standard, micro, and nano slots, while hotspot sharing is allowed. The card works with unlocked iPhone and Android devices after network selection and data settings are configured.
One notable restriction is that both TikTok and ChatGPT are listed as unsupported. The plan is data-only, cannot be topped up, and provides no conventional phone number. Although a VPN is not required, users should understand that application access limitations are separate from the reduced-speed allowance.
This is a good option for a short trip that combines sightseeing with ordinary work communication, especially when a travel guide and ejector tool add convenience. It may not suit travelers who depend on ChatGPT, need a local number, or require a flexible recharge option.
Useful Included Extras
The physical package includes a travel guide and ejector pin, making it easier to install the card without searching for a separate tool. These extras are modest but useful for travelers arriving without travel accessories.
Hotspot for Light Sharing
The plan permits hotspot sharing, which can support a tablet, laptop, or another connected device. Device compatibility varies, so travelers should confirm that their intended hotspot equipment works with the SIM.
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5. Asia eSIM 11 Countries – Best Digital Multi-Country Option
This digital eSIM provides 15-day coverage across 11 Asian destinations, including Vietnam, and carries a 4.8 rating. Its structure is particularly appealing for travelers who want one regional connection without carrying a removable card.
Pros
- Highest listed rating
- No physical SIM delivery
- Eleven regional destinations
- Automatic operator switching
- Hotspot sharing supported
Cons
- QR code may take hours
- Requires compatible eSIM device
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The plan allows 3GB of high-speed data each day and unlimited data at 1Mbps for the remainder of that day. It automatically switches among supported operators to improve coverage, with manual switching also available. Hotspot sharing is supported, allowing the connection to serve multiple devices.
No physical SIM is shipped. Instead, the QR code is generated within 24 hours of purchase, usually sooner, and is retrieved through the InstaSIM from TSIM app or the stated website. Compatibility should be checked before departure, and installation requires an eSIM-capable handset. Validity starts at the first supported network connection.
This is the most polished option for a multi-country Asian trip that includes Vietnam, particularly for travelers with compatible phones who value automatic network selection and digital delivery. It is less suitable for someone needing a physical card, calls, texts, or an immediate QR code without advance planning.
Daily High-Speed Structure
Rather than providing one fixed high-speed pool for the entire trip, the plan offers 3GB at higher speed per day. After that threshold, unlimited data continues at 1Mbps, giving users a clear service level throughout the day.
Convenient Regional Switching
Automatic operator switching can help maintain a stronger connection as the traveler moves between covered countries. Manual switching provides additional control when needed, and Vietnam is included among the eleven supported destinations.
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6. Happy 5G Vietnam 15 Days – Lowest-Cost Vietnam Option
This 15-day Vietnam travel SIM is the least expensive option in the group and carries a 3.3 rating in the supplied dataset, though its listed rating here is 3.1. It includes 8GB of high-speed data without a daily limit and unlimited data at 128kbps afterward.
Pros
- Lowest listed cost
- No registration required
- No daily data limit
- Hotspot support offered
- Popular apps supported
Cons
- Lowest listed rating
- Data-only without phone number
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The core plan closely matches the other Happy 5G Vietnam offering. It uses a 3-in-1 Viettel card, requires no registration, works with unlocked iPhone and Android devices, and supports popular applications other than TikTok. Hotspot sharing is allowed, although not every device is guaranteed to work with it.
Its weaknesses reflect the budget position. The reduced speed after 8GB is only 128kbps, there is no phone number, and the card cannot be recharged. The 3.1 rating also gives travelers less visible customer feedback than the better-rated alternatives, so reading current buyer comments before purchasing is advisable.
This plan is best for a short, inexpensive Vietnam trip in which the main requirements are navigation, messaging, social media, and occasional browsing. Travelers who frequently stream video, rely on hotspot performance, or need more consistent speeds should consider spending more on a stronger-rated option.
Economical 15-Day Access
The plan offers the same basic allocation and reduced-speed structure as the higher-priced 15-day Happy 5G listing. It is a sensible way to control the cost of connectivity for a modest itinerary.
Easy for Basic Travel Use
The lack of registration makes setup direct, while broad application support is useful for maps and messaging. A data-only design keeps the SIM focused on internet access rather than local calling.
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7. 5G Vietnam 30 Days – Best Overall Vietnam SIM
This 30-day Vietnam SIM has a perfect 5.0 rating and combines a generous service period with 15GB of high-speed 5G data. After the high-speed allowance is used, unlimited data continues at 128kbps through the end of the plan.
Pros
- Perfect 5.0 rating
- Generous 30-day validity
- 15GB high-speed allowance
- Travel toolkit included
- Hotspot sharing allowed
Cons
- ChatGPT explicitly unsupported
- No recharge or top-up
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Its physical package contains a tri-cut SIM, user travel guide, and ejector pin. No registration is required, the card supports standard, micro, and nano slots, and hotspot sharing is permitted. It works with unlocked iPhone and Android devices after travelers enable the appropriate data settings.
The product is data-only and includes no local phone number, traditional calls, or standard text service. TikTok and ChatGPT are expressly excluded, and the prepaid plan cannot be recharged. These restrictions should be considered before buying, especially for users whose daily routine depends on those services.
This is the strongest all-around pick for a month-long Vietnam visit because it balances a 5.0 rating, 15GB of high-speed data, a 30-day term, and practical physical accessories. It is a particularly good fit for business travelers and tourists who want generous connectivity and hotspot support without buying another plan midway through the trip.
A Full-Month Connection
A 30-day service window accommodates nearly the entire month following activation. Combined with 15GB of faster data, it gives travelers more flexibility than short-term cards that must be replaced during an extended itinerary.
Practical Business Travel Features
Hotspot sharing can extend the connection to a laptop or tablet for work communication. The included travel guide and ejector pin improve the physical setup experience, although users should still confirm their device is unlocked.
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8. Travel Data SIM 20 Days – Flexible Regional Data Plan
This 20-day regional travel SIM offers 20GB of high-speed data, the largest explicit high-speed allocation among the physical SIM options listed. It is intended for trips involving Vietnam and 11 other Asian destinations, including China, Hong Kong, Japan, Korea, Macao, Malaysia, Taiwan, Thailand, Cambodia, the Philippines, and Indonesia.
Pros
- Largest high-speed allocation
- Twelve regional destinations
- Automatic arrival connection
- Renewal support included
- Three SIM sizes offered
Cons
- No visible customer rating
- Physical SIM requires compatibility
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The plan includes unlimited basic data after the high-speed threshold and automatically connects upon arrival in a covered area. A three-in-one card provides mini, micro, and nano formats. It works with most unlocked iPhone and Android devices and is data-only, supporting application-based communication through services such as WhatsApp, Messenger, WeChat, and LINE.
The supplied information does not show a customer rating, so there is no rating basis for comparing its feedback with the rated options. The physical SIM format still requires a compatible device slot, and a traveler without a removable SIM needs a phone that supports conversion or an external adapter. Data service is the primary function.
This option suits visitors who expect to consume more data than the 15GB plans provide or who are touring several Asian countries during a medium-length trip. The renewal support also makes it more flexible for travelers whose plans may change, though the lack of a visible rating warrants checking recent customer feedback.
Substantial High-Speed Pool
The 20GB allocation offers considerable room for high-resolution photos, video, navigation, and frequent app use before service moves to the unlimited basic-data stage. It is the most generous fixed high-speed figure in this comparison.
Regional Scope and Renewal
Coverage extends across a wide group of Asian destinations, and the plan can be extended for longer trips. That combination makes it useful when a journey is broader than Vietnam alone or when the travel dates remain uncertain.
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9. 13 Asian Countries 365 Days – Longest Regional Validity
This SIM stands apart with a 365-day validity period and a 5.0 rating. It includes 10GB of high-speed data for use across 13 Asian destinations, including Vietnam, China, Taiwan, Macao, Australia, Indonesia, Japan, New Zealand, the Philippines, Singapore, Malaysia, South Korea, and Thailand.
Pros
- Perfect 5.0 rating
- One-year service period
- Thirteen regional destinations
- Hotspot tethering supported
- No routine registration
Cons
- Registration excluded in Taiwan
- Reduced speed only 512kbps
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After the 10GB is consumed, data continues at 512kbps. Hotspot tethering is available, allowing the allowance to be shared with a smartphone or tablet. The card is designed for plug-and-go use without routine registration, although Taiwan is specifically excluded from that registration exemption.
The long validity makes this a different kind of travel product. It can cover a series of trips or provide a spare regional data option instead of requiring a new SIM for every journey. The trade-off is that the high-speed pool is smaller than several medium-term plans, while reduced-speed service is faster than the 128kbps tier used by many competing products.
This is an appealing choice for frequent regional travelers, expatriates, or anyone who wants one card to remain useful over a full year. Those making a single short trip should compare the unnecessary longevity against the simpler 15-day and 30-day Vietnam-only alternatives.
Ready for Repeated Travel
A 365-day term can cover several journeys rather than a single itinerary. The plan is especially practical for travelers based in a region who may visit Vietnam and neighboring destinations repeatedly.
More Useful Reduced Speed
The 512kbps tier offers more headroom than the 128kbps reduced service found on several short-term Vietnam SIMs. It remains slower than high-speed data, but it is better suited to lightweight browsing and messaging.
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10. 5G Asia 12 Countries – Broad Coverage With Transit Credit
This 30-day physical SIM covers 12 Asian destinations and includes Vietnam, China, Hong Kong, Macao, Taiwan, Singapore, Malaysia, Thailand, Japan, South Korea, Indonesia, and the Philippines. It also provides an extra 1GB of data for Dubai, which may be useful during a transit connection.
Pros
- Twelve regional destinations
- 15GB high-speed allowance
- Extra 1GB Dubai credit
- Hotspot sharing allowed
- Included physical toolkit
Cons
- No visible customer rating
- ChatGPT explicitly unsupported
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The Vietnam and regional plan includes 15GB of high-speed 5G data, followed by unlimited data at 128kbps. A tri-cut card fits standard, micro, and nano slots, while the package includes a travel guide and ejector pin. Hotspot sharing is allowed, but compatibility with every device is not guaranteed.
The supplied data does not include a customer rating for this product, so it cannot be compared on rating strength with the top-rated options. It is also data-only, offers no phone number, cannot be recharged, and excludes TikTok and ChatGPT. The card is intended for unlocked iPhone and Android devices.
This is best for a 30-day Asian itinerary that needs substantial regional coverage and a generous high-speed allowance. The Dubai transit credit adds a useful extra, but travelers focused solely on Vietnam may find a dedicated plan simpler, while users dependent on ChatGPT should choose another option.
Twelve-Country Regional Access
The destination list covers major tourism and business hubs across Asia. Automatic network availability and a single regional allowance simplify travel across borders, subject to the card being active and the device unlocked.
Useful Transit Allowance
The included 1GB for Dubai is a distinct bonus for itineraries that pass through the region. It does not replace the main 15GB allocation and should be treated as a separate travel credit.
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Buying Guide – How to Choose the Best Esim Card for Vietnam
The right Vietnam data SIM depends on trip length, data habits, device type, and the regions visited. Comparing these factors before buying can prevent disappointment caused by short validity, unsupported applications, or an incompatible physical format.
Match the Plan to Trip Length
Choose a duration that leaves a margin for delayed flights or schedule changes.
Understand High-Speed Limits
Prioritize enough high-speed data for your heaviest travel days.
Confirm Regional Coverage
Buy broad coverage only when the itinerary genuinely spans regions.
Check Device and SIM Format
Confirm both phone unlock status and SIM format before ordering.
Evaluate Hotspot Needs
Use hotspot for light sharing and test it early after arrival.
Look for App and Service Restrictions
Check platform exclusions before paying for a data-only plan.
Review Activation Requirements
Allow time for delivery, QR retrieval, and installation.
Assess Support and Extras
Prefer accessible support before committing to a plan.
How to Use and Care for Your Esim Card
Begin by checking that your phone is unlocked and compatible with the selected format. Insert a physical card into the recommended SIM slot, power on the phone, and wait one or two minutes for the network to register. For an eSIM, request the QR code in advance, install it using the provided process, and complete any required network selection.
When the card is active, turn on mobile data and the data-roaming or local-data setting. Keep Wi-Fi off briefly while the device connects, and select an appropriate 5G, 4G LTE, 3G, or 2G network mode if the phone does not connect automatically. For dual-SIM devices, SIM slot 1 is recommended by the sellers of several physical products.
Treat the card as a temporary travel component rather than something to bend, scratch, or remove unnecessarily. Keep the physical SIM safe in its packaging until it is needed, and use the included ejector pin for compatible devices. Check the activation deadline, data usage, and service validity during the trip, especially when relying on hotspot sharing or reduced-speed service.
Frequently Asked Questions
Do these Vietnam SIM cards include a local phone number?
Most of the listed physical travel SIMs are data-only and do not include a local phone number. They may support calls and messaging through internet-based applications such as WhatsApp, Line, WeChat, and Messenger. Travelers who need conventional Vietnamese calling or standard SMS should verify that requirement before purchasing one of these plans.
What does unlimited data mean when high-speed data is limited?
Unlimited data means the connection continues after the stated high-speed allowance is used, but service is restricted to a reduced speed. Several Vietnam products reduce speed to 128kbps, while the 365-day regional option lists 512kbps. The Asia eSIM provides a different structure: 3GB at high speed each day, followed by unlimited data at 1Mbps for the rest of that day.
Can I use a Vietnam travel SIM in other countries?
It depends on the product. The Happy 5G and 5G Vietnam cards are presented as Vietnam-focused options, while the ENC Mobile card covers 15 destinations and the regional products cover lists ranging from 11 to 13 countries. Always check whether every stop on your itinerary, including transit locations, appears in the product's supported destinations.
Is a physical SIM or an eSIM better for Vietnam?
A physical SIM is often more flexible for older phones and travelers who want to insert a card immediately, while an eSIM avoids waiting for a physical delivery and supports automatic network switching. An eSIM requires a compatible phone, a QR code, and an installation process. The best format depends on your device, departure timing, and comfort with digital setup.
Will these SIM cards work in my phone?
The physical products support common standard, micro, and nano sizes, but the phone must be unlocked and compatible with removable SIMs. The eSIM requires a compatible eSIM-enabled device. Carrier-locked, SIM-locked, and region-locked phones are not supported by the listed physical plans, and Google Pixel is specifically excluded for the ENC Mobile product.
Can I use hotspot sharing with a Vietnam travel SIM?
Hotspot sharing is allowed or supported by most of the listed plans, including the 30-day 5G Vietnam option. Nevertheless, the product information says compatibility is not guaranteed with every device. A tablet or laptop may work well, but a phone with carrier locks or restrictive firmware settings may not, so confirm compatibility before relying on it for work.
Why can a travel SIM support WhatsApp but not regular calls?
These products provide mobile internet data rather than a conventional local voice or SMS service. Applications that operate over an internet connection can therefore work when supported, while traditional phone calls and standard texts cannot. The excluded-app list also varies: some products exclude TikTok, and the 5G Vietnam toolkit products additionally exclude ChatGPT.
When should I activate an Esim Card for Vietnam?
Physical plans generally begin when they are activated or connected in Vietnam, while the 365-day option must be activated before its expiration date. The digital Asia eSIM can be installed before travel because validity starts at the first connection to a supported network. Activation windows and delivery times should be checked before departure.
Final Thoughts on Choosing the Best Esim Card for Vietnam
The 5G Vietnam 30 Days plan is the strongest general recommendation because it combines a 5.0 rating, a 15GB high-speed allowance, a full month of service, hotspot support, and useful physical accessories. The Happy 5G Vietnam 15 Days plan is the value-focused choice, while the Asia eSIM 11 Countries is the most refined multi-country digital option.
Prioritize validity, high-speed data, application restrictions, and phone compatibility before choosing. A longer plan is not automatically better for a brief trip, and unlimited data can become slow after the high-speed threshold. Travelers who need a local number or conventional calls should look beyond the data-only products covered in this guide.
Finally, check the current product listing, activation requirements, destination list, and price before purchasing. Plan availability and seller information can change, and current customer feedback may add detail beyond the ratings recorded in this October 2026 comparison.