Find the best-fit eSIM for Vietnam. Simple filters, clear comparisons, faster decisions.
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A Vietnam eSIM is a digital SIM profile installed via QR code that connects a compatible phone to Viettel, Vinaphone, or MobiFone immediately after landing at Noi Bai International Airport in Hanoi, Tan Son Nhat International Airport in Ho Chi Minh City, or Da Nang International Airport, with no physical card swap, no passport queue at a carrier kiosk, and no interruption to a home SIM that remains active for calls and SMS back home.
Citizens of 38 countries currently enter Vietnam visa-free for up to 45 days (expanded August 2025), and all other nationalities can obtain a 90-day e-visa online before departure. This page ranks the best eSIM for Vietnam across nine plans, compares Vietnam eSIM plans by coverage, price per GB, network partner, and validity, and gives route-specific guidance so the eSIM for travel to Vietnam that reaches Ha Giang performs just as well as the Vietnam eSIM card that covers Hoi An, Phu Quoc, and the Mekong Delta.
eSIM (embedded SIM): A digital SIM profile installed on a compatible phone via QR code or app, requiring no physical card. In Vietnam, it connects to Viettel, Vinaphone (VNPT), or MobiFone depending on the plan you choose.
Viettel is the network partner to prioritize when a Vietnam itinerary goes beyond Hanoi, Da Nang, and Ho Chi Minh City. It is the only network with documented reliable coverage on the Ha Giang Loop, at Meo Vac and Dong Van, along the Ho Chi Minh Highway through rural Quang Binh, and on the northern and eastern roads of Phu Quoc where infrastructure is thinner. Vinaphone and MobiFone are both strong in Hanoi, Ho Chi Minh City, Da Nang, Hue, Hoi An, and major beach resorts. Coverage becomes more variable beyond those hubs, particularly on mountain roads, ferry crossings to outer islands, and in the central highlands near Pleiku and Buon Ma Thuot. The provider chooses the network partner, so travelers should confirm which Vietnamese operator backs the eSIM plan before purchasing.
Our methodology evaluates Vietnam eSIM plans across six criteria: effective price per GB, network coverage partner (Viettel, Vinaphone, or MobiFone), geographic coverage reliability from major cities to mountain routes, plan validity, hotspot support, and activation ease for international travelers.
Price per GB
Median price per GB across eligible provider plans, weighted toward common traveler data sizes.
Network coverage
Population and geographic coverage across major cities, tourist regions, transit routes, and rural areas.
Network partner
Activation speed
QR-code-to-data time. Most providers under 2 minutes; some require app install.
Hotspot support
Tethering allowed on all plan tiers without extra fees or fair-use throttling.
Customer support
24/7 chat availability, response time, and refund track record on canceled trips.
All plans in the Vietnam ranking come fromAiralo, Saily, Ubigi, Nomad, Yesim, Alosim, Maya Mobile, and Redteago. Each provider routes through Viettel, Vinaphone, or MobiFone depending on the plan.
Vietnam rewards travelers who plan coverage before arrival. The country runs 1,650 km from the Red River Delta in the north to the Mekong Delta in the south, and the route from Hanoi to Ho Chi Minh City passes mountain roads near Sapa, limestone valleys in Ninh Binh, the Hai Van Pass between Da Nang and Hue, and long stretches of coastal highway where signal strength depends entirely on which network the eSIM connects through.
The best overall Vietnam eSIM ranks by six criteria: price per GB, the host network partner (Viettel holds the strongest rural and mountain coverage, Vinaphone leads in raw 5G speed in Hanoi and Ho Chi Minh City, MobiFone is competitive in major cities), activation flow, plan validity, hotspot support, and customer support quality. The live ranking table compares Airalo, Saily, Ubigi, Nomad, Yesim, Alosim, Maya Mobile, and Redteago side by side.
Best for: first-time visitors, north-to-south travelers, couples, families, and anyone whose itinerary includes both urban stops and rural or mountain detours
The strongest overall Vietnam eSIM balances network partner quality, data allowance, plan validity, and hotspot access. For a classic 10-day itinerary covering Hanoi, Ha Long Bay, Hoi An, and Ho Chi Minh City, regular tourist use including Grab bookings, Google Maps navigation between neighborhoods, WhatsApp calls, and occasional social uploads typically lands between 700 MB and 1.5 GB per day, putting a 10-15 GB plan in the right range for most travelers. The one variable that matters most for a multi-region trip is the host network. An eSIM routing through Viettel will maintain a usable 4G signal on the Ha Giang Loop, in the valleys around Sapa, and along the ferry routes between mainland Ha Long Bay and the outer islands. Use the live table above to compare plans, then check the network partner column before deciding.
For travelers comparing specific plan sizes, the value section below covers what a budget-conscious approach looks like for Vietnam.
Best value in Vietnam eSIM plans means the lowest effective cost per GB on a network that actually reaches your destinations. Vietnam is one of the most affordable countries in Southeast Asia for mobile data, and eSIM prices reflect that. A well-priced plan should not require compromise on network partner or data size for a country where mobile data drives every practical task from the moment of arrival.
Budget travelers and backpackers heading through Hanoi Old Quarter, along the Banana Pancake Trail from Hue to Hoi An, or spending time on Phu Quoc or Con Dao typically use mobile data for Grab, ShopeeFood, Google Maps, Google Translate camera mode for menus and street signs, and messaging apps. Light travelers who spend most evenings in hostel or hotel WiFi often stay under 500 MB per day during city periods. Use the live table to find the plan with the lowest price per GB that still lists Viettel or Vinaphone as the host network.
Best for: budget travelers, backpackers, solo travelers on short city breaks, and visitors who rely on guesthouse WiFi in the evenings.
The best value Vietnam eSIM should still carry a reputable network partner, enough validity to cover the trip without expiry anxiety, and clear hotspot support if the traveler needs to tether a laptop in a hostel. The risk with ultra-small plans in Vietnam is specific to the itinerary: a 3 GB plan that seems adequate for Ho Chi Minh City can run short on a long bus ride from Hue to Da Nang or a full day navigating Hoi An‘s lanes and cycling paths without cached maps. Travelers whose route includes overnight sleeper trains from Hanoi to Sapa or bus journeys through Phong Nha should size up from the minimum.
Short-trip options are detailed in the next section.
A 3-5 day Vietnam trip rarely needs a large data plan, but it does need the right network. The most common short itineraries concentrate in one or two cities: Hanoi plus a Ha Long Bay cruise, Ho Chi Minh City plus the Mekong Delta or Cu Chi Tunnels, or a long weekend split between Da Nang beach and Hoi An Ancient Town. Each of these routes has reliable 4G and expanding 5G coverage, but the mix of dense city use, boat-based cruising near Ha Long Bay, and narrow-alley navigation in Hoi An means the eSIM should be on a proven network, not the cheapest available carrier.
Best for: layover travelers, weekend visitors, conference trips, one or two-city itineraries, and travelers combining a city stop with a single day trip.
A 3-5 GB plan covers a light to moderate short Vietnam trip: Grab rides between Hoan Kiem Lake and Ho Chi Minh Mausoleum in Hanoi, Google Maps navigation in Ho Chi Minh City‘s District 1 and the backpacker strip on Pham Ngu Lao Street, and WhatsApp calls home. Travelers taking Ha Long Bay cruises should know that signal drops to weak-or-nothing once the boat moves beyond Bai Chay pier and between the karsts, so daily data use on cruise days is typically low. 5G is available in central Hanoi, central Ho Chi Minh City, and Da Nang, so a 5G-capable eSIM on Viettel or Vinaphone delivers noticeably faster speeds in these cities. The long-stay section below covers options for travelers spending two weeks or more.
A 2-4 week Vietnam trip typically moves through three to five distinct regions: the north with Hanoi, Ha Long Bay, Ninh Binh, and potentially Sapa or Ha Giang; the center with Hue, Hoi An, Da Nang, and Phong Nha; and the south with Ho Chi Minh City, the Mekong Delta, and the beach islands of Phu Quoc or Con Dao. Staying connected across all of these regions on a single eSIM plan requires both adequate data and a network partner with consistent rural reach.
Digital nomads and slow travelers spending a month or longer in Ho Chi Minh City or Da Nang (both have well-established coworking communities) will lean on mobile data for daily Grab rides, ShopeeFood delivery, video calls, and cloud work when cafe WiFi is slow. Da Nang‘s coworking scene along An Thuong Beach and My Khe Beach is backed by strong Viettel and Vinaphone coverage and average mobile download speeds above 90 Mbps on 4G.
Best for: slow travelers, digital nomads in Da Nang or Ho Chi Minh City, students, visiting-family travelers, and anyone doing a full north-to-south itinerary over multiple weeks.
A regular long-stay traveler in Vietnam using mobile data for navigation, messaging, and occasional uploads typically uses 20-30 GB per month. A remote worker tethering a laptop, making Zoom calls from a coworking space backup connection, or uploading video content should budget 50 GB or more. Hotspot support matters more on a long stay than on a short trip, so check the plan’s tethering policy in the live table before buying. The trade-off between a single large plan and buying sequential smaller plans depends on whether the itinerary is confirmed in advance. A confirmed 3-week north-to-south route justifies a single 20-30 GB plan; flexible slow travel is sometimes better served by topping up smaller plans as needed. Unlimited plan options for Vietnam are covered in the next section.
Confirm hotspot terms before buying. The live table above reflects current long-validity options across the provider list.
Vietnam unlimited eSIM plans suit a specific traveler type: remote workers making daily video calls, families sharing a phone hotspot across multiple devices, content creators uploading footage from Ha Long Bay or Sapa, and streamers who do not want to track daily usage. For the average tourist spending 10 days between Hanoi and Ho Chi Minh City, an unlimited plan is generally unnecessary and often costs more than a sized plan would for actual usage.
The context where unlimited plans earn their cost in Vietnam is the long overland journey. A sleeper bus from Hanoi to Sapa runs 5-6 hours; a train from Da Nang to Ho Chi Minh City takes 17-19 hours. Overnight train rides on the Reunification Express between Hanoi and Ho Chi Minh City take 30-35 hours. Travelers who stream, work, or run hotspot on these journeys will chew through fixed data plans. Similarly, guesthouse WiFi in smaller towns like Phong Nha, Dong Hoi, or island accommodation on Con Dao can be unreliable, making a mobile data backup more valuable.
Best for: remote workers on long-haul train or bus journeys, families sharing one hotspot across devices, content creators uploading from scenic locations, and Zoom-heavy digital nomads.
Fair-use policies apply to every Vietnamese unlimited eSIM plan. After a defined high-speed threshold (which varies by provider and plan), speeds typically throttle to 128-512 Kbps. This is enough for messaging and basic map loading but not for video calls or streaming. Check the plan’s fair-use limit in the live table before purchasing. Video calls typically use 500 MB to 1.5 GB per hour; HD video streaming can consume 1-3 GB per hour; a full remote work day over hotspot may exceed 5 GB. Unlimited plans offered by Airalo, Nomad, Saily, or Ubigi for Vietnam will specify their fair-use terms on the plan detail page.
Coverage in the next section explains where speed experience varies across Vietnam’s regions.
Vietnam eSIM coverage runs on three networks: Viettel, Vinaphone, and MobiFone. Viettel holds the clearest nationwide advantage, with an Opensignal Coverage Experience score of 8.4 out of 10 (September 2025), compared to 5.3 for Vinaphone and 4.3 for MobiFone. That gap is most pronounced outside major cities: Viettel maintains stable 4G in the mountain passes above Sapa, through the valleys of the Ha Giang Loop, along the road to Phong Nha caves, across the Central Highlands around Dalat, and in the scattered river towns of the Mekong Delta. MobiFone and Vinaphone perform comparably to Viettel in Hanoi, Ho Chi Minh City, and Da Nang, but their signals fade faster once a traveler leaves the city edge.
5G is now commercially available nationwide. Viettel operates over 30,000 5G base stations covering 90% of outdoor areas and 70% of indoor spaces, including all 34 provincial capitals, all major airports, and most tourist sites. Vinaphone ranked second globally for 5G speed in the Ookla Speedtest Awards for H1 2025. MobiFone launched 5G commercially in June 2025 in major urban centres.
For travelers staying in Hanoi, Ho Chi Minh City, or Da Nang, 5G speeds are real and fast. For travelers heading to Hoi An, Hue, or Nha Trang, 4G LTE is the dependable baseline. For routes into the northern mountains or the Mekong Delta interior, the Viettel network partner matters more than the technology generation.
| Network | Coverage Level | 4G LTE Coverage | 5G Population | Urban Reliability | Rural Reliability |
|---|---|---|---|---|---|
| Viettel | MOST COVERAGE | ~99% | 90% (outdoor) | 95%+ | 75-85% |
| Vinaphone | FASTEST 5G | ~95% | 55-60% (target 2026) | 93%+ | 60-70% |
| MobiFone | BEST URBAN EXPERIENCE | ~95% | Expanding (launched Jun 2025) | 98.4% | 55-65% |
Yes, with no meaningful caveats for the three main cities. Hanoi, Ho Chi Minh City, and Da Nang all have 4G and 5G coverage from all three major operators, and average mobile download speeds in these cities are among the fastest in Southeast Asia. In Hanoi, the primary use cases for mobile data are navigating the alleys of the Old Quarter, booking Grab bikes to Ho Chi Minh Mausoleum or Van Mieu (Temple of Literature), and loading Zalo contact details from guesthouses. In Ho Chi Minh City, mobile data drives Grab cars from Tan Son Nhat to Ben Thanh Market, ShopeeFood delivery, and navigation between District 1, District 3, and the Bui Vien Street backpacker area. In Da Nang, data is essential for the 29 km Grab transfer to Hoi An, navigating My Khe Beach, and booking cable car tickets to Ba Na Hills online.
The city speed benchmarks below draw from SpeedGEO (April 2025 to March 2026) and VNNIC i-Speed (January 2026) for the most current available data
Data
Best network
Vinaphone
Median speed
Latency
58 ms avg
Data
Vinaphone
63 ms avg
Data
Viettel / Vinaphone
50 ms avg
Data
Viettel
60 ms avg
Beyond the four cities in the table, the Hue city centre, Nha Trang seafront, and Phu Quoc town all have solid 4G from Viettel and Vinaphone. 5G is strongest in Hanoi and Ho Chi Minh City inner districts, and Da Nang leads all Vietnamese cities in measured 5G download speed. The 4G baseline is dependable across all tourist-accessible cities and coastal towns.
Coverage caveats to note: the Hanoi Metro underground stations have limited signal on lower platforms; Ha Long Bay cruise areas between karst islands have weak or no signal beyond the Bai Chay pier; the limestone caves in Phong Nha have zero signal inside; the mountain roads of the Ha Giang Loop have intermittent Viettel 4G in the valleys but dead zones at certain passes; and stadium and festival venues in all cities can experience congestion on event days.
Four questions come up regularly, and all of them have straightforward answers.
Does a Vietnam eSIM require biometric registration? Vietnamese law requires passport registration for all SIM cards, including eSIMs sold on arrival. eSIM plans purchased from international providers before departure (Airalo, Saily, Nomad, and others) are registered through the provider’s own system and do not require an in-country queue. This is one of the practical advantages of buying before departure: the biometric step happens during account setup on the provider’s app, not at a kiosk counter in Noi Bai or Tan Son Nhat.
What if the eSIM plan routes through MobiFone instead of Viettel? For Hanoi, Ho Chi Minh City, and Da Nang, the network partner makes minimal practical difference. For anyone heading to Ha Giang, Sapa, Phong Nha, or rural routes, a Viettel-backed plan is noticeably more reliable. The plan detail page should list the Vietnam host network before checkout.
Can a dual-SIM phone run a home number and a Vietnam eSIM at the same time? Yes. Most modern phones support simultaneous active eSIM and physical SIM operation. The home SIM stays active for incoming calls and SMS, while the Vietnam eSIM handles all mobile data. This is the standard use case and covered in more detail in the dual-SIM section below.
What about unlimited plan throttling in Vietnam? Vietnamese telecom law enforces fair-use policies on all unlimited plans. After a defined high-speed data threshold (which varies by provider), speeds reduce to 128-512 Kbps, sufficient for basic WhatsApp and maps but not for video calls or streaming. This applies to local Vietnamese prepaid SIMs and international eSIM plans equally. The unlimited section above explains what this means in practice for different traveler types
Activation steps are consistent across all compatible phones. Install the eSIM profile before departure by scanning the provider’s QR code in Settings. Leave the Vietnam eSIM set as the data line but disabled until landing. Toggle it on after the plane lands. The profile connects to the host network automatically.
Pick a plan, pay, get a QR code by email within ~60 seconds.
iPhone: Settings β Cellular. Android: Network β SIMs β Add eSIM.
Point your phone at the QR on a second screen, or paste the activation code.
Name it “eSIM” so it’s obvious in your line picker.
Toggle the eSIM line on as you land. Data works on the jet bridge.
Vietnam’s eSIM support follows standard GSMA eSIM profiles. All three operators (Viettel, Vinaphone, MobiFone) support standard eSIM. Device compatibility depends on the handset, not the destination.
XS, XR, 11, 12, 13, 14, 15, 16 & SE (2nd gen+)
Yes, and the dual-SIM setup is the standard approach for most travelers to Vietnam. A phone with both a physical SIM slot and an eSIM (or with dual eSIM support) can run a home number alongside a Vietnam eSIM simultaneously. The home SIM remains active for incoming calls and SMS, which matters for bank verification codes, OTP messages, and staying reachable on a home number. The Vietnam eSIM handles all mobile data, which keeps costs low.
There are a few Vietnam-specific reasons this setup has practical value. Grab, the dominant ride-hailing app in Hanoi and Ho Chi Minh City, sends driver arrival notifications and trip confirmations via the app, which needs mobile data. Zalo, the local messaging platform used by guesthouses, tour operators, and drivers across Vietnam, requires a verified phone number for full functionality. If the Zalo account was registered to a home number, keeping that number active via a physical SIM allows uninterrupted Zalo access while the eSIM handles data. Travelers who have set up Grab on a home number before arrival similarly benefit from keeping the home SIM active.
The one situation where dual-SIM creates friction is if the phone assigns the physical SIM as the default data line after eSIM installation. Check the phone’s SIM settings after installing the Vietnam eSIM profile and set the eSIM as the preferred data source before landing at Noi Bai, Tan Son Nhat, or Da Nang.
AΒ 7 -14 days Vietnam itinerary combining Hanoi, a Ha Long Bay cruise, Hoi An, and Ho Chi Minh City uses mobile data very differently depending on the day. City days with Grab rides, Google Maps between Hoan Kiem Lake and Temple of Literature, and evening ShopeeFood orders can consume 1-1.5 GB. Cruise days on Ha Long Bay use almost nothing once the boat leaves signal range. Plan for an average of 700 MB to 1.2 GB per day across the full trip and add a buffer of 20-30% for the city-heavy days.
Activity | Avg rate | Intensity | 7β14 day total |
|---|---|---|---|
Google Maps + navigation | 50 MB/hr | ~3 GB 5 hr/day Γ 7 days | |
Instagram, TikTok, social | 700 MB/hr | ~10 GB 1 hr/day Γ 14 days | |
YouTube / Netflix (480p) | 550 MB/hr | ~8 GB 1 hr/day Γ 14 days | |
Work calls + email | 200 MB/hr | ~4 GB 2 hr/day Γ 10 days | |
iMessage, WhatsApp, light | 10 MB/hr | <1 GB Background use |
Buy before you fly. Vietnam is an easy destination to prepare for digitally, and the advantages of a pre-installed Vietnam eSIM are immediate from the moment the plane touches down. Noi Bai is 30 km from Hanoi, Tan Son Nhat is 8 km from Ho Chi Minh City centre, and Da Nang International Airport is 5 km from the city. Every one of those transfers requires Grab or a pre-arranged car, and Grab requires mobile data to book a fair-priced ride and confirm pickup.
