Vietnam network coverage: 5G in the cities, LTE past them
Vietnam has 2 mobile networks: Vinaphone (5G), Viettel Mobile (5G). All 5 providers we rank route through these carriers. Our editorial pick routes through Viettel, which delivers the strongest urban and rural coverage combination across Vinaphone and Viettel Mobile based on coverage analysis. Airalo's catalogue starts at $1.37/GB with 5G access. Runners-up HelloRoam and Holafly connect via Viettel Mobile, scoring 4.9/5 and 4.3/5 on coverage.
Provider routing covers 2 mobile networks in Vietnam: Viettel, Vinaphone, and Mobifone. Viettel connects through the strongest combination of urban coverage and rural reach among those options. Viettel sits at the top of the published carrier list for travel eSIM traffic in Vietnam. 5G is live in major cities: Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities.
Coverage notes for Vietnam, from the carriers' published maps: Viettel publishes 4G along the Hai Van Pass route and across the Sapa mountain area. Vinaphone's map thins out in remote Ha Giang. passport required; real-name registration mandatory since 2018. Vietnam welcomes 17.6M (2024) tourists annually. peak travel runs in Oct-Apr.
A travel eSIM in Vietnam attaches to Viettel on 5G. All 5 ranked providers ride that same host network rather than one of their own, so the network under a HelloRoam plan and the network under an Airalo plan is the same equipment. The published list carries 2 operators for Vietnam, so a provider with more than one partner has somewhere to fall back to. This site publishes no throughput figure, because it runs no speed test.
5G status in Vietnam: Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities. Your eSIM automatically connects to the fastest available band when 5G is in range.
Installing a Vietnam eSIM where local SIMs need ID
Purchase your Vietnam eSIM from the provider app or website. Scan the QR code over WiFi at home. The eSIM installs in under 2 minutes. Label the new line "Vietnam Data" to keep it separate from your home SIM.
When you land in Vietnam, enable data roaming on the eSIM line. Your phone connects to Viettel's 5G network within 30 seconds. Vietnam requires SIM registration. Travel eSIM providers handle this automatically during activation.
Download your Vietnam eSIM while you still have WiFi at home. Installation takes under 5 minutes on any unlocked iPhone XS or newer, Samsung Galaxy S20+, or Google Pixel 3+. We recommend completing setup at least 24 hours before your 8-day trip. Vietnam has 2 carrier networks, and plans start at $3.49 for 1GB.
Your eSIM connects to Viettel's 5G network in Vietnam. The country operates 2 networks: Viettel, Vinaphone, and Mobifone. Viettel provides the strongest combination of urban reach and tourist-corridor coverage based on network data.
Open your provider's app, scan the QR code, and select Vietnam as your data plan destination. Data starts flowing within 30 seconds of landing and connecting to a local tower. The catalogue lists 7 plans for Vietnam, starting at $1.37/GB on Viettel's infrastructure.
Vietnam requires SIM registration for mobile connections. Passport required; real-name registration mandatory since 2018. Travel eSIM providers typically handle this step for you during activation. VPN usage is restricted in Vietnam. VPNs not illegal but government blocks many VPN services; Facebook and Google generally accessible. Saily includes built-in VPN from Nord Security if you need encrypted browsing.
5G is live in major cities: Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities in Vietnam. Outside urban centers, your eSIM falls back to 5G on Viettel. From the carriers' published coverage maps for Vietnam: Viettel publishes 4G along the Hai Van Pass route and across the Sapa mountain area. Vinaphone's map thins out in remote Ha Giang.
For a full walkthrough with screenshots, see our eSIM buying guide.
Vietnam data plans: cheap per gigabyte, so buy a size up
The published price ladder for Vietnam: 1GB at $3.49 ($3.49/GB), 3GB at $7.49 ($2.50/GB), 5GB at $11.09 ($2.22/GB), 10GB at $19.31 ($1.93/GB), 20GB at $27.49 ($1.37/GB). Best value sits at 20GB for $27.49, at $1.37 per gigabyte. Budget entry starts at $3.49 for 1GB. Premium unlimited daily data costs $4.43/day with 2GB at full speed before throttling. Longer commitments reduce the daily rate: the 30-day plan drops to $3.63/day (18% off). Among the 5 providers we ranked, HelloRoam scores highest on pricing (4.8/5). Holafly follows at 4.7/5. Ladder rates run from $1.37 to about $3.49 depending on plan size. Pricing context from our research: Vietnam mobile data prices are among the lowest globally. Local prepaid costs 80% less than airport eSIM purchases..
Before purchasing an eSIM for Vietnam, our editors flagged these details.
Coverage notes for Vietnam, from the carriers' published maps: Viettel publishes 4G along the Hai Van Pass route and across the Sapa mountain area. Vinaphone's map thins out in remote Ha Giang.
Our scoring notes for Vietnam: Viettel has the widest coverage in Vietnam, reaching remote northern mountains where Vinaphone and Mobifone have gaps..
VPN usage is restricted in Vietnam. VPNs not illegal but government blocks many VPN services; Facebook and Google generally accessible.
SIM registration requirement: Passport required; real-name registration mandatory since 2018.
WiFi availability in Vietnam: Free WiFi common in cafes and hotels in tourist areas; Vietnam is a major digital nomad hub.
Grab is essential for ride-hailing; works with international phone numbers.
Vietnam blocks some foreign gambling and adult content sites at ISP level.
Light travelers (maps, messaging, email) use 500MB-1GB per day. Moderate users (social media, photo uploads, ride-hailing) need 1-2GB daily. Heavy users (video calls, streaming, remote work) consume 2-4GB per day.
For a 8-day trip to Vietnam: light users need roughly 6GB, moderate users need 12GB. The 20GB plan at $27.49 on Viettel covers the moderate scenario.
WiFi in Vietnam: Free WiFi common in cafes and hotels in tourist areas; Vietnam is a major digital nomad hub. Available WiFi reduces your eSIM data consumption, but should not be relied on for critical tasks.
Vietnam eSIM pricing on Viettel: 1GB: $3.49 ($3.49/GB), 3GB: $7.49 ($2.50/GB), 5GB: $11.09 ($2.22/GB), 10GB: $19.31 ($1.93/GB), 20GB: $27.49 ($1.37/GB). Larger plans reduce the per-GB cost. All prices are one-time with no auto-renewal.
Unlimited option: $4.43/day with no data cap (2GB at full speed). Multi-day discounts available: the 30-day plan costs $3.63/day.
Airport SIM comparison: kiosk SIMs in Vietnam cost $5-15 for 6-20GB / 15-30 days with 10-15 min wait time. eSIM prices start at $1.37/GB with instant activation.
Explore all destinations in Asia or read our full buying guide to understand which provider wins for your travel style. See also: the rubric each provider is scored against.
Vietnam: the airport SIM wins on price, the eSIM wins on time
Buying a SIM at Tan Son Nhat (SGN) / Noi Bai (HAN) and installing an eSIM before departure compare on published price alone. Viettel, Vinaphone, and Mobifone sell prepaid SIMs at the arrivals terminal. Airport SIM cards typically cost $5-15 for 6-20GB / 15-30 days. Vendors quote 10-15 min for purchase and activation at the counter. An eSIM activates in under 2 minutes from your phone, with zero wait and no counter visit.
Local prepaid SIMs in Vietnam run $3-8 for 4-10GB / 30 days. The cheapest gigabyte in the published catalogue costs $1.37, which undercuts most prepaid counters. The eSIM also saves you from ID registration lines and store visits that eat into your first day.
Our comparison note: Local SIM cards in Vietnam are extremely cheap but require passport registration. eSIM skips this step entirely..
Our pick for Vietnam, and when unlimited overtakes per-gigabyte
For budget travelers the pricing dimension is the one to read: HelloRoam publishes an entry rate of $3.50/GB and scores 4.8/5 there, ahead of Holafly at 4.7/5. Plans in Vietnam attach to Vinaphone on 5G and Viettel Mobile on 5G, with Viettel and Mobifone also on the published carrier list. Airalo's Vietnam catalogue undercuts that: the ladder steps from $3.49 for 1GB to $27.49 for 20GB, and the 20GB rung is its cheapest gigabyte at $1.37. Holafly sells unlimited at $2.99/day, so a trip past 10 days costs more on the day rate than the 20GB rung costs outright at $27.49. One local detail the rubric does not score: Zalo is Vietnam's dominant messaging app. Locals prefer it over WhatsApp.
HelloRoam earns the Vietnam pick at 9.5/10, with the top mark on network tier, pricing and support. Its published entry rate is $3.50/GB, which the 20GB rung on this ladder beats at $1.37/GB.
Airalo follows at 9.3/10, 0.2 points back, and the ladder this page quotes is Airalo's own Vietnam catalogue, which bottoms out at $1.37/GB.
Worth knowing before you buy for Vietnam: Vietnam has extremely cheap local SIM data, often under $1/GB from carrier stores.
eSIM provider comparison for Vietnam (June 2026)| Provider | Score | $/GB | Best For | Action |
|---|
| HelloRoam | 9.5/10 | from $3.50/GB | Editors Choice | Get deal → |
|---|
| Airalo | 9.3/10 | $4.50/GB | Widest Coverage | Get deal → |
|---|
| Holafly | 8.9/10 | $2.99/day | Best Unlimited | Get deal → |
|---|
| Saily | 8.4/10 | $3.99/GB | Best Privacy | Get deal → |
|---|
| Nomad | 8/10 | $3.00/GB | Best Budget | Get deal → |
|---|
See our budget eSIM guide for the cheapest options, or our unlimited eSIM guide if data caps are a concern.
Provider assessments for Vietnam
HelloRoam
HelloRoam scores 9.5/10 on an entry rate of $3.50/GB, and the best rung on the Vietnam ladder is 20GB at $1.37/GB, below that. Every provider here rides the same host networks in Vietnam: Vinaphone on 5G and Viettel Mobile on 5G, plus Viettel and Mobifone.
Airalo
Airalo scores 9.3/10 on an entry rate of $4.50/GB, and the ladder on this page is its own Vietnam catalogue: $3.49 for 1GB up to $27.49 for 20GB, bottoming out at $1.37/GB.
Holafly
Holafly scores 8.9/10 and sells unlimited only, at $2.99/day, so the comparison is a break-even: under 10 days that costs less than the 20GB rung's $27.49, and past it costs more.
Saily
Saily scores 8.4/10 on an entry rate of $3.99/GB, and every rung on the Vietnam ladder costs less per gigabyte than that. VPN note for Vietnam: VPNs not illegal but government blocks many VPN services; Facebook and Google generally accessible.
Nomad
Nomad scores 8.0/10 on an entry rate of $3.00/GB, and Airalo's catalogue floor for Vietnam is $1.37/GB, under that.
Real-world usage in Vietnam
Navigation and maps in Vietnam
Google Maps and Waze use 5-10MB per hour of active navigation. On Viettel's 5G network, maps load in under 2 seconds. The 20GB plan at $27.49 covers 2-3 weeks of daily navigation.
Messaging and video calls
WhatsApp, FaceTime, and Zoom run smoothly on 5G in Vietnam. A 30-minute video call uses roughly 270MB. WiFi context: Free WiFi common in cafes and hotels in tourist areas; Vietnam is a major digital nomad hub.
Streaming and content
HD video streaming uses about 1.5GB per hour on Viettel's network. Holafly's unlimited plan from $2.99/day handles heavy streaming without data caps.
Typical 8-day trip
A moderate traveler uses about 1.5GB per day across maps, messaging, and photo uploads. For 8 days in Vietnam, plan for 12GB total. The 20GB plan at $27.49 is the best match for this usage level.
Value analysis for Vietnam
The 20GB plan delivers the strongest value at $1.37/GB for Vietnam. Budget travelers can start with 1GB at $3.49. Both tiers connect through Viettel's 5G network with identical speed access.
Unlimited data costs $4.43/day for Vietnam. For trips under 7 days, a fixed plan wins on cost. Longer stays or heavy data usage tips the balance toward unlimited.
HelloRoam leads our Vietnam value ranking with a 9.5/10 editorial score. 5 providers compete for Vietnam. The published ladder starts at $1.37/GB.
How the rubric scored eSIMs for Vietnam
All 5 providers are scored on the same five weighted dimensions, every input a figure the provider publishes: coverage 25%, pricing 25%, network tier 20%, app 15%, support 15%.
What the rubric read for Vietnam: a carrier list of 4 operators, with Vinaphone on 5G and Viettel Mobile on 5G; a 5-rung published ladder from $3.49 for 1GB to $27.49 for 20GB; a lowest catalogue rate of $1.37/GB, which is Airalo's; an unlimited daily option in the same Airalo catalogue.
Read the full scoring rubric.
Vietnam in the Asia eSIM landscape
Vietnam ranks in the mid tier for eSIM infrastructure in Asia. 2 networks accept eSIM roaming, with Viettel providing the primary routing for all 5 providers.
Per-GB pricing in Vietnam starts at $1.37, which is competitive for the Asia region. 7 plans are available across providers, including unlimited daily data at $4.43/day.
5G availability gives Vietnam an edge over neighboring destinations that remain on 4G LTE only. Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities.
Vietnam eSIM FAQ, with the VPN rules that apply
Why does HelloRoam earn your Vietnam eSIM pick?
HelloRoam scores 9.5/10 on our published rubric for Vietnam, the highest composite of the five providers ranked here. Plans for Vietnam route through Viettel on 5G. HelloRoam refunds an unactivated eSIM for 180 days. Its dimension scores are coverage 4.9/5, network tier 4.7/5, app 4.7/5, pricing 4.8/5 and support 4.5/5. Airalo's published ladder for Vietnam starts at $1.37/GB, with its 20GB plan at $27.49.
How do you score eSIM providers in Vietnam?
The BesteSIM rubric scores HelloRoam, Airalo, Holafly, Saily and Nomad on five published inputs. No figure here comes from a speed test. Coverage carries 25% and reads the operator list for Vietnam, which names 2 carrier networks led by Viettel. Price carries 25%, normalised to cost per gigabyte across every plan size. Network tier carries 20%, app features 15%, and support access 15%, the last read off published support languages: HelloRoam answers in 63, Airalo in 12, Saily in 1. Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities. Every input is a published figure a reader can check.
What changed in the 2026 Vietnam eSIM rankings?
Pricing update for 2026: the 1GB plan is now $3.49. All five providers route through Viettel in Vietnam. 5G coverage note: Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities. We rank 7 plans for Vietnam, with the 20GB plan at $1.37/GB.
Which phones support eSIM for Vietnam?
Your eSIM connects to Viettel's 5G network in Vietnam. 5G is confirmed on iPhone XS+, Samsung Galaxy S20+, and Google Pixel 3+. Your device must be carrier-unlocked. Viettel publishes 5G service across Vietnam. Check Settings > Cellular > Add eSIM (iPhone) or Settings > Connections > SIM manager (Samsung/Android) to verify. Most 2022+ Android flagships also work on Viettel's 5G signal in Vietnam.
Can I make phone calls with a Vietnam travel eSIM?
Travel eSIMs provide data only on Viettel's 5G network. No local phone number is assigned. Use WhatsApp, FaceTime, or Zoom over your Vietnam data connection. Keep your home SIM active to receive calls on your regular number. All five providers ranked here (HelloRoam, Airalo, Holafly, Saily, Nomad) sell data-only plans for Vietnam.
Can I use a VPN with my eSIM in Vietnam?
VPN usage is restricted in Vietnam. VPNs not illegal but government blocks many VPN services; Facebook and Google generally accessible. Saily is the only one of the five that bundles a VPN: NordVPN ships inside the Saily app as a published plan feature, running over the same Viettel connection the other four use. HelloRoam, Airalo, Holafly and Nomad sell data without one. Local content restrictions apply normally. The rubric scores published plan terms, not VPN bypass capability.
What 5G coverage can I expect from a Vietnam eSIM?
All five providers route Vietnam eSIMs through Viettel or Viettel Mobile, the leading carrier in the Asia region. Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities. Viettel publishes 5G service across the main cities and tourist corridors, and every provider on this page rides that same network rather than one of its own.
Can I tether or hotspot with a Vietnam eSIM?
It depends on the provider. Airalo, Saily, and Nomad allow tethering on their Vietnam plans with no extra fee. You can share your 5G connection on Vinaphone with laptops and tablets. Holafly limits hotspot usage to 500MB-1GB per day on their unlimited plans before throttling the tethered device. Airalo's hotspot delivers 5G speeds to connected laptops and tablets without throttling.
How much does an airport SIM cost vs eSIM in Vietnam?
Airport SIM cards in Vietnam typically cost $5-15 for 6-20GB / 15-30 days from Viettel, Vinaphone, Mobifone. You will wait 10-15 min in line, plus time for ID registration. An eSIM starts at $1.37/GB with instant Viettel activation from your phone. Compare the two on published price alone: $5-15 for 6-20GB / 15-30 days at the kiosk against $1.37/GB from the phone, with no counter queue and no passport scan.
What is the best-scoring eSIM plan for Vietnam?
The 20GB plan at $27.49 ($1.37/GB) takes the highest pricing score for Vietnam, because it holds the lowest published cost per gigabyte in the catalogue. It routes through Viettel on 5G, the same carrier every one of the five providers uses here. Full plan range: 1GB at $3.49, 3GB at $7.49, 5GB at $11.09, 10GB at $19.31, 20GB at $27.49. The 20GB tier suits trips of 5 days or more.
How much does roaming cost in Vietnam vs an eSIM?
Home carrier roaming in Vietnam typically costs $5-15/day or $10-20/GB. An eSIM starts at $1.37/GB on Viettel's 5G network. The 20GB plan at $27.49 covers most trips for a fraction of roaming fees.
Can I use multiple eSIMs in Vietnam?
Most modern phones support 8-10 eSIM profiles simultaneously. Only one data eSIM can be active at a time in Vietnam. You can keep your home SIM active for calls while using an eSIM on Viettel for data. Switch between profiles in Settings without removing any.
Staying connected in Vietnam on WiFi and mobile data
Data usage runs high in Vietnam due to ride-hailing apps, translation tools, and maps. Travelers use about 1.2GB per day on average. A typical 8-day visit needs roughly 9.6GB of mobile data. WiFi note: Free WiFi common in cafes and hotels in tourist areas; Vietnam is a major digital nomad hub.
You will likely arrive at Tan Son Nhat (SGN) / Noi Bai (HAN). the local time zone is ICT (UTC+7). wall outlets use Type A/C sockets, so pack the right adapter.
Add 113/115 to your phone as the local emergency line for Vietnam. the local currency is VND (₫). Data on Viettel starts flowing as soon as your plane touches down. No setup needed at the airport.
Travel timing: Dry season varies by region; north is best October-April, south November-April. eSIM prices from international providers stay fixed regardless of peak or off-peak travel periods.
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Vietnam · 5 providers compared
