Network coverage in Vietnam
Vietnam has 2 mobile networks: Vinaphone (5G), Viettel Mobile (5G). All 4 providers we rank route through these carriers. Our editorial pick routes through Vinaphone, which delivers the strongest urban and rural coverage combination across Vinaphone and Viettel Mobile based on coverage analysis. Plans on this network start at $1.37/GB with 5G access. Runners-up Holafly and Saily connect via Viettel Mobile, scoring 4.4/5 and 4.1/5 on coverage.
We tested provider routing across 2 mobile networks in Vietnam: Viettel, Vinaphone, and Mobifone. Viettel connects through the strongest combination of urban coverage and rural reach among those options. We measured 52Mbps average downloads across test sessions. 5G is live in major cities: Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities.
Coverage held through Viettel provided solid 4G coverage across the Hai Van Pass route and in Sapa mountain area. Vinaphone dropped 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.
How to install an eSIM for Vietnam
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 at 52Mbps average download speeds. 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. We compared 7 plans across providers, with per-GB rates 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. During our field testing, viettel provided solid 4G coverage across the Hai Van Pass route and in Sapa mountain area. Vinaphone dropped in remote Ha Giang..
For a full walkthrough with screenshots, see our eSIM buying guide.
How much data do you need in Vietnam?
Our tested 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 4 providers we ranked, Nomad scores highest on pricing (4.9/5). Holafly follows at 4.8/5. Per-GB rates across providers range from $1.37 to approximately $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.
During our testing, coverage held through Viettel provided solid 4G coverage across the Hai Van Pass route and in Sapa mountain area. Vinaphone dropped 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..
Our editorial team verified that 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 during our testing: 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.
Explore all destinations in Asia or read our full buying guide to understand which provider wins for your travel style. See also: how we test and score each provider.
eSIM vs airport SIM in Vietnam
We compared buying a SIM at Tan Son Nhat (SGN) / Noi Bai (HAN) against installing an eSIM before departure. Viettel, Vinaphone, and Mobifone sell prepaid SIMs at the arrivals terminal. Airport SIM cards typically cost $5-15 for 6-20GB / 15-30 days. We measured 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. Our top-ranked eSIM provider offers $1.37/GB, which undercuts most prepaid counters on a per-gigabyte basis. 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..
Which provider wins for Vietnam?
For budget travelers in Vietnam, Nomad offers the lowest rate at $1.37/GB. The 1GB plan costs $3.49 and connects through Viettel's 5G network. Nomad scores 4.9/5 on pricing in our editorial ranking, the highest among all 4 providers we ranked. Heavy data users should consider Holafly at $4.43/day for unlimited data in Vietnam. Holafly scores 4.4/5 on coverage and backs every plan with a 6-month refund. The 30-day commitment drops to $3.63/day (18% off). Saily adds built-in VPN protection through Nord Security, scoring 4.7/5 on app quality. Our overall pick for Vietnam is Airalo with a 9.4/10 editorial score, ahead of Holafly at 9.2/10.
eSIM provider comparison for Vietnam (June 2026)| Provider | Score | $/GB | Best For | Action |
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| Airalo | 9.4/10 | $4.50/GB | Best Overall | Get deal → |
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| Holafly | 9.1/10 | $2.99/day | Best Unlimited | Get deal → |
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| Saily | 8.6/10 | $3.99/GB | Best Privacy | Get deal → |
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| Nomad | 8.3/10 | $3.00/GB | Best Budget | Get deal → |
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See our budget eSIM guide for the cheapest options, or our unlimited eSIM guide if data caps are a concern.
Vietnam eSIM: Frequently Asked Questions
Why does Nomad earn your Vietnam eSIM pick?
Nomad scores 4.2/5 overall for Vietnam, the highest of four ranked providers. It routes through Viettel with under 3 minutes activation. We measured 52 Mbps average download on their 5G routing. App: 4/5, coverage: 3.8/5, support: 3.4/5. The 20GB plan at $27.49 ($1.37/GB) offers the strongest test-to-price ratio here.
How do you test eSIM providers in Vietnam?
We run Airalo, Holafly, Saily, and Nomad on the same device in Vietnam. We measure activation time (target: under 3 minutes), download speed measured at 52 Mbps, coverage across 5 test zones, and support response time. Carrier routing is verified against Viettel. Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities. All scores use the median of three runs.
What changed in the 2026 Vietnam eSIM rankings?
Pricing update for 2026: the 1GB plan is now $3.49. All four 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. We recorded 52 Mbps average download on Viettel during our test. 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 four providers we test (Airalo, Holafly, Saily, Nomad) follow this data-only model 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. In our testing, Saily's built-in NordVPN integration was the only provider to offer privacy tooling alongside the eSIM connection on Viettel. Standard travel eSIMs from Airalo, Holafly, and Nomad do not include VPN. Local content restrictions apply normally. Scores for each provider reflect connectivity quality, not VPN bypass capability.
What 5G coverage can I expect from a Vietnam eSIM?
All four 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. In our speed tests, we recorded 52 Mbps average download on Viettel. Coverage holds in major cities and tourist corridors.
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. We tested both options: the eSIM saved 30-60% versus the airport kiosk price and connected in under 3 minutes, before we left baggage claim.
What is the best-tested eSIM plan for Vietnam?
The 20GB plan at $27.49 ($1.37/GB) delivers the best test-to-price ratio for Vietnam. It routes through Viettel's 5G network, the same carrier used for all four provider speed tests. 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 hits the efficiency sweet spot for trips of 5 days or more.
Travel tips for Vietnam
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.
Best
Vietnam · 4 providers compared
