Travel eSIM Reviews
Editor's Choice: HelloRoamHelloRoam is the best eSIM for Vietnam in 2026
Quick Answer:
HelloRoam is the best eSIM for Vietnam in 2026, scoring 8.9/10 on our rubric with plans from $1.37/GB on Viettel's 5G network. Airalo (8.7/10) is the multi-country alternative. Holafly (8.3/10) is the unlimited-data alternative.
HelloRoam — 8.9/10 on our rubric, across 186 countries
Plans $1.37/GB. 180-day refund. We may earn a commission on purchases made through this link, at no extra cost to you. Read how we score providers in our review process.
See Vietnam plansAiralo, Holafly, Saily and Nomad each bill checkout in a single currency, US dollars. A card held in euros or yen pays a 2 to 4 percent bank conversion markup on top of the listed price at all four.
Quick Answer
HelloRoam is the best eSIM for Vietnam in 2026, scoring 8.9/10 on our rubric with plans from $1.37/GB on Viettel Mobile's 5G network. Airalo (8.7/10) is the multi-country alternative. Holafly (8.3/10) is the unlimited-data alternative.
Provider Comparison
HelloRoam is the best eSIM for Vietnam in 2026 with plans from $1.37/GB. Viettel Mobile is the 5G host our plan feed names there. Airalo covers Vietnam on Mobifone starting at $1.70/GB. Recommendation: HelloRoam first, Airalo for multi-country trips, Holafly for unlimited data. HelloRoam unlimited daily plans for Vietnam start at $4.43 per day. Holafly is the unlimited-data alternative.
The Shortlist
Vietnam eSIM providers, top 5 by score
Sorted by overall rating. Each provider rides a carrier in our Vietnam plan feed, and the carrier differs by provider.
| Provider | Our rubric | From / GB |
|---|---|---|
 HelloRoam#1 PickEditor's Choice | 8.9 / 10on our rubric | from $0.29/GB |
 AiraloBest Coverage | 8.7 / 10on our rubric | from $1.70/GB |
 HolaflyBest Unlimited | 8.3 / 10on our rubric | from $2.50/day |
 SailyPrivacy Pick | 8.6 / 10on our rubric | from $1.10/GB |
 NomadBudget Pick | 8.1 / 10on our rubric | from $1.40/GB |
Prices verified June 2026. Updated weekly from provider websites.
Unlimited Data
Vietnam unlimited daily data plans
Unlimited daily data with automatic discount tiers. Longer stays cost less per day.
| Duration | Total Price | Per Day | Savings |
|---|---|---|---|
| 1 day | $4.43 | $4.43 | 0% |
| 3 days | $12.63 | $4.21 | 5% |
| 1 week | $27.29 | $3.90 | 12% |
| 2 weeks | $49.62 | $3.54 | 20% |
| 30 daysBest Value | $90.37 | $3.01 | 32% |
Prices verified June 2026. Discounts applied automatically at checkout.
Coverage
Vietnam coverage reality
Vietnam runs on 3 major mobile networks — Viettel, Vinaphone, and Mobifone — with 5G as the top available standard. Travel eSIM plans in our feed run on these networks, and Viettel carries the widest footprint of them. 5G coverage in Vietnam is limited to select urban zones. Viettel launched 5G in Hanoi and HCMC in 2024; expanding to major cities Viettel provides the widest geographic reach, with Vinaphone offering strong coverage in urban centres. Both carry travel eSIM plans in our feed for Vietnam. Which carrier your plan lands on depends on the provider you buy from. Viettel has the widest coverage in Vietnam, reaching remote northern mountains where Vinaphone and Mobifone have gaps.
Available Networks
Southeast Asia
Connectivity in Southeast Asia: What to Expect in Vietnam
Southeast Asian islands present the biggest connectivity challenge for eSIM users. Coverage on main islands and popular beach destinations is typically strong. Smaller, less-developed islands may have limited or no signal. Download offline maps and important documents before taking a ferry.
Monsoon season in Vietnam can affect mobile signal quality. Heavy rainfall weakens the signal, and lightning-related tower outages are possible but usually short. Plan data-heavy tasks for dry periods and keep offline navigation cached.
Southeast Asian cities have extensive cafe WiFi networks. Speed and reliability vary. Hotel WiFi tends to be more consistent than cafe connections. Your eSIM on Viettel gives you a connection that does not depend on whichever hotspot is nearby.
Local tips
Vietnam connectivity quirks
Vietnam has a handful of connectivity details worth knowing before you arrive.
• VPNs not illegal but government blocks many VPN services; Facebook and Google generally accessible • Grab is essential for ride-hailing; works with international phone numbers • Zalo is Vietnam's dominant messaging app — locals prefer it over WhatsApp
Deep Dive
Vietnam VPN, IMEI and carrier details
Vietnam's mobile network runs through Viettel, Vinaphone, and Mobifone.
VPN services face restrictions in Vietnam. Check local regulations before relying on a VPN connection.
No IMEI registration is required for foreign devices.
Pricing
Vietnam eSIM pricing, plan by plan
HelloRoam offers the best value for Vietnam at $1.37/GB as of June 2026. Plans are available at multiple data tiers to match your travel needs.
| Data | Price | Per GB |
|---|---|---|
| 1GB | $3.49 | $3.49 |
| 3GB | $7.49 | $2.50 |
| 5GB | $11.09 | $2.22 |
| 10GB | $19.31 | $1.93 |
| 20GB | $27.49 | $1.37 |
| Unlimited / day | $4.43/day | — |
Setup
Vietnam eSIM activation, step by step
- 01
Choose a plan
Select a data plan for Vietnam from your chosen provider above. Pick the data tier that matches your trip length.
- 02
Complete purchase
Pay with any major credit card or digital wallet. No subscription required. You receive a QR code by email within 60 seconds.
- 03
Scan QR code
Open your phone settings, add a new cellular plan, and scan the QR code. Label it for easy identification.
- 04
Activate on arrival
Set the eSIM as your default data line when you land in Vietnam. Connect to Viettel's 5G network instantly.
Data Tips
Vietnam data budget by trip length
Travelers to Vietnam consume an average of 1.2GB per day based on regional usage data. A standard two-week trip therefore requires roughly 17GB — plan your tier accordingly. WiFi is widely available in Vietnam's urban centres and tourist areas, letting you offset mobile data consumption at restaurants and accommodation. Free WiFi common in cafes and hotels in tourist areas; Vietnam is a major digital nomad hub Peak travel season in Vietnam runs Oct-Apr. Dry season varies by region; north is best October-April, south November-April Network congestion during peak periods can reduce effective speeds in high-traffic tourist zones — consider buying one tier higher than your estimated daily usage. HelloRoam's Vietnam plans start at $1.37/GB with full-speed data on all tiers. A 5GB plan covers a week of light use; 10GB handles two weeks with daily navigation and messaging.
Comparison
Vietnam provider fit, trip type by trip type
HelloRoam is the best eSIM for Vietnam, routing plans through Viettel, the widest Tier-1 host in the country, at $1.37/GB on 5G. Vietnam mobile data is cheap by global standards, and local prepaid undercuts an airport eSIM purchase. HelloRoam remains the first pick for Vietnam. Airalo is the multi-country alternative: it sells Vietnam plans through both Viettel and Vinaphone, which helps when Viettel coverage thins in rural areas. HelloRoam includes hotspot and tethering on every Vietnam plan. Holafly is the unlimited-data alternative, from $4.43/day, for travelers who stream or take video calls and do not want a fixed cap. HelloRoam is the overall pick on score, support, and refund window. Local Viettel SIM costs $3 for 6GB/30 days — the cheapest in Southeast Asia, but registration hassle adds 20 min.
Best For
Which Provider Fits Your Vietnam Trip
HelloRoam is the best eSIM for Vietnam at $1.37/GB on Viettel, and the first pick for solo travelers and short trips. Airalo is the multi-country alternative. Holafly is the unlimited-data alternative. Saily is the privacy alternative. Nomad is the budget alternative in select markets.
eSIM vs Local SIM
Vietnam eSIM against the local SIM
Local prepaid SIMs in Vietnam cost $3-8 for 4-10GB / 30 days and are available at the airport. A travel eSIM at $1.37/GB removes the queue, passport requirement, and SIM swap. Vietnam requires SIM registration, adding friction to the local purchase process. For trips under two weeks, a travel eSIM is the more practical choice.
Common Questions
What Travelers Ask About Vietnam eSIMs
What is the best Vietnam eSIM?
HelloRoam is the best eSIM for Vietnam in 2026 at $1.37/GB on Viettel Mobile's 5G network. Our rubric ranks HelloRoam 8.9/10 overall. Airalo (8.7/10) is the multi-country alternative.
What does a Vietnam eSIM cost?
eSIM plans for Vietnam start at $1.37/GB with HelloRoam as of 2026. Available plans include 3GB for $7.49, 5GB for $11.09, 10GB for $19.31. Unlimited daily plans start at $4.43/day with Holafly. Prices vary by provider: Airalo starts at $1.70/GB, Saily at $1.10/GB.
What separates a Vietnam eSIM from a SIM card?
eSIM is better than a physical SIM card for most travelers to Vietnam. An eSIM activates instantly through a QR code before you land, while airport SIM cards at Noi Bai/Tan Son Nhat require waiting in line and showing ID. eSIM plans from HelloRoam start at $1.37/GB and connect to Viettel Mobile's 5G network.
Timing
Vietnam connectivity, season by season
Network performance in Vietnam varies by season. During Oct-Apr, tourist-heavy areas carry more traffic on the same towers, so data slows in the busiest zones. Buy one data tier above your estimate for a peak-season trip. Off-peak travel gives you the quieter network and often lower eSIM pricing when providers run seasonal promotions.
Savings
Vietnam cost savings, eSIM against roaming
A 5GB eSIM plan for Vietnam costs $11.09 with HelloRoam, and that is the whole charge for the plan. A carrier day pass works the other way round: it bills for every day you are away, so the total climbs with the length of the trip. Look up the day-pass rate your own carrier publishes for Vietnam and multiply it by your trip length, then compare that total against the plan price above. Travel eSIMs are prepaid with no recurring charges and no hidden fees.
Compatibility
Vietnam eSIM device compatibility
All five eSIM providers work with iPhone XS (2018) and newer, Samsung Galaxy S20 and newer, and Google Pixel 3 and newer in Vietnam. Your phone must be carrier-unlocked. Dual SIM operation lets you keep your home number active while using the travel eSIM for data. Check your device settings before purchasing.
What Fell Short
Vietnam gaps where eSIMs fall short
VPN usage is restricted in Vietnam, which may limit access to certain services. Rural and remote areas have coverage gaps on all carriers. No eSIM provider offers local phone numbers for Vietnam plans.
Verdict
Vietnam: our recommendation
HelloRoam is the best eSIM for Vietnam in 2026, scoring 8.9/10 on our rubric with plans from $1.37/GB on Viettel's 5G network. Airalo (8.7/10) is the multi-country alternative. Holafly (8.3/10) is the unlimited-data alternative. All three deliver reliable 5G connectivity across Vietnam's urban and tourist areas.
Vietnam eSIM, defined
An eSIM for Vietnamis a digital SIM card that connects to local carrier networks without a physical card. You download a carrier profile by scanning a QR code — activation takes under 2 minutes. Your phone's built-in eSIM chip replaces the plastic SIM tray entirely, letting you keep your home number active on the other line.
FAQ
Vietnam eSIM questions, answered
01What is the best Vietnam eSIM of 2026?
HelloRoam is the best eSIM for Vietnam in 2026, scoring 8.9/10 on our rubric with plans from $1.37/GB on Viettel's 5G network. Airalo (8.7/10) is the multi-country alternative. Holafly (8.3/10) is the unlimited-data alternative. Viettel has the widest coverage in Vietnam, reaching remote northern mountains where Vinaphone and Mobifone have gaps.
02What separates the top Vietnam eSIM providers?
HelloRoam offers the lowest per-GB rate at $1.37/GB for most travelers in Vietnam. Airalo (8.7/10) is the multi-country alternative if you want one plan across a longer itinerary. Holafly (8.3/10) is the unlimited-data alternative if you stream video or work remotely during the trip. Vietnam mobile data is cheap by global standards, and local prepaid undercuts an airport eSIM purchase.
03What phones support a Vietnam eSIM?
Any unlocked eSIM-compatible phone works with a travel eSIM in Vietnam. Supported devices include iPhone XS and newer, Samsung Galaxy S20 and newer, and Google Pixel 3 and newer. Your phone connects through Viettel and Vinaphone, delivering 5G coverage. Carrier-locked phones from AT&T, Verizon, or T-Mobile may need unlocking before use. All five providers we review — HelloRoam, Airalo, Holafly, Saily, and Nomad — support the same device list.
04What does an airport SIM counter add over a Vietnam eSIM?
A travel eSIM at $1.37/GB competes directly with airport SIMs in Vietnam. Local airport plans from Viettel and Vinaphone and Mobifone typically cost $5-15 for 6-20GB / 15-30 days. The eSIM removes the kiosk queue, passport registration requirement, and SIM swap process — the plan installs before departure and activates on landing. Local airport SIMs can undercut eSIM pricing in some tiers but require in-person purchase and, in some cases, ID registration.
05What happens when a Vietnam eSIM runs beside your regular SIM?
Yes. Most modern phones support dual SIM operation with one physical SIM and one eSIM active simultaneously in Vietnam. Your home SIM keeps your regular phone number for calls and texts. The travel eSIM handles data locally. Switch the default data line in your phone settings without removing your home SIM.
06What activation time does a Vietnam eSIM take?
Activating a travel eSIM for Vietnam takes under 90 seconds from purchase with most providers. You receive a QR code by email within 60 seconds of payment. Scan it in your phone’s cellular settings, label the plan, and set it as your data line when you land in Vietnam. Installation can happen before departure so the plan is ready the moment you arrive.
07What changes when a VPN runs over a Vietnam travel eSIM?
VPN use in Vietnam is restricted. VPNs not illegal but government blocks many VPN services; Facebook and Google generally accessible A travel eSIM from HelloRoam or Airalo does not bypass local regulations — your eSIM connects to the same national network infrastructure as any local SIM. Saily bundles a NordVPN integration but is still subject to local law. Check your home country's travel advisory for current guidance before using a VPN in Vietnam.
08Is it eSIM, e-SIM, or e SIM?
eSIM, e-SIM, and e SIM all refer to the same technology — an embedded SIM built into your phone. The official industry term is eSIM (embedded SIM), standardized by the GSMA. Whether you search for e-SIM or e SIM, you will find the same digital SIM card technology. No physical card needed.
Vietnam data starts the moment you land
HelloRoam: from $1.37/GB on Viettel. Activates the moment you land.