We weigh travel eSIM brands for Vietnam on coverage, speed, reliability, which local carrier they ride, passport and face-scan registration rules, and fair use terms. Ranking is never for sale.
HelloRoam is Simscanner's top-ranked travel eSIM for Vietnam on our modelled comparison; Jetpac is the cheapest plan we tracked, from $1.00. Vietnam's market is overwhelmingly state-owned: the three giants held roughly 98 per cent of subscribers in 2023, with army-run Viettel alone near 57.6 per cent. Vietnam joins no regional roaming union, so a local plan does not extend to Cambodia, Laos or Thailand. Coverage is strongest around Hanoi, Ho Chi Minh City and Da Nang. Weigh the brands in the ranking below.
Modelled estimates. Winner appears after verification.
We grade each brand on how far it reaches, how fast it runs, how steady it stays, which Vietnamese carrier carries it, how openly it states unlimited and fair use limits, how cleanly its onboarding handles the passport and face-scan rules, and what reviewers report. Independent throughout, and never for sale.
A quick read of the field. Drop to the full grid lower down for reach, pace, steadiness, fair use, tethering, host carriers, and reviewer signals.
| Brand | Overall | Coverage | Speed | Unlimited |
|---|---|---|---|---|
HelloRoam |
87 |
90 |
91 |
Yes |
Airalo |
83 |
85 |
88 |
Yes |
Holafly |
86 |
89 |
86 |
Yes |
Nomad |
83 |
81 |
83 |
Yes |
Saily |
86 |
82 |
89 |
Yes |
Ubigi |
86 |
86 |
90 |
Yes |
82 |
81 |
86 |
No |
Swipe sideways to read every column. The brand name stays pinned on the left.
| Brand | Rank | Overall | Coverage | Speed | Reliability | Unlimited | FUP / fair use | Hotspot | Local networks | Review signal | Confidence | Action |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
HelloRoam |
1 | 87 |
90 |
91 |
Yes | Published no throttling; ~6 GB/day tested then ~1 Mbps (US) | Allowed | Vinaphone · Viettel · Vietnamobile | 4.5 | Verified | See brand → Visit HelloRoam ↗ | |
Airalo |
5 | 83 |
85 |
88 |
Yes | 3 GB/day then throttled | Not stated | Viettel | 3.8 | Secondary | See brand → Visit Airalo ↗ | |
Holafly |
2 | 86 |
89 |
86 |
Yes | High-speed ~90 GB/month | Allowed (share ~1 GB/day) | VNPT · Vinaphone | 4.4 | Verified | See brand → Visit Holafly ↗ | |
Nomad |
6 | 83 |
81 |
83 |
Yes | 2 GB/day then throttled | Allowed | MobiFone · Vinaphone · Vietnamobile | 4.4 | Secondary | See brand → Visit Nomad ↗ | |
Saily |
3 | 86 |
82 |
89 |
Yes | 5 GB/day then throttled | Not stated | MobiFone · Vinaphone | 3.6 | Secondary | See brand → Visit Saily ↗ | |
Ubigi |
4 | 86 |
86 |
90 |
Yes | 20 GB (7d) / 60 GB (30d) high-speed | Allowed (data sharing) | VNPT · Vinaphone | 3.8 | Verified | See brand → Visit Ubigi ↗ | |
| 7 | 82 |
81 |
86 |
No | No unlimited Vietnam plan | Allowed | MobiFone | 4.1 | Secondary | See brand → Visit Jetpac ↗ |
A travel eSIM brand sells the plan; a Vietnamese carrier carries the signal. Whichever national network a brand rides is what fixes your real-world coverage, your reach beyond the big cities, and whether 5G appears. The grid further down maps each brand to its host carrier in Vietnam.
| Brand | Connected network | 4G / 5G | Main cities | Rural confidence | Source | Confidence |
|---|---|---|---|---|---|---|
HelloRoam |
Vinaphone · Viettel · Vietnamobile | 5G/4G | Solid in the main cities | Rural: Medium | helloroam.com | Verified |
Airalo |
Viettel | 4G/5G | Good metro coverage | Rural: Medium-high | esimdb.com | Secondary |
Holafly |
VNPT · Vinaphone | 4G LTE/5G | Wide urban reach | Rural: High | holafly.com | Verified |
Nomad |
MobiFone · Vinaphone · Vietnamobile | 4G/5G | Wide urban reach | Rural: High | esimdb.com | Secondary |
Saily |
MobiFone · Vinaphone | 4G/5G | Good metro coverage | Rural: Medium-high | esimdb.com | Secondary |
Ubigi |
VNPT · Vinaphone | 4G/5G | Strong across major cities | Rural: Good | ubigi.com | Verified |
| MobiFone | 5G | Wide urban reach | Rural: High | jetpacglobal.com | Secondary |
Whether you must show identity papers comes from national law, not from the eSIM brand. Here is the verified position for Vietnam.
Vietnam runs down the eastern edge of mainland Southeast Asia, sharing land borders with China to the north and Laos and Cambodia to the west, with a long South China Sea coastline.
The full grid of every brand and plan offered for Vietnam, with data, validity, price, host network, hotspot, KYC and top-up. Because brand pricing shifts often and loads client-side, Simscanner checks each row at source rather than estimating it. Every cell is sourced where the brand publishes it.
| Brand | Plan | Data | Validity | Price (VND) | Network | Hotspot | KYC | Top-up | Source |
|---|---|---|---|---|---|---|---|---|---|
HelloRoam |
1GB/7d $3.49 · 10GB/30d $19.31 · Unlimited daily | Entry 1 GB / 7 days | Per plan above | USD only | Vinaphone · Viettel · Vietnamobile | Allowed | Not stated | Not stated | helloroam.com |
Airalo |
1GB/3d $4 · 5GB/7d $10 · 10GB/15d $24 · 50GB/30d $49 | Entry 1 GB / 3 days | Per plan above | USD only | Viettel | Not stated | Not stated | Not stated | esimdb.com |
Holafly |
Unltd 3d $11.70 · 15d $50.90 · 30d $74.90 | Entry Unlimited / 3 days | Per plan above | USD only | VNPT · Vinaphone | Allowed (share ~1 GB/day) | Not required | Not stated | holafly.com |
Nomad |
1GB/7d $4 · 3GB/30d $8 · 10GB/30d $18 · Unltd 5d $18 · 50GB/30d $39 | Entry 1 GB / 7 days | Per plan above | USD only | MobiFone · Vinaphone · Vietnamobile | Allowed | Not stated | Not stated | esimdb.com |
Saily |
1GB/7d $3.99 · 3GB/30d $7.99 · 10GB/30d $17.99 · 20GB/30d $28.99 · Unltd 15d $48.99 | Entry 1 GB / 7 days | Per plan above | USD only | MobiFone · Vinaphone | Not stated | Not stated | Not stated | esimdb.com |
Ubigi |
3GB/15d $6.90 · 10GB/30d $12.90 · Unltd 7d $24.90 · Unltd 30d $54.90 | Entry 3 GB / 15 days | Per plan above | USD only | VNPT · Vinaphone | Allowed (data sharing) | Not stated | Not stated | ubigi.com |
| 1GB/4d $1 · 20GB $25 · 40GB/30d $60 | Entry 1 GB / 4 days | Per plan above | USD only | MobiFone | Allowed | Not stated | Not stated | jetpacglobal.com |
The word "unlimited" rarely means limitless. Most brands attach a fair use policy that slows you once a daily or trip-long cap is hit. The grid below sets out that cap, the speed you drop to, and whether tethering is allowed.
| Brand | Unlimited? | High-speed allowance | Throttle after FUP | Hotspot | Policy clarity | Notes | Source | Confidence |
|---|---|---|---|---|---|---|---|---|
HelloRoam |
Yes | Published no throttling; ~6 GB/day tested then ~1 Mbps (US) | ~1 Mbps after ~6 GB/day (tested, US) | Allowed | Published no throttling; ~6 GB/day tested then ~1 Mbps (US) · ~1 Mbps after ~6 GB/day (tested, US) | helloroam.com | Verified | |
Airalo |
Yes | 3 GB/day then throttled | 1 Mbps | Not stated | 3 GB/day then throttled · 1 Mbps | esimdb.com | Secondary | |
Holafly |
Yes | High-speed ~90 GB/month | 256-1024 kbps | Allowed (share ~1 GB/day) | High-speed ~90 GB/month · 256-1024 kbps | holafly.com | Verified | |
Nomad |
Yes | 2 GB/day then throttled | 1000 kbps | Allowed | 2 GB/day then throttled · 1000 kbps | esimdb.com | Secondary | |
Saily |
Yes | 5 GB/day then throttled | 1 kbps | Not stated | 5 GB/day then throttled · 1 kbps | esimdb.com | Secondary | |
Ubigi |
Yes | 20 GB (7d) / 60 GB (30d) high-speed | 2 Mbps | Allowed (data sharing) | 20 GB (7d) / 60 GB (30d) high-speed · 2 Mbps | ubigi.com | Verified | |
| No | No unlimited Vietnam plan | n/a | Allowed | No unlimited Vietnam plan · n/a | jetpacglobal.com | Secondary |
How fast a travel eSIM feels in Vietnam depends on the town you are in and the carrier it has latched onto. The grid reports each brand's typical download, upload, latency and whether you are on 4G or 5G. Figures shown are modelled estimates.
| Brand | Avg download | Avg upload | Latency | 4G / 5G | City confidence | Reliability | Last reviewed |
|---|---|---|---|---|---|---|---|
HelloRoam |
79 Mbps | 23 Mbps | 33 ms | 5G/4G | High in main cities | Reviewed 15 Jun 2026 | |
Airalo |
72 Mbps | 21 Mbps | 36 ms | 4G/5G | Good in main cities | Reviewed 15 Jun 2026 | |
Holafly |
67 Mbps | 19 Mbps | 39 ms | 4G LTE/5G | High in main cities | Reviewed 15 Jun 2026 | |
Nomad |
60 Mbps | 17 Mbps | 42 ms | 4G/5G | Good in main cities | Reviewed 15 Jun 2026 | |
Saily |
74 Mbps | 22 Mbps | 35 ms | 4G/5G | Good in main cities | Reviewed 15 Jun 2026 | |
Ubigi |
77 Mbps | 22 Mbps | 34 ms | 4G/5G | Good in main cities | Reviewed 15 Jun 2026 | |
| 67 Mbps | 19 Mbps | 39 ms | 5G | Good in main cities | Reviewed 15 Jun 2026 |
We model public ratings from the App Store, Google Play and Trustpilot, then surface the recurring themes travellers raise about each brand. Ratings and themes shown are Simscanner modelled estimates, not verified review counts.
Aggregate is a Simscanner modelled estimate across the tracked brands.
Brand-agnostic steps. The exact prompts vary by brand and handset, and brand-specific walkthroughs live on each brand profile.
Make sure your handset is eSIM-capable and carrier-unlocked before you buy a Vietnam plan. Recent iPhone and most flagship Android models qualify.
Pay for the plan, then load the eSIM by scanning its QR code or tapping one-tap install while on home Wi-Fi, ahead of your flight to Vietnam, which sidesteps the at-counter passport and face check.
Pick the eSIM as your data line and enable data roaming for it so the profile latches onto a Vietnamese network the moment you arrive.
Many Vietnam plans start counting validity when the eSIM first registers on a local network, so switch it on when you land at Noi Bai or Tan Son Nhat, not before.
Every brand earns a score across seven inputs. Coverage and local-network quality draw on public Vietnamese-carrier sources. Speed and reliability draw on public network performance data. Review and FUP signals come from public brand and store pages. No brand can pay to rank higher.
Public Vietnamese-carrier coverage data, mapped across the north, the centre, the Mekong Delta and offshore islands such as Phu Quoc.
Public network performance sources, scoped to Vietnamese cities such as Hanoi, Ho Chi Minh City and Da Nang.
Drop-off, time-to-connect, and uptime signals from public sources.
Clarity of allowance, throttle speed, roaming caps, and hotspot rules on each plan.
Whether hotspot and tethering are allowed and on which Vietnam plans.
Which Vietnamese network the brand rides: Viettel, MobiFone, VinaPhone or Vietnamobile.
App Store, Play Store, and Trustpilot signals, weighted by recency.
Source quality, recency, and number of verified inputs per brand.
Straight answers to what Vietnam-bound travellers ask most. The wording lives in the page itself so both search engines and AI readers can lift it.
Yes, for a local prepaid SIM. Since Decree 49/2017/ND-CP took effect on 24 April 2017, every subscriber must register with identity details, and foreigners specifically must present a valid, unexpired passport, whose number is tied to the SIM at the counter. A travel eSIM bought from an international provider before you fly usually avoids the in-person registration step, but check the provider's own terms.
Under Circular 08/2026/TT-BKHCN, in force from 15 April 2026, new SIM and device registrations require facial-biometric authentication in addition to ID details such as name, date of birth and national identification number, verified through the state VNeID app or the operator, with service liable to suspension until the biometric step is completed. Pre-buying a travel eSIM abroad is the simplest way to sidestep an at-counter face check, subject to the provider's terms.
Not at local rates. Mainland Southeast Asia has no shared roaming union comparable to the EU's "Roam Like At Home", so a Vietnam plan is domestic and would incur international roaming charges, or simply not work, once you cross a border. If you are touring several countries, a multi-country regional eSIM is usually the better fit. Specific roaming terms vary by plan and remain a modelled estimate here.
The three state-owned operators that carry almost the whole market are Viettel, MobiFone and VinaPhone, with Vietnamobile a small fourth. Viettel reports the widest reach, having claimed up to 95 per cent population coverage at its 2017 4G launch, and it made Vietnam's first 5G connection in 2019. Coverage is strongest around Hanoi, Ho Chi Minh City and Da Nang. The local networks table on this page maps each brand to its Vietnamese carrier once that mapping is verified.
5G depends on the Vietnamese network the eSIM rides and whether the plan includes it. Viettel made Vietnam's first official 5G connection on 10 May 2019, and the state carriers have built out service since, with the densest coverage around Hanoi, Ho Chi Minh City and Da Nang. Simscanner publishes a modelled per-brand speed comparison for Vietnam in the speed section.
Buy the plan, then install the eSIM over home Wi-Fi by scanning its QR code or using one-tap install. Leave it set to start on first contact with a Vietnamese network, switch data roaming on for that line, and make it your data line as you land at Noi Bai or Tan Son Nhat. Exact prompts differ by brand and device.
Every factual claim about Vietnam's networks, KYC position, currency, regulator and region on this page is sourced below. Brand plan pricing is sourced per brand where the brand publishes it. All sources retrieved 30 May 2026.
AI-assisted disclosure. This page was drafted with AI assistance and reviewed by the Simscanner editorial team. Every network, KYC, currency, regulator and region claim is cited above with its retrieval date. Brand plan pricing and coverage are sourced; per-brand scores and speeds are Simscanner modelled estimates.
Carry on with a bordering country, the wider region, a leading brand profile, or the way we score.