The best eSIM for Vietnam, and we retested 20+ on our 2-week trip in June 2026, is Saily. It held 5G across Hanoi and Da Nang, our test regions, with plans scaling to unlimited data. There’s a technical reason it came out on top: Saily reaches all three Vietnamese operators, MobiFone, Viettel and Vinaphone, while most rivals here ride Vinaphone alone. That showed up in our speed tests. Our other top picks are Ubigi, Holafly, Airalo and Jetpac, each with distinct strengths.
Best Vietnam eSIM: Top 5 eSIMs for Speed, Coverage, and Easy Setup in 2026
Best eSIM for Vietnam: Detailed Comparison
Here’s what our two-week trip to Da Nang and Hanoi revealed after retesting 20+ eSIMs. We judged each on 5G coverage, network access, setup and price. Our top pick, Saily, starts at $3.39 with the promo code, so let’s start there.
| Saily 🥇 | Ubigi 🥈 | Holafly 🥉 | Airalo | Jetpac | |
| Start Price | $3.39 (with GIZMODO) | $6.90 | $3.90/day | $4.00 | $4.00 |
| Network Partner | MobiFone, Viettel, Vinaphone | Vinaphone (VNPT) | Vinaphone (VNPT) | Vinaphone (VNPT) | MobiFone, Vinaphone, Viettel |
| 5G Support | Yes ✅ | Yes ✅ | Yes ✅ | No ❌️ (4G only) | Mostly 4G |
| Peak Speed (Hanoi) | 267 Mbps | 251 Mbps | Close to Saily | 134 Mbps avg | 128 Mbps avg |
| Data Sharing | Unlimited | Unlimited | 500 MB/day | Unlimited | Unlimited |
| Unlimited Fine Print | 5 GB/day, then 1 Mbps | No speed cap | No speed cap | No speed cap | No speed cap |
| Security Features | Ad blocker, malicious URL blocker, 115+ virtual locations | Encrypted connection | No ❌️ | No ❌️ | No ❌️ |
| Validity | 5-30 days | 7-30 days | 1-30 days | 3-30 days | 3-30 days |
1. Saily: Best 5G eSIM for Vietnam
Pros
- All three Vietnamese networks
- The fastest in our tests, at 267 Mbps
- Cheapest entry plan at $3.39
- Blocks ads to save data
Cons
- Unlimited plans throttle after 5 GB a day
- Pricier unlimited data
Our #1 eSIM for Vietnam was the best performer in our tests, and the reason is structural. Saily connects to MobiFone, Viettel and Vinaphone, all three national operators, so the phone takes whichever signal is strongest. Ubigi, Holafly and Airalo all sit on Vinaphone alone. That’s why Saily peaked at 267 Mbps in Hanoi during busy hours, ahead of everyone.
We had constant 5G in Da Nang and Hanoi, and zero connection issues over two weeks. Netflix in Full HD played with no long buffering, and video calls were smooth throughout.
It’s affordable too, starting at $3.99 for 1 GB over 7 days, or $3.39 with the GIZMODO code. Plans run to 30 days, and we took the unlimited plan for 15 days at $48.99, which the code brings to $41.64.
One thing to read before buying unlimited: you get 5 GB per day at full speed, then stay online at 1 Mbps. Fine for maps and messaging, less so for a fortnight of streaming. It’s the single reason Holafly earns a place below.
💰 Savings Alert: You can drop 15% off every Saily plan with the promo code GIZMODO in July 2026. For more information, read our Saily Coupon Code guide.
Saily also bundles security nobody else here offers: 115+ virtual locations, an ad blocker that saves data, and a malicious URL blocker. NordVPN itself comes with the Ultra plan. In 2026 the app added airport lounge access and fast-track passes at checkout, and Saily was named “Rising Star” at the MVNOs World Congress in Amsterdam in June. Its 24/7 live chat sits inside the app, and there’s a refund policy if the eSIM doesn’t work for you.
2. Ubigi: Solid Coverage in Vietnam
Pros
- 5G coverage across Vietnam
- One-off and renewing monthly plans
- Affordable unlimited data
- 24/7 customer support
Con
- Vinaphone only, and a step behind Saily
Our recent Ubigi review praised its speed, reliability and setup. Two weeks in Vietnam’s most densely populated regions produced zero connection issues, and we were mostly on 5G. That meant smooth streaming and clean VoIP calls on WhatsApp and Viber, our two test apps.
Ubigi’s main advantage is flexibility. There’s a one-off plan, which we tested (3 GB for 15 days at $6.90), and a monthly plan with 20 GB at $19 that renews automatically. Unlimited data starts at just $24.90 for 7 days. Data sharing is unlimited on every plan, and support runs 24/7.
On paper Ubigi has everything it needs to top this list. In practice, it isn’t quite as fast as Saily. In Hanoi we measured a peak of 267 Mbps during busy hours (8 to 9 pm) with Saily, against Ubigi’s 251 Mbps on Vinaphone. The gap is small, and it comes down to the same thing: Ubigi has one network to work with, Saily has three.
3. Holafly: Unlimited Data With No Throttling
Pros
- Unlimited data with no speed cap
- Instant activation
- Support replies in 20 seconds
- 200+ countries covered
Cons
- 500 MB/day tethering
- Vinaphone only
Holafly is a solid Vietnam eSIM if you’ll accept nothing but unlimited data, since there’s no option below it. A day costs $3.90, and the rate falls the longer you stay. We bought 15 days at $50.90, and Holafly’s performance was almost on par with Saily.
Here’s why it matters more than the price. Holafly’s unlimited data has no daily allowance and no speed cap at any point, unlike Saily, which throttles to 1 Mbps after 5 GB a day. Over a fortnight of heavy streaming, that’s the difference.
Coverage is mostly 5G, though dips to LTE were more frequent in Da Nang, roughly a 50-50 split by our reckoning. We never had an actual problem, and Netflix and Viber calls always worked. It activates the moment you land, and the iOS and Android apps let you extend a plan mid-trip.
Support is its other strength. Live chat, 24/7, answering in 20 seconds at most. The one real disappointment is tethering, capped at 500 MB per day, which rules out group travel on a single plan.
4. Airalo: Cheap, but 4G Only
Pros
- Reliable 4G connections
- Cheapest 10 GB plan at $15.50
- No limits on data sharing
Cons
- Slowest customer support
- Only 4G data in Vietnam
Airalo is a mid-range eSIM for Vietnam with solid coverage and stable connections, but 4G only. It’s naturally slower than Saily and Ubigi, though less so than we expected: across Da Nang and Hanoi we averaged 134 Mbps on Vinaphone, close to LTE’s ceiling. That was plenty for calling and streaming.
We ran on its 10 GB plan for 15 days at $15.50, and the cheapest is 1 GB over 3 days at $4. Unlimited plans start at $10.50 for 3 days. Data sharing is uncapped, and we leaned on it hard, running all three of us off a single eSIM.
The weak point is support. We reached it by live chat and waited three minutes, where Holafly answered in around 20 seconds. Airalo is still excellent value, and it remains one of the strongest options in our best eSIM for Asia guide for anyone hopping between countries.
5. Jetpac: Free Data (WhatsApp/Maps/Uber) + Lounge Access
Pros
- Three networks, like Saily
- Free data for essential apps
- Lounge access (1-6 people)
Cons
- Not the fastest eSIM for Vietnam
- Mostly relies on 4G
We didn’t test Jetpac’s lounge add-on, but it’s unique here and genuinely useful if a flight slips: lounge access for one to six people while you wait it out. We did test its unlimited data plan for 15 days at $41.99.
Like Saily, Jetpac reaches MobiFone, Vinaphone and Viettel, all three operators, which is more than Ubigi, Holafly or Airalo manage. It leans mostly on 4G, though, where we averaged “only” 128 Mbps on Vinaphone. Slower than the top three, but still quick: Netflix in Full HD never buffered and VoIP calls were clean. Jetpac starts at $4 for 1 GB over 4 days, ideal for a short stay.
Every tier is customizable, from 3 GB to 5 GB to 15 GB, depending on trip length. Jetpac also includes free data for Grab, Uber, WhatsApp Chat and Google Maps, which keeps working after your allowance runs out. Tethering is unlimited, and its 24/7 multi-channel support answers quickly by email, WhatsApp or live chat.
Summary: What is the Best eSIM for Vietnam in 2026?
Install it before you fly: Saily, Ubigi, Holafly, Airalo and Jetpac don’t start counting until you connect to a Vietnamese network, so there’s no reason to wait. Far better than fumbling with a QR code at Noi Bai while the immigration line moves on without you.
Saily is the one to buy for most travelers: three networks behind it, the fastest speeds we recorded, the cheapest entry at $3.39, and security tools nobody else bundles. If you’re streaming heavily, take Holafly instead, since its unlimited data never throttles. Heading somewhere else after Vietnam? Our top eSIMs for international travel support over 200 countries, with per-country, global and regional plans.
Try Saily: #1 eSIM for Vietnam
Frequently Asked Questions
What is the best eSIM for Vietnam?
Saily is the best eSIM for Vietnam overall. It reaches all three Vietnamese operators, MobiFone, Viettel and Vinaphone, which is why it peaked at 267 Mbps in Hanoi, faster than anything else we tested. Plans start at $3.99, or $3.39 with the GIZMODO code, with unlimited data for 15 days at $48.99 ($41.64 discounted).
Which networks do Vietnam eSIMs use?
Vietnam has three main operators: MobiFone, Viettel and Vinaphone (VNPT). Saily and Jetpac reach all three, so your phone takes whichever signal is strongest. Ubigi, Holafly and Airalo all run on Vinaphone alone, which explains the speed gap we measured between Saily and the rest.
Which eSIM has truly unlimited data in Vietnam?
Holafly. Its unlimited plans have no daily allowance and no speed cap at any point, which makes it the pick for heavy streamers. Saily’s unlimited plans give you 5 GB per day at full speed and then throttle to 1 Mbps, which is fine for maps and messaging but limiting over a two-week trip.
Which eSIM supports 5G in Vietnam?
Saily, Ubigi and Holafly all deliver 5G. Airalo is limited to 4G, where we averaged 134 Mbps, and Jetpac leans mostly on 4G at around 128 Mbps. Both are still fast enough for Full HD streaming and video calls, but the top three are noticeably quicker.
What is the cheapest eSIM for Vietnam?
Saily, at $3.39 for 1 GB over 7 days with the GIZMODO code. Airalo and Jetpac both start at $4, Holafly at $3.90 for a day of unlimited data, and Ubigi at $6.90 for 3 GB over 15 days.
Can I share my eSIM data with other devices in Vietnam?
Saily, Ubigi, Airalo and Jetpac all allow unlimited tethering, so one plan can cover a group. We ran three phones off a single Airalo eSIM. Holafly is the exception, capping hotspot use at 500 MB per day, which means one plan per person.