The best eSIM for Vietnam in 2026 is Saily. It connects to Viettel, Vinaphone, and MobiFone. This service delivers speeds up to 267 Mbps in tests. It starts at $3.99 for 1GB over 7 days.
Holafly offers unlimited data at $27.30 for seven days.
For budget travelers, Nomad offers 5GB for $10 over 30 days. Airalo is the most popular with plans from $4.
Tired of hunting for a SIM booth at the airport, which wastes time and patience? eSIM solves that; you buy it online, scan a QR code, and you’re connected the moment you land. eSIM offers a fast, convenient alternative for travelers.
With so many providers, choosing the right option can be confusing. This guide cuts through the noise by comparing prices, networks, speeds, and real-world coverage. It helps you pick the best eSIM for your trip to Vietnam, whether you’re in Hanoi, Saigon, or Phu Quoc.
📊 Quick Comparison: Top 5 eSIMs for Vietnam
| Provider | Start Price | Best For | Networks | 5G | Hotspot |
|---|---|---|---|---|---|
| Saily | $3.99 | Overall best, fastest speeds | Viettel, Vinaphone, MobiFone | ✅ | ✅ Unlimited |
| Holafly | $3.90/day | Unlimited data | Vinaphone, Viettel | ✅ | ❌ 500MB–1GB/day cap |
| Airalo | $4.00 | Most popular, city travel | Vinaphone, Viettel | ❌ 4G only | ✅ Unlimited |
| Nomad | $4.00 | Best budget value | MobiFone, Vinaphone | ❌ | ✅ |
| Ubigi | $6.90 | Reliable coverage | Vinaphone | ✅ | ✅ Unlimited |
Check current hotel prices after you’ve sorted your connectivity.
🥇 Saily — Best Overall, Fastest Speeds
Saily is built by the team behind NordVPN and is our top pick for Vietnam. It’s the only major eSIM that connects to all three Vietnamese networks — Viettel, Vinaphone, and MobiFone — meaning your phone automatically switches to the strongest signal. In speed tests, Saily peaked at 267 Mbps in Hanoi, ahead of all competitors.
Plans:
- 1GB / 7 days: $3.99
- 3GB / 30 days: $7.99
- 5GB / 30 days: $13.99
- Unlimited / 15 days: $48.99 — 5GB/day at full speed, then 1 Mbps
Pros: Fastest speeds, all three networks, security features (ad blocker, malicious site protection, virtual location).
Cons: Unlimited plans throttle after 5GB/day; data-only (no calls or texts).
🥈 Holafly — Best for Unlimited Data
Holafly is the best choice if you need unlimited data without worrying about running out. It runs on Vinaphone and Viettel networks, offering reliable 4G/5G coverage across major cities.
Plans (unlimited data):
- 5 days: $19.50
- 7 days: $27.30
- 10 days: $36.90
- 15 days: $50.90
- 20 days: $61.89
- 30 days: $74.90
Pros: Truly unlimited data, no speed throttling, 24/7 customer support, flexible plans from 1 to 90 days.
Cons: Hotspot limited to 500MB–1GB/day; more expensive than fixed-data plans; data-only (no calls or texts).
🥉 Airalo — Most Popular, Budget-Friendly
Airalo is the world’s largest eSIM marketplace and the default choice for many travelers. It offers reliable 4G connectivity in cities and tourist areas, connecting to Vinaphone and Viettel.
Plans:
- 1GB / 3 days: $4.00
- 5GB / 15 days: $11.00
- 5GB / 30 days: $11.50
- 10GB / 30 days: $20.00
- 20GB / 30 days: $30.50
Pros: Affordable, easy app management, works in 200+ countries, pay-as-you-go, reliable in cities.
Cons: 4G only (no 5G); less reliable in remote areas like Sapa or Ha Giang.
💰 Nomad — Best Budget Value
Nomad frequently undercuts competitors on price, especially for 10–15GB tiers. It’s a solid choice for budget-conscious travelers who don’t need unlimited data or a Vietnamese phone number.
Plans:
- 1GB / 7 days: $4.00
- 3GB / 30 days: $8.00
- 5GB / 30 days: $10.00
- 10GB / 30 days: $17.00
- Unlimited / 5 days: $18.00 (throttles after 2GB/day)
Pros: Great value, free 500MB trial for new users, easy top-ups, instant activation.
Cons: Data-only (no calls or texts); some plans throttle after daily limits.
🌐 Which Network Matters — Viettel vs Vinaphone vs MobiFone
Viettel is Vietnam’s largest network with approximately 54% market share and the widest coverage, especially in rural areas, mountains, and islands. If you’re visiting Sapa, Ha Giang, the Mekong Delta, or Phu Quoc, choose an eSIM that connects to Viettel.
Vinaphone is strong in cities and along tourist routes — Hanoi, Ho Chi Minh City, Da Nang, and Hoi An — but weaker in remote areas.
MobiFone is reliable in urban areas but has the weakest rural coverage of the three.
Which providers use which networks?
- Viettel + Vinaphone + MobiFone: Saily
- Viettel + Vinaphone: Airalo, Holafly, Ubigi
- Vinaphone only: Some smaller providers
📱 Local Carrier eSIM — Cheaper, But More Friction
If you’re staying in Vietnam for more than two weeks or need a Vietnamese phone number, a local Viettel tourist eSIM is cheaper — around $8–14 for 15–30 days. However, you’ll need to register your passport (via app or at a store), and the buying process is clunkier.
When to choose local: Long stays (30+ days), if you need a Vietnamese number for Xanh SM, MoMo, or bank OTPs, or if you’re traveling to remote areas where Viettel coverage matters most.
When to choose international eSIM: Short trips (1–2 weeks), if you want data working the moment you land, or if you prefer an English interface and zero paperwork.
📌 Practical Tips
- Install before you fly: Most plans start when you connect to a Vietnamese network. Install at home to save time.
- Check compatibility: Your phone must be carrier-unlocked and eSIM-compatible. iPhones from XR onward and most flagship Android phones from 2019 onward support eSIM.
- Keep your home SIM active: eSIM works alongside your physical SIM. Keep your home SIM for calls and SMS, use eSIM for data.
- Don’t delete your eSIM before your trip ends: Deleting it resets the QR code and you’ll lose access to your plan.
❓ Frequently Asked Questions
Is eSIM cheaper than a physical SIM in Vietnam?
A local physical SIM is cheaper — around $5–10 for 30 days. But eSIM is more convenient, especially for short trips (under 2 weeks).
Which eSIM has the best coverage in Vietnam?
Saily — it’s the only major eSIM that connects to all three networks (Viettel, Vinaphone, MobiFone).
Can I get a Vietnamese phone number with an eSIM?
No — most international eSIMs are data-only. If you need a Vietnamese number, buy a local Viettel or Vinaphone eSIM after arrival.
What’s the best eSIM for Phu Quoc?
Saily (Viettel network) has the strongest signal on the island, including Hon Thom Island.
Can I use eSIM with Grab?
Yes — Grab works with any data connection, regardless of country. You don’t need a Vietnamese number for Grab.
💎 Final Verdict
For most travelers, Saily is the best option — fastest speeds, all three networks, and competitive prices. If you want unlimited data, choose Holafly. If you’re on a tight budget, choose Nomad or Airalo. If you’re staying longer than two weeks, buy a local Viettel eSIM after arrival.
Once you’ve sorted your connectivity, the rest of Vietnam is waiting. Check out my detailed guides to Hon Thom Island, Sunset Town, and Grand World to start planning your trip.
🏨 Where to Stay & What to Pair It With
Once you’ve sorted your connectivity, it’s time to book your accommodation. You’ll find everything from budget guesthouses to luxury resorts across Vietnam — check hotels in Vietnam to compare prices and read guest reviews. For a broader overview, I’ve put together guides to the best hotels on Phu Quoc, best hotels in Da Nang, and best hotels in Nha Trang if you’re still deciding where to base yourself.
Pair your trip with a visit to Ngoc Hien Pearl Farm for a unique cultural experience, or Sim Sơn Winery for a taste of Phu Quoc’s famous sim wine. For a full day of adventure, combine it with VinWonders and Safari — the park is one of the island’s top attractions.
