Best eSIM for Vietnam: Tested Plans, Prices & What Actually Works

I landed at Tan Son Nhat in Ho Chi Minh City last November with zero mobile data. No Grab. No Google Maps. Just a dead screen and a taxi queue snaking around the arrivals hall. Twenty frustrating minutes later, I was paying double for a cab because I couldn’t pull up the fare estimate. That trip taught me a lesson I won’t forget: get your Vietnam eSIM sorted before you board the plane. Finding the best eSIM for Vietnam isn’t hard once you know what to look for.

Since then, I’ve tested five different eSIM providers across three separate Vietnam trips—from the chaos of Hanoi’s Old Quarter to lantern-lit evenings in Hoi An, beach days in Da Nang, and even a motorbike run up near Sapa. I work in finance at BazTel, an eSIM provider, so I get nerdy about data plans and pricing. But I’m also a traveller who just wants things to work.

This guide covers the best eSIM for Vietnam based on my actual experience. I’ll compare Vietnam eSIM plans, prices, and real-world coverage so you can stay connected across every stop on your itinerary. Whether you need unlimited data for video calling or just a couple of gigabytes for Google Maps and messaging apps, I’ve got you covered. By the end, you’ll know exactly which eSIM for Vietnam suits your travel style and budget.

Why a Vietnam eSIM Beats a Physical SIM Card

Let me be direct. A physical SIM card still works fine in Vietnam. Viettel, Vinaphone, and Mobifone all sell cheap prepaid cards at major international airports in Hanoi and Ho Chi Minh City. A local SIM with 10GB might cost you around 200,000 VND (roughly $8 USD).

But there’s a catch. Vietnam now requires passport registration for physical SIM card purchases. That means queuing at an airport counter, handing over your passport, and hoping the staff can walk you through activation. I’ve watched friends waste 45 minutes at Hanoi airport doing exactly this.

A digital SIM card eliminates all the difference. You buy it online, install it before your flight, and connect instantly when you land. No swapping sim cards, no fumbling with a SIM ejector pin, and your existing SIM stays active for banking and messaging. The key benefits of eSIM technology become obvious when you’re travelling—easy setup, flexible plans, and no plastic to swap out. Most travel eSIMs are data only, which means you’ll use WhatsApp, FaceTime, or other messaging apps for phone calls and video calling. Honestly, that’s how most of us communicate anyway. An eSIM for Vietnam lets you stay connected from the moment you clear customs.

The Convenience Factor That Changed My Mind

On my most recent trip, I set up my eSIM on the flight from Sydney. When the plane touched down in Ho Chi Minh City, my phone connected automatically to the local network. I booked a Grab before I even cleared immigration. That kind of instant delivery of internet access—stepping off the plane and being online—is something a physical sim simply can’t match.

eSIMs also let you share data with other devices via hotspot capabilities. I was tethering my laptop at a café in Da Nang to catch up on work emails. Try doing that with a freshly purchased airport SIM when you’re not sure if hotspot is even enabled.

Best eSIM Providers for Vietnam: My Honest Comparison

I’ve narrowed this down to three providers worth your attention for a Vietnam eSIM: BazTel, Airalo, and Saily. There are dozens of eSIM providers out there, but these three consistently deliver reliable coverage, transparent pricing, and hassle-free setup across Vietnam. Each offers a range of Vietnam eSIM plans to help you stay connected whether you’re on a weekend city break or a month-long backpacking route.

Feature	BazTel	Airalo	Saily	Holafly	Orbit Mobile
5GB / 30 days	$6.00	$11.50	$10.99	N/A	$10.00
10GB / 30 days	$12.00	$20.00	$17.99	N/A	$20.00
20GB / 30 days	$21.00	$30.50	$28.99	N/A	$27.50
Unlimited / 7 days	N/A	N/A	Available	$29.90	N/A
Network	Vietnamobile / Vinaphone	Viettel / Vinaphone	Not disclosed	Vinaphone / Mobifone / Viettel	Not disclosed
Hotspot	Yes	Yes	Yes	Limited	Yes
24/7 Support	Yes	Yes	Yes	Yes	Limited

Prices as of March 2026, in USD. Subject to change. Check each provider’s website for current rates.

BazTel – Best Value and Easiest Setup

Full disclosure: I work at BazTel. But the numbers speak for themselves. At $6 for 5GB and $12 for 10GB, BazTel is the cheapest option at every data tier compared to both the Airalo eSIM and Saily’s eSIM plans. The 20GB data plan costs $21—nearly $10 less than Airalo’s equivalent.

What sets BazTel apart is the installation process. Most eSIM providers still rely on QR code scanning. BazTel has moved beyond that. After you purchase your eSIM for Vietnam, it appears on your online dashboard. You click one button—there’s one designated for iPhone, another for Android—and the eSIM installs directly onto your phone. No QR code. No app download. No second device needed to scan anything.

I tested this on a flight from Sydney. Connected to the plane’s Wi-Fi, logged into my dashboard, tapped install. Done. The entire process took under two minutes. When I landed at Tan Son Nhat, my phone picked up reliable mobile data immediately.

BazTel also offers 24/7 customer support, a refund if you’re not satisfied, and a trip cancellation guarantee. That last one is underrated. If your Vietnam trip falls through, you’re not stuck with an unused eSIM. Oh, and if you just want to test it before committing? Try the 1GB plan for $1. It’s a low-risk way to see how reliable the coverage is before you buy a bigger data plan.

Airalo eSIM – Solid Coverage, Higher Prices

Airalo is probably the most recognised name in the eSIM space. They’ve been around since 2019, and their app is polished. If you want a deeper look at its strengths and weaknesses, my in-depth Airalo eSIM review covers pricing, coverage, and real user feedback. For Vietnam, the Airalo eSIM connects to Viettel and Vinaphone—the two strongest networks in the country. That Viettel connection is a genuine advantage if you’re heading to remote areas like Ha Giang or Sapa.

The downside? Price. A 10GB data plan on Airalo costs $20 for 30 days. BazTel offers the same amount of data for $12. That’s a $8 difference—enough for a bowl of pho and a Vietnamese iced coffee at most places in Hanoi. Airalo also provides regional plans covering multiple countries in Southeast Asia, which is handy if your trip extends to Cambodia or Thailand, while BazTel’s global eSIM plans for multi-country travel are worth a look if Vietnam is just one stop on a longer itinerary. And if you’re continuing overland, BazTel’s eSIM for Cambodia lets you stay connected across the border without hunting for a new physical SIM. If you’re comparing eSIM for Vietnam options purely on affordable pricing, Airalo falls behind BazTel at every tier.

Installation uses the traditional QR code method through the Saily app—sorry, through the Airalo app. It’s straightforward, but you’ll need a second device or a printout of the QR code to scan it.

Saily’s eSIM – Great Features, Mid-Range Pricing

Saily is backed by Nord Security, the team behind NordVPN. That pedigree shows. Saily’s plans include extra security features like a built-in ad blocker and web protection. If you’re connecting to wi fi at random cafés across Ho Chi Minh City, that’s a nice layer of protection, and my full Saily eSIM review digs into how those features work in real travel scenarios.

Saily partners with local providers in Vietnam to deliver reliable coverage across major cities and popular tourist destinations. Saily’s eSIM works well in Hanoi, Da Nang, Hoi An, and Ho Chi Minh. Coverage in very remote areas like Ha Giang can vary, but that’s true for virtually every provider.

Pricing sits between BazTel and Airalo. Saily’s plans start at $3.99 for 1GB (7 days) and go up to $28.99 for 20GB (30 days). The Saily app handles activation and management smoothly, making it easy to track your remaining data. You can also use the eSIM for hotspot capabilities without hotspot restrictions, which is valuable for sharing data with a laptop or tablet. Saily’s Vietnam eSIM plans represent solid mid-range eSIM plans for anyone who wants a balance of features and cost, and if you’re torn between providers, a direct comparison of Saily vs Airalo can help you decide which suits your route and budget.

Holafly – Unlimited Data With a Catch

Holafly offers unlimited plans for Vietnam starting at $29.90 for 7 days. Sounds fantastic on paper. The catch is their fair usage policy. After heavy data usage, speeds can throttle significantly. Holafly also doesn’t allow hotspot sharing on most unlimited data plans. If you need to tether your laptop, this is a dealbreaker. Some travellers prefer Holafly’s unlimited data for peace of mind, but look closely at the restrictions before committing.

Unlimited data makes sense for heavy users who stream video, do video calling all day, or upload content constantly. But for most travellers navigating Ho Chi Minh City with Google Maps and checking messaging apps, a fixed data plan from BazTel or Saily offers better value. If you want to stay connected with unlimited data at affordable pricing, compare plans carefully—the fair usage policy limits can be frustrating.

How Much Data Do You Actually Need in Vietnam?

This is the question I get asked most. Here’s a rough breakdown from my own data usage across multiple Vietnam trips.

Google Maps uses about 5-10MB per hour of navigation. Over a full day exploring multiple cities, that’s maybe 50-80MB. Messaging apps like WhatsApp use very little—around 30MB per day for regular texting with some photos. Video calling on WhatsApp or FaceTime consumes around 300MB per hour. Social media browsing eats roughly 100-200MB per hour depending on how much video you’re watching.

For a typical week-long trip where you’re using Google Maps daily, checking messaging apps, browsing social media for an hour, and making just a couple of video calls home? You’re looking at around 3-5GB total. A two-week trip across multiple cities—Hanoi, Hoi An, Da Nang, Ho Chi Minh City—with heavier usage might need 8-12GB.

My recommendation: grab BazTel’s 10GB plan for $12. It covers 30 days, handles more data than most people use, and costs less than a decent bánh mì lunch in Sydney. If you’re a heavy user who needs reliable data for remote work, go with the 20GB data plan. Either way, a good eSIM for Vietnam means you stay connected without constantly hunting for wi-fi.

eSIM Coverage Across Vietnam: City by City

Vietnam’s mobile infrastructure is surprisingly good. In major cities, you’ll get fast 4G LTE with download speeds that rival many Western countries. 5G is rolling out in Hanoi and Ho Chi Minh City, though coverage is still patchy. Here’s what I experienced across different destinations.

Hanoi and Ho Chi Minh City

Zero issues. Both cities offer rock-solid reliable coverage from every provider I tested. I used Google Maps constantly to navigate Hanoi’s Old Quarter—those streets are a beautiful maze, and you will get lost. In Ho Chi Minh City, I needed reliable mobile data for Grab rides, finding restaurants, and video calling my family back in Australia. Coverage was excellent throughout District 1, Thảo Điền, and even the outskirts near Củ Chi.

Da Nang and Hoi An

Da Nang is Vietnam’s third-largest city, and the internet connection there is fast and stable. I worked remotely from cafés along My Khe Beach for three days without a single drop. Hoi An, just 30 minutes south, was equally reliable. Walking through the Ancient Town at night with lanterns glowing, I was uploading photos to Instagram without any lag. Reliable connectivity in Hoi An was essential for navigation too—the streets all look similar after dark.

Sapa and Ha Giang – The Remote Areas Test

This is where things get interesting. Sapa town itself has decent coverage from most eSIM providers. But once you head into the surrounding rice terraces or up toward Ha Giang, signal quality depends heavily on which network your eSIM connects to.

Viettel has the strongest rural coverage in Vietnam. It’s military-owned, which means infrastructure extends to remote regions and border zones. If your itinerary includes very remote areas, prioritise an eSIM provider that connects to Viettel. The Airalo eSIM connects to Viettel, giving it an edge in remote areas. Other providers may rely on Vinaphone, which covers about 90-95% of what Viettel does but can struggle in the most mountainous terrain.

In remote regions like the Ha Giang Loop, expect slower upload speeds and occasional signal drops regardless of provider. This isn’t a provider issue—it’s geography. Download what you need for offline use before heading into the mountains.

How to Set Up Your Vietnam eSIM (Step by Step)

Setting up a Vietnam eSIM is simpler than most people expect. The whole process takes five minutes or less. Here’s what to do.

Before You Fly

First, check that your phone is eSIM compatible. Most phones from 2018 onward support eSIM, including iPhone XS and later, Samsung Galaxy S20 and later, and Google Pixel 3 and later. If you’re still using a physical SIM, a step-by-step guide to converting SIM to eSIM can walk you through the switch before your trip. Your phone also needs to be an unlocked phone—carrier-locked devices may not accept an eSIM from a third-party provider.

Go to your phone’s settings to verify. On iPhone, check Settings > General > About and look for a Digital SIM section. On Android, look for SIM Manager under Connections.

Purchase and Install

With BazTel, the process is streamlined. Visit baztel.co, choose your Vietnam eSIM data plan, and complete payment. Your eSIM appears instantly on your online dashboard. Click the installation button for your device—iPhone or Android—and the eSIM installs directly. No QR code required.

With other eSIM providers like Airalo or Saily, you’ll typically download their app, purchase a plan, and receive a QR code. Scan the code in your phone’s settings to install the eSIM profile—if you’ve never done this before, a quick guide on how to get and use an eSIM QR code can be helpful. You’ll need Wi-Fi or another internet connection to complete installation.

Activation on Arrival

Once your Vietnam eSIM is installed, enable data roaming in your phone’s settings. This is crucial—without data roaming switched on, the eSIM won’t connect to local networks. Don’t worry, enabling data roaming on your eSIM line doesn’t trigger roaming charges from your home carrier. The eSIM for Vietnam handles all your mobile data through its own data plan.

When you land in Vietnam, turn off airplane mode. Your phone should pick up the local network and connect automatically within seconds. Set the eSIM as your primary data line, and keep your existing SIM active for phone calls, texts, and banking verification codes.

Practical Tips to Stay Connected Across Vietnam

Use Wi-Fi Where Available

Vietnam has solid wi-fi in most hotels, cafés, and co-working spaces. Use it to conserve your mobile data for when you’re on the move. That said, wi-fi quality varies—some budget hostels have connections that feel like dial-up. Your eSIM serves as reliable backup internet access when wi-fi isn’t cutting it.

Download Maps Offline

Even with reliable service, it’s smart to download offline maps for your key destinations. Google Maps lets you save areas for offline use. This is especially valuable in remote areas where signal might dip. I downloaded maps for Da Nang, Hoi An, and the road between them—saved me plenty of stress.

Monitor Your Data Usage

Check your data usage regularly in your phone’s settings. It’s easy to burn through more data than you expect, especially if you’re sharing photos, making voice calls through apps, or scrolling social media. If you run low, most providers let you top up or purchase additional data.

Keep Your Home SIM Active

This is something many travellers overlook. Your home SIM card handles bank OTPs, two-factor authentication, and iMessage. Keep it in your phone alongside the Vietnam eSIM. Modern phones support dual SIM functionality—use your eSIM for mobile data and your physical sim for everything else. It’s the smartest way to stay connected for both data and security.

Common Questions About Vietnam eSIM Plans

Which eSIM Provider Offers the Best Value for Vietnam?

BazTel offers the best eSIM for Vietnam when it comes to affordable pricing. At $6 for 5GB and $12 for 10GB, it undercuts both Airalo and Saily at every data tier. Combined with one-click installation and 24/7 support, BazTel delivers excellent value for most travellers.

Can I Use an eSIM for Phone Calls in Vietnam?

Most Vietnam eSIM plans are data only. You won’t get a local phone number for traditional phone calls or SMS. Instead, use WhatsApp, Telegram, or FaceTime for voice calls and video calling. If you absolutely need a local Vietnamese number for Grab verification or hotel bookings, consider a physical sim from a local provider alongside your eSIM.

Is the eSIM Reliable in Rural Vietnam?

In major cities and popular tourist destinations—Hanoi, Ho Chi Minh City, Da Nang, Hoi An, Nha Trang—yes, absolutely. Reliable coverage is consistent across providers. In remote regions like Ha Giang, Sapa outskirts, and the Mekong Delta, coverage depends on which local network your eSIM connects to. Providers using Viettel have the best reach in remote areas.

Do I Need an Unlocked Phone for eSIM?

Yes. Your phone must be both eSIM compatible and carrier-unlocked. Check your phone’s settings or contact your carrier to confirm. Most phones purchased outright are already unlocked.

Can I Share My eSIM Data With Other Devices?

Most eSIM providers allow hotspot tethering. BazTel, Airalo, and Saily all support hotspot capabilities without hotspot restrictions. Holafly limits hotspot on its unlimited plans. You can share data with a laptop, tablet, or other devices—handy for working remotely or giving a travel companion internet access. If you’re visiting multiple countries, look into regional plans that cover Southeast Asia.

How Do I Know If My Phone Supports eSIM?

On iPhone, go to Settings > General > About. Look for an EID number or a Digital SIM IMEI. On Samsung, check Settings > About Phone > Status > IMEI information. If you see an eSIM IMEI, your device supports it. Most phones from 2019 onward are eSIM compatible.

Should I Buy My Vietnam eSIM Before or After Arrival?

Before. Always before. Buy and install your eSIM for Vietnam while you still have a stable internet connection at home. Local providers in Vietnam don’t currently offer eSIMs directly to tourists—they only sell physical SIM cards. Third-party eSIM providers like BazTel, Airalo, and Saily are your best options, and all let you connect instantly upon landing. Having your Vietnam eSIM ready means you stay connected from the first minute.

What Happens if I Run Out of Data?

Most providers let you purchase more data or buy a new plan. With BazTel, you can grab an additional data plan directly from your dashboard. No need to uninstall and reinstall. Alternatively, hotel and café wi fi can bridge the gap while you sort a top-up.

My Final Recommendation: The Best eSIM for Vietnam

After testing multiple esim providers across major cities, remote areas, and everything in between, here’s my honest take. The best eSIM for Vietnam depends on your priorities, but one thing is clear: having a Vietnam eSIM is non-negotiable for modern travel.

For most travellers: BazTel

It’s the cheapest option at every data tier, the one-click dashboard installation is genuinely easier than scanning QR codes, and the 24/7 support plus refund guarantee removes risk. Start with the $1 trial (1GB) if you want to test reliable connectivity before committing to a bigger data plan. The affordable pricing makes BazTel the best value eSIM for Vietnam. Visit baztel.co to get started.

For remote area travellers: Airalo eSIM

If your Vietnam itinerary goes deep into Ha Giang, the Mekong Delta, or off-the-beaten-path destinations, Airalo’s Viettel connection gives you the strongest reliable connection in remote regions. You’ll pay more per gigabyte, but reliable data in the mountains is worth the premium. Airalo’s regional plans also cover multiple countries if you’re hopping between Southeast Asian destinations.

For security-conscious travellers: Saily’s eSIM

The extra security features, ad blocking, and NordVPN backing make Saily’s plans appealing if you’re frequently using public wifi networks. Saily’s eSIM pricing falls in the middle, and reliable coverage across Vietnam is strong. Download the Saily app before you travel to manage your eSIM plans easily.

For unlimited data needs: Holafly

If you genuinely need unlimited data for streaming or constant video calling, Holafly is the simplest unlimited plans option. Just know about the fair usage policy and hotspot restrictions.

Vietnam is an incredible country to explore. From the street food stalls of Hanoi to the lanterns of Hoi An, the beaches of Da Nang, and the energy of Ho Chi Minh City, staying connected makes all the difference. If your trip also includes a stop in Sydney or Melbourne, it’s worth checking the best eSIM plans in Australia for travellers, and the top travel eSIM options for the United States if you’re heading there too. Pick the right Vietnam eSIM, set it up before you fly, and you’ll step off the plane ready to explore. With the right eSIM for Vietnam in your pocket, you’ll never have to worry about losing your internet connection mid-trip. Stay connected and enjoy every moment.