When I arrived in Vietnam earlier this year, one of my biggest concerns was staying connected. I didn’t want to waste hours at the airport trying to buy a SIM card, nor did I want to rely on hotel Wi-Fi, which can be slow and unreliable. That’s why I decided to try a Viettel eSIM for the first time—and it turned out to be one of the smartest choices of my trip.
Easy Setup, No Waiting in Line
After checking into my hotel in Hanoi, I simply opened the email with my QR code, went to Settings → Add eSIM → Scan QR, and within two minutes my phone was online. No passports, no physical SIM cards, no waiting. Viettel’s coverage kicked in immediately, and I had fast 4G/5G wherever I went.
If you’re planning your own trip, you can learn more here: Viettel eSIM (5GB/day). This guide explains the available plans and how to get started.
How It Helped During My Travels
– In Hanoi Old Quarter – I used it to navigate the busy streets and call a Grab without worrying about dropping offline.
– In Sapa – even in the mountains, I still had data strong enough to share photos and message friends.
– In Da Nang & Hoi An – the speeds were excellent for video calls and uploading content.
– In Phu Quoc – I used it to hotspot my friend’s phone when his roaming failed.
When I Almost Ran Into Trouble
At one point, I accidentally deleted the eSIM profile while switching settings. Luckily, I had saved the QR code in my email, so reinstalling it was easy. Lesson learned: always keep a backup of your activation details.
Why I Recommend Viettel eSIM
– Widest coverage in Vietnam – perfect for both cities and rural areas.
– No paperwork or long queues – everything is handled online.
– Great for dual-SIM users – I kept my home SIM for SMS and calls while using Viettel for data.
– Reliable speeds – I rarely had issues even in remote areas.
Tips Based on My Experience
- Activate your eSIM as soon as you land or even before departure.
2. Save your QR code and activation info in multiple places.
3. Make sure your phone supports eSIM (most iPhones from XR up, Samsung S20+, Google Pixel 4+).
4. Don’t rely only on hotel Wi-Fi; having constant data makes travel smoother.
Final Thoughts
From city streets to mountain trails, the Viettel eSIM kept me connected throughout my Vietnam journey. It saved me time, stress, and even a few arguments with friends when we needed directions fast.
If you’re traveling to Vietnam in 2025, I’d highly recommend considering a Viettel eSIM. It gave me reliable coverage, easy setup, and the peace of mind to focus on enjoying the trip.