Vietnam eSIM for digital nomads: best 30-day plans
Many digital nomads stay in Vietnam for 30 days or longer and need reliable internet without the hassle of finding a physical SIM card at the airport or a local shop. At simvietnam, we offer direct carrier eSIM plans from Viettel and Vinaphone with daily data caps that are well-suited for remote work, video calls, and streaming. You can activate your eSIM before you arrive and have data the moment you land.
Why eSIM is better than physical SIM for a 30+ day stay
An eSIM can be activated before you leave home, so you have working data as soon as you step off the plane in Vietnam. You don’t need to find a telecom counter, negotiate a plan in person, or carry a tiny plastic card that can easily be lost during a month of travel.
Your physical SIM slot stays free for your home carrier’s SIM card. This is essential for receiving SMS from your bank, KakaoTalk verification codes, KakaoBank OTPs, or any two-factor authentication messages while abroad. There is no risk of losing a tiny SIM card during your trip, and installation takes about 60 seconds: scan the QR code we email you while you are still on WiFi at home. No store visit, no paperwork.
Best 30-day eSIM plan for digital nomads: Viettel vs Vinaphone
Our Viettel 30-day plan gives you 5GB of high-speed data per day for USD 15 — that’s $0.50 per day. Viettel is Vietnam’s largest carrier with its own nationwide network, meaning no reseller markup. For most digital nomads working in cities, this plan offers more than enough daily data for maps, messaging, video calls, and occasional streaming.
Our Vinaphone 30-day plan costs USD 16 for the same 5GB/day allowance. It is slightly cheaper per gigabyte in some coastal areas where Vinaphone has strong coverage, such as Da Nang, Nha Trang, and Phu Quoc. After 30 days, you can purchase another eSIM plan easily — there are no contracts or long-term commitments. Both carriers apply a fair-use throttle after you exceed the daily 5GB cap; typical policy reduces speed to around 128–256 kbps until the next day, which is enough for messaging but not for video.
Network coverage for remote work and travel
Viettel claims approximately 99% population coverage (per carrier statements), making it the best choice if you plan trips to mountainous areas like Sapa, Ha Giang, or other rural provinces. For typical digital nomad destinations — Hanoi, Ho Chi Minh City, Da Nang — both Viettel and Vinaphone provide excellent 4G LTE coverage. 5G is available in major city centers but not essential; all major features like Google Maps, Zoom, WhatsApp, and social media work smoothly on 4G.
Vinaphone covers cities and coastal regions well, so if you plan to spend most of your time in Da Nang or on Phu Quoc Island, Vinaphone is a solid choice. Cafés and coworking spaces in tourist hubs usually have WiFi, but having an eSIM provides a reliable backup when you are working from a park, a beach, or a train. For peace of mind, Viettel’s wider rural coverage makes it the safer pick if you travel off the beaten path.
How to install and activate your eSIM
Step 1: Purchase your eSIM online. You will receive a QR code by email within minutes. Step 2: On an iPhone (XS or later), go to Settings > Cellular > Add Cellular Plan. On a Samsung Galaxy (S20 or later), go to Settings > Connections > SIM Card Manager > Add eSIM. On a Google Pixel 3 or later, go to Settings > Network & Internet > SIMs > Add eSIM.
Step 3: Scan the QR code while connected to WiFi. You can do this before your departure (recommended) or after arrival using hotel or airport WiFi. Step 4: When you land in Vietnam, enable the eSIM line in your settings. It will automatically register on the Viettel or Vinaphone network. No physical store visit is required. Activation happens on first network registration — usually within seconds of turning on the line.
Keeping your home number active with dual SIM
The biggest advantage of using an eSIM in Vietnam is that your phone’s physical SIM slot remains free for your home carrier. This lets you keep your existing number active for receiving SMS — essential for banking OTPs, KakaoTalk verification, WhatsApp registration codes, and 3D Secure purchase confirmations. For Korean users, the KT or SKT physical SIM will still receive KakaoBank and banking SMS. Japanese users on docomo, au, or SoftBank can keep their physical SIM for 3D Secure messages.
One important compatibility note: Chinese mainland iPhones (sold in China) do not have eSIM hardware. If you are from mainland China, you will need a phone with dual physical SIM slots — you can use a local data SIM in one slot and keep your home SIM in the other. Alternatively, use a Hong Kong or Macau iPhone model that supports eSIM. For French, Swiss, and other users, you can keep your Free, Bouygues, or Swisscom SIM for banking SMS and WhatsApp verification while the eSIM handles all your data in Vietnam.
FAQ
Can I top up or extend my eSIM after 30 days?
Our 30-day eSIM plans are valid for exactly 30 days from activation and cannot be topped up. However, you can simply purchase another eSIM (same or different carrier) and install the new QR code. The new plan will start when you activate it, so you can have continuous coverage by buying a new eSIM before the current one expires.
Does Vietnam eSIM work on a Chinese iPhone?
No, Chinese mainland iPhones (iPhone XS and later sold in China) do not have eSIM hardware. You cannot use an eSIM on those devices. If you are from mainland China, you will need a phone that supports dual physical SIMs, or use a Hong Kong / Macau iPhone model that includes eSIM capability.
Will I still receive SMS on my home number while using eSIM?
Yes. Since the eSIM uses only your data line, your physical SIM slot remains active for your home carrier. You will receive SMS messages (including banking OTPs, verification codes) as long as your home SIM is inserted and your phone does not have a roaming block. No need to swap SIMs.
What happens if I use all 5GB in one day?
After you use the 5GB daily high-speed data, the carrier throttles your speed to a lower rate (typically around 128–256 kbps) until the next day when your data resets. At throttled speed, you can still use messaging apps and basic web browsing, but video streaming and large file uploads will be very slow. To avoid throttling, manage heavy downloads for times when you have WiFi.
Can I install the eSIM before I fly to Vietnam?
Absolutely. In fact, we recommend installing the eSIM before you leave, while you are still connected to WiFi at home or in your hotel. You will scan the QR code and add the plan to your phone. It will not activate until you arrive in Vietnam and connect to the local network. That way you have zero downtime — data works the moment your plane lands.