vietnam travel guide3 min read

Do I Need Wi-Fi in Vietnam 2026? eSIM vs Pocket Wi-Fi

A practical guide comparing eSIM plans for Vietnam with pocket Wi-Fi and carrier roaming, covering how to get online, plan selection, local networks, and more.

Reviewed by · Last updated 2026-08-29

How Does Getting Online with eSIM Work?

To get online in Vietnam with eSIM, you simply install the eSIM on your device before you travel. Once activated, your device will automatically connect to local networks like Vietnamobile or VinaPhone. This means you can start using data as soon as you land, without any additional setup. For example, if you land in Ho Chi Minh City and need to book a ride, your eSIM will already be connected. However, ensure your device is unlocked and supports eSIM technology, as not all devices are compatible.

Which Plan Shape Should I Pick: Daily or Total?

Choosing between daily and total plans depends on your travel style. If you're traveling for a short period and want predictable costs, daily plans starting from US$0.56 per day are ideal. For example, if you're on a week-long trip with heavy usage, a daily 3GB plan might suit you best. On the other hand, if you're traveling for a longer time and have varied usage patterns, a total-data plan like 10GB or 20GB might be more cost-effective. The key is to estimate your average daily usage and match it with the plan that fits your budget and needs.

What Are the Local Networks in Vietnam?

The eSIM connects to two main local networks in Vietnam: Vietnamobile and VinaPhone. These networks provide reliable coverage across major cities and tourist areas. For instance, if you're visiting Hanoi or Da Nang, you can expect consistent connectivity. However, in more remote areas, the signal strength might vary. It's always a good idea to check the network coverage maps of these providers before your trip to ensure you have access to the internet where you need it.

What Happens When the Allowance Runs Out?

Once your data allowance is used up, your connection speed will drop to 128 or 384 kbps. This speed is still usable for basic tasks like checking emails or using messaging apps, but it might be too slow for streaming or downloading large files. For example, if you're trying to upload photos to social media, you might find it takes longer than usual. To avoid this, you can top up your plan or purchase an additional data package if needed. It's wise to monitor your usage to ensure you don't run out of data at a critical moment.

Who Should Still Rent Pocket Wi-Fi?

While eSIM is a convenient and cost-effective option, some travelers might still prefer pocket Wi-Fi. If you're traveling in a group and need to share the internet connection, pocket Wi-Fi can be a good choice. Additionally, if you have concerns about device compatibility or prefer a dedicated device for internet access, pocket Wi-Fi might be more suitable. However, keep in mind that pocket Wi-Fi devices can be bulky and require charging, which might be inconvenient for some travelers. Overall, eSIM offers a more streamlined experience for individual travelers.

Physical SIM Card vs. eSIM for Travelling in Vietnam

When travelling to Vietnam, choosing between a physical SIM card and an eSIM depends on your needs. A physical SIM card requires swapping it in your phone, which can be a hassle if you lose or damage the tiny card or need a pin to change it. However, it might be the better choice for those with phones that don't support eSIM or travellers wanting a cheap spare handset. On the other hand, using an eSIM allows you to keep your Hong Kong number active for calls and SMS while enjoying internet access, avoiding the need to queue at the airport after a long flight. Each option has its trade-offs, so consider what suits your travel style best.

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