Internet
Yes
Calls
No
SMS
No
4G
Yes
Works only on unlocked eSIM-supported devices — check your phone compatibility before purchase
Most packages do not include calls or SMS
Choose one of three methods:
Scan QR code
Install via 'Quick Install' button
Manual setup through phone settings
Use the package within 3 months from purchase
Local (one country), Regional (multiple countries), Global (many countries)
Not available for Sicily
Vietnam runs along the sea for almost two thousand kilometres, and most trips mix megacities, mountain roads and islands. Mobile data is what you use for ride-hailing apps, maps, translation and messages to hosts and guides. An eSIM gives you a connection right after landing, without looking for a shop or registering a local SIM card.
You can buy an eSIM for Vietnam online right on this page from 3 500 ₸: choose a data plan, pay by card and get the QR code within minutes. An eSIM is a digital SIM card — it installs on your phone with no plastic card and no visit to a phone shop.
The eSIM connects to local mobile networks, so you have data wherever they have coverage — Hanoi, Ho Chi Minh City and Da Nang and the rest of the country.
Roaming in Vietnam with a Kazakh carrier is usually far more expensive, and roaming data runs out fast. With a Funsim eSIM you pay a fixed price for a data package and keep your home SIM in the phone for calls and bank SMS — roaming on it can stay off.
If your phone does not support eSIM, you can buy a regular physical SIM card with data for Vietnam at a Funsim point of sale: at Almaty and Shymkent airports, or at our offices in Almaty — 130/1 Abay St and 1 Pozharsky St. Handy if you remember about the internet right before departure.
Vietnam has plenty of places where you need a connection quickly: airports with long passport-control queues, stations, ports, sleeper buses and mountain villages. If the data plan is already installed, you switch on data roaming for the eSIM line and can order a taxi or open a map straight away. Your regular SIM stays in the phone for calls and bank SMS.
Funsim plans are built for data, so calls and chats are easier through messengers. There are regional and global plans for trips across several Southeast Asian countries and local plans for Vietnam only. See the plans above for the current options.
| Criterion | eSIM Funsim | Roaming | Local SIM |
|---|---|---|---|
| When you get a connection | Right after landing, profile set up at home | Right away, at your home operator's rates | After buying and activating in a shop |
| Cost | Fixed package, price visible before purchase | Usually much more expensive, check your operator | Often cheap, but you must find a seller |
| Documents | No passport needed to buy | None needed | Passport usually needed for registration |
| Queues and language barrier | None: everything is done online | None | Possible queues and explaining in English |
| Calls and SMS | Usually data only, calls via messengers | Available, but paid | Depends on the package |
| Convenience on the route | One profile for the whole country | Nothing to set up | Package may not suit other countries |
Coverage in big cities and popular resorts is usually good, while in the mountains, on rivers and on remote islands the signal can be uneven. Here is how connectivity looks in places travelers often choose.
The biggest city in the south: a huge urban area with dense traffic, many districts and a metro. Data is used for taxi apps, navigating between neighbourhoods, ordering food and finding cafes. Signal in the centre, in tourist districts and near stations is usually solid, so an eSIM suits independent walks without a guide. From Tan Son Nhat airport to your hotel, a working taxi app makes the ride simpler.
One- and two-day trips from Ho Chi Minh City to My Tho, Ben Tre or Can Tho follow rivers, canals and country roads. Towns usually have a stable network, while on boats among canals and orchards the signal can vary from spot to spot. Data helps with maps, contact with your guide and booking the return transfer. Download an offline map of the area in case of short dropouts.
A highland city with a cool climate, visited for coffee farms, lakes and waterfalls. In the centre the connection is good for maps and taxis, but on switchbacks, in forests and at waterfalls far from town the signal can be weaker. Many people rent a motorbike or hire a guide for the day, so load the route map beforehand. In the evening data is handy for booking dinner and the ride back.
A small beach village known for kitesurfing and the red sand dunes. In the village and along the seafront the network is stable for social apps and ordering rides, but in the empty dune area it can be weaker. Jeep tours at sunrise and sunset are usually booked on the spot, so data helps you compare prices and contact the driver. Charge your phone in advance: navigation and heat drain the battery fast.
A mountain town in the north where routes through rice terraces and villages begin. In town the connection is usually fine, but during treks through the valleys the signal can vanish and return. If you walk with a guide, data is for messages; if you walk alone, it is for the map and weather forecast. Fog and rain change plans, so check conditions in town before you head onto the trail.
A northern region by the border, popular with people riding the mountain loop by motorbike or with a driver. Towns usually have a network, but on high passes and in narrow valleys coverage is uneven. Save the loop map and overnight stops offline, and use the eSIM for up-to-date weather, guesthouse bookings and contact with the rental shop. Do not count on steady video along the whole route.
The former capital with its imperial citadel, tombs and the Perfume River. The city is compact and the centre has good signal, and data is mostly used for tickets, taxis and navigating between tombs that lie far apart. Some sites outside town are a long way from the centre, so save the addresses and book the return ride through an app. Many people cover the road from Da Nang over the pass by train, bus or car.
A national park with caves and jungle. The small village at the entrance usually has a connection, but inside the caves and on forest trails there will be none. Choose tickets and tours in advance while you have coverage, and message your guide before entering the park. An eSIM here is mainly for checking the weather, the route and a taxi to the next town.
A scenic area of limestone cliffs, rice fields and boat rides along rivers. In town and at the main tourist points the connection is usually stable, while on the water among the cliffs it can weaken. Data helps with buying tickets, calling a taxi to the pagodas and contacting a boatman, and an open map is handy for cycling. Many people come here for a day from Hanoi, so plan the return transport in advance.
Install and set up the apps you need before the trip. It is easier to register on your home network, while ordering taxis and food will happen on the eSIM.
A popular app for ordering taxis, motorbike rides and food in big cities. The price is shown before the ride, and you can type addresses in Latin letters. Link your bank card in advance and check that the route matches your destination.
A local service for ordering taxis and motorbike rides. It is useful as a backup when Grab has no cars available for a long time. An English interface is available, but check the language settings right after installing.
The main tool for routes, reviews and opening hours. Before heading to the mountains, download an offline map of the area. Public transport is not always shown in full in cities, so compare with signs on the spot.
The most widespread local messenger in Vietnam. Hosts, guides and small tour companies sometimes prefer it. You can register in advance, but the confirmation code arrives by SMS, so use your home SIM.
Helps you read menus and signs and write a message to a driver. Download Vietnamese for offline use and the camera feature beforehand. Vietnamese tones are hard, so it is better to show the text on screen than to pronounce it.
They work over mobile data unless blocked by your network. For family chats and work groups the eSIM is enough, while calls to regular numbers through apps are charged separately or unavailable.
Check that your phone supports eSIM and is not carrier-locked. Make sure you buy a plan for Vietnam or a regional plan that includes the country.
Buy the eSIM on the website by paying online with a card. No passport is needed. To install the profile, scan the QR code or tap the quick-install button, or enter the details manually.
Install the profile at home or at your departure airport on stable Wi-Fi. Wait for the installation to finish and do not delete the eSIM until the trip is over.
After landing in Hanoi, Ho Chi Minh City, Da Nang or another city, switch on the eSIM line and allow data roaming on it. Keep your main SIM on for calls and bank SMS.
If no network appears, restart the phone, check that the eSIM is selected for mobile data and that automatic network selection is on. If your data runs out, buy an extra package.
Before trips into the mountains and nature reserves, download offline maps and tell your hosts in advance when you will arrive: where the signal is weak, this saves time.
