Vietnam eSIM for German Tourists: Best Plans, Prices & Setup Guide 2026
If you are planning a trip from Germany to Vietnam, having reliable mobile data can make your holiday much easier. From navigating Hanoi with Google Maps to ordering a Grab, translating Vietnamese menus, checking hotel reservations and staying in touch with family on WhatsApp, an internet connection is essential for many travelers.
A Vietnam eSIM for German tourists can be a convenient alternative to international roaming. You can purchase your eSIM before leaving Germany, install it on a compatible phone and connect to a Vietnamese mobile network after landing.
This guide explains how Vietnam eSIMs work, compares them with roaming options from Deutsche Telekom, Vodafone Germany, O2/Telefónica and 1&1, and shows how much data you may need for a 3-day, 7-day or two-week trip.
Why German Travelers Need Mobile Data in Vietnam?
Vietnam is a popular destination for German tourists, with travelers commonly visiting Hanoi, Ha Long Bay, Sapa, Da Nang, Hoi An, Nha Trang, Ho Chi Minh City and Phu Quoc.
Mobile data is useful throughout the trip for everyday travel tasks, including:
- Google Maps: Find hotels, restaurants, attractions and transportation.
- Grab: Book cars, motorbikes and food delivery.
- Google Translate: Translate Vietnamese signs, menus and conversations.
- WhatsApp: Send messages, photos and make internet calls.
- Online banking: Check balances, receive transaction notifications and manage accounts.
- Travel bookings: Access airline, hotel and tour reservations.
- Social media: Upload photos and videos while traveling.
- Emergency communication: Contact hotels, tour operators or family when necessary.
For travelers moving between multiple Vietnamese destinations, having mobile data from the moment they arrive can be particularly convenient.
Why Buy a Vietnam eSIM Before Flying?
Buying your eSIM online before departure means you land already connected. You install the eSIM profile at home over Wi-Fi, and it activates automatically once your plane touches down in Vietnam — no searching for a SIM kiosk, no language barrier at an airport counter, and no wasted first hour of your trip trying to get online.
Comparison Vietnam eSIM vs German Roaming
Vietnam falls outside the EU roaming area, so German operators charge for it through separate international passes rather than your normal domestic allowance. Here's how those options compare with a local Vietnam eSIM:
German Roaming Providers: Vietnam Pricing Comparison
Compare German mobile carrier roaming options for Vietnam travel with local eSIM alternatives.
| Provider | Vietnam Option | Data | 5 Days | 7 Days | 10 Days |
|---|---|---|---|---|---|
| Deutsche Telekom | Travel & Surf | 500 MB / 7 days | €15.95 | €15.95 | €29.95 |
| Vodafone Germany |
WorldTravel*
*2 GB per billing month
|
2 GB / month | €4.99 | €7.99 | €10.9 |
| O2 / Telefónica |
Roaming Plus World**
**Promo: 4 GB until Aug 31, 2026
|
4 GB / month | €14.99 | €14.99 | €14.99 |
| 1&1 | Internet Welt | 10 MB / 7 days | €29.99 | €29.99 | €59.98 |
| Vietnam eSIM (6 GB/day) | Local eSIM | 6 GB/day | $4.90 | $10.90 | — |
| Vietnam eSIM (Viettel) | Local eSIM | 5 GB/day | — | — | $9.90 |
Deutsche Telekom (D-Netz)
Telekom places Vietnam in its international roaming zone, so the relevant products are its Travel & Surf passes rather than EU roaming. The cheapest practical package for a short trip is the WeekPass M at 500 MB for €15.95, while a 10-day trip realistically needs the 3 GB / 14-day pass at €29.95. For travelers who expect to use several gigabytes a day for navigation and video calls, these allowances run out fast.
Vodafone (D-Netz)
Vodafone's WorldTravel option is the most competitive German roaming choice on this list — €4.99 gets you 2 GB per billing month in Vietnam, valid for a full year once activated. Note that Vodafone also sells a separate ReisePaket World at €9.99/day or €34.99/week, which is a very different (and much pricier) product, so it's worth checking which option your tariff actually includes.
O2 / Telefónica Germany
O2's Roaming Plus World normally provides 2 GB for €14.99/month, temporarily boosted to 4 GB through August 31, 2026. Vietnam is explicitly included. Without an active roaming pass, O2 customers can rack up charges quickly, with cost-control caps typically kicking in around €59.50 per billing period.
1&1
1&1 is the weakest option for Vietnam by a wide margin. Its Internet Welt packages offer just 10 MB over 7 days for €29.99 — barely enough for a handful of map searches, let alone Grab, WhatsApp calls, or photo uploads. A 10-day trip would require two separate passes at €59.98 total for essentially no usable data.
The takeaway
Even the best German roaming deal (Vodafone's 2 GB/month) is a fraction of what a Vietnam eSIM provides for a similar or lower price, often delivering several gigabytes per day instead of per month.
Best eSIM Vietnam For German Tourists
Discover the best eSIM for Vietnam from Germany with our expert guide. Compare Viettel, Vinaphone, and Mobifone coverage, data packages for 7-30 days, prices, and secure buying options. Stay connected on your island paradise vacation!
Benefits of Using a Vietnam eSIM
Keep your German SIM active — your home number stays online in a second slot for calls and SMS
Receive OTPs on your German number — important for German banking apps and two-factor logins while your Vietnamese data runs separately
Dual SIM support — most modern iPhones and Android phones run a physical SIM and an eSIM side by side
Instant QR code delivery — plans arrive by email in minutes, no waiting for a physical card
No airport queues — skip the SIM counters and language barriers on arrival
Local 4G/5G speeds — connect directly to Vietnamese networks instead of a roaming handoff
Hotspot/tethering support — share your connection with a travel companion's phone or a laptop
Best Vietnam eSIM Plans for German Travelers
Short trips (3–5 days): A 6 GB/day plan around $4.90–$7.90 comfortably covers maps, messaging and social media for a quick city break.
One-week trips: The same 6 GB/day tier scales well for 7 days, giving roughly 42 GB total — more than enough for streaming music or making video calls home.
Two-week holidays: Longer plans on the 5 GB/day tier (around $9.90 for 10 days, with extended options available) suit travelers combining several cities or a beach-and-city itinerary.
Business travelers: Prioritize plans with strong hotspot allowances and reliable coverage in Hanoi and Ho Chi Minh City for video calls and email.
Unlimited data options: Some providers offer capped-speed "unlimited" plans after a daily threshold — useful for heavy streamers, though a generous daily-GB plan is usually cheaper for typical tourist use.
How to Buy a Vietnam eSIM from Germany?
- Visit https://vietnamesim.vn/ then choose a plan based on trip length and expected daily data use.
- Complete checkout online — payment works the same as any German webshop, in EUR or USD depending on the provider.
- Receive your QR code and installation instructions by email, typically within minutes.
- Install the eSIM before you fly, while you still have Wi-Fi at home.
Coverage Across Vietnam
Vietnam's three main mobile networks — Viettel, Mobifone and Vinaphone — all offer strong 4G coverage nationwide, with 5G expanding in major cities. Coverage is consistently good across the country's top destinations:
- Hanoi — full 4G/5G coverage across the Old Quarter and outer districts
- Ho Chi Minh City — Vietnam's best-covered city, ideal for business travelers
- Da Nang — strong coverage along the beach strip and city center
- Hoi An — reliable in the Ancient Town and surrounding resorts
- Nha Trang — solid coastal coverage, including most island tours
- Phu Quoc — good coverage in main towns; expect gaps in remote jungle areas
- Ha Long Bay — coverage on the mainland and near-shore; can weaken further out on the bay
- Sapa — generally reliable in town, with some drop-off on remote mountain trails
Conclusion: Get Your Vietnam eSIM Before Leaving Germany
For German tourists, preparing mobile connectivity before departure can make arriving in Vietnam much easier.
You can keep your German SIM active for important calls, SMS and OTPs while using the Vietnam eSIM for everyday data. With the right plan, you can use Google Maps, Grab, Google Translate, WhatsApp, banking apps and travel services without relying entirely on expensive international roaming.
Before purchasing, compare the validity period, daily data allowance, supported Vietnamese network, hotspot policy and current price.
For most travelers, buying a Vietnam eSIM before departure means landing in Vietnam ready to connect instead of searching for a SIM card after a long flight.
If Vietnam is your next destination, purchase your Vietnam eSIM before leaving Germany so you can start your trip with mobile data ready when you arrive.
FAQ - Vietnam eSIM for German Tourists
Yes — keep your physical German SIM in place and add the Vietnam eSIM as a second line, so your number stays reachable for calls and SMS.
Yes, any eSIM-compatible iPhone (iPhone XS and newer) supports Vietnam eSIMs alongside a physical SIM.
Yes, since your German SIM stays active for SMS while the eSIM handles data.
Some Vietnam eSIM providers require basic identity details during checkout, though the process is typically much quicker than in-person SIM registration.
For most travelers, yes — you avoid queues, language barriers, and inflated airport pricing, and you're online before you even land.
Viettel generally offers the widest rural and remote coverage, while Mobifone and Vinaphone are strong choices for city-focused itineraries.
For maps, messaging, ride-hailing and moderate social media use, 3–6 GB per day is a comfortable buffer; heavier streaming users should look at higher daily allowances.