SIM Card & Internet in Vietnam for Indian Tourists - eSIM vs Physical SIM
You've just landed at Tan Son Nhat airport. Your Indian SIM has no roaming (or it does, at ₹999/day - hard pass). You need data to open Grab, check Google Maps, and look up Apple product prices. You're standing in the arrivals hall wondering: physical SIM or eSIM? Which carrier? How much data?
I've tested both options across three trips to Vietnam. Here's the complete sim card internet vietnam indian tourist esim breakdown - what to get, where to get it, and how much it actually costs.
The Two Options: Physical SIM vs eSIM
Before we get into carriers and plans, let's settle the big question.
| Feature | Physical SIM | eSIM | |---------|-------------|------| | Setup time | 5 minutes at airport counter | Instant (if set up before flight) | | Cost | 100,000-200,000₫ (₹330-660) | ₹300-800 depending on provider | | Phone compatibility | Works on any unlocked phone | iPhone XS and newer, most recent Androids | | Your Indian number | Removed (unless dual SIM) | Stays active (Indian SIM stays in slot) | | Coverage quality | Excellent (local carrier tower) | Same - eSIM uses local carrier too | | Data allowance | 3-6GB/day for 15-30 days | Typically 1-2GB/day or total pool | | Top-up | Easy at any convenience store | Through provider app |
My recommendation: If your phone supports eSIM (iPhone XS or newer, Samsung S20+, Pixel 4+), go eSIM. You keep your Indian SIM active for OTPs and calls, and get Vietnamese data on the eSIM. Best of both worlds.
If your phone only has a single physical SIM slot and no eSIM support - grab a physical SIM at the airport. Simple.
Physical SIM Cards in Vietnam
Where to Buy
The easiest place: the airport arrivals hall. At Tan Son Nhat (HCMC), you'll find SIM card counters immediately after exiting customs. Three carriers have stalls:
- Viettel - Vietnam's largest carrier, best nationwide coverage
- Mobifone - second largest, good urban coverage
- Vietnamobile - budget option, decent in cities, patchy outside
At Noi Bai airport (Hanoi), the same three carriers have counters in arrivals.
You can also buy SIMs at:
- Any convenience store (Circle K, FamilyMart, Ministop - they're everywhere in HCMC)
- Phone shops on the street
- Hotel front desks (but marked up)
Carrier Comparison
| Carrier | Tourist Plan | Data | Validity | Price | |---------|-------------|------|----------|-------| | Viettel | ST90 | 4GB/day | 30 days | 200,000₫ (~₹660) | | Viettel | ST30 | 3GB/day | 15 days | 100,000₫ (~₹330) | | Mobifone | Tourist SIM | 3GB/day | 15 days | 150,000₫ (~₹500) | | Vietnamobile | Tourist plan | 2GB/day | 15 days | 100,000₫ (~₹330) |
My pick: Viettel ST30 or ST90. Viettel has the best coverage everywhere - cities, highways, even smaller towns if you're day-tripping. I once lost Mobifone signal on the road to Cu Chi Tunnels (about 40km from HCMC). Never had that issue with Viettel.
Setup Process
The staff at the airport counter will:
- Check your passport (required by Vietnamese law for SIM registration)
- Pop the SIM into your phone
- Activate the plan
- Test that data works
It takes 3-5 minutes. They speak enough English for this. Just say "tourist SIM, 15 days" or "30 days" and point at the plan you want.
Warning: Make sure your phone is unlocked before you leave India. If you bought your phone from Jio, Airtel, or Vi on an EMI plan, it might be carrier-locked. Check by inserting a different carrier's SIM in India - if it works, your phone is unlocked. If it doesn't, contact your carrier to unlock it before your trip.
What Happens to Your Indian SIM?
If your phone has a single SIM slot, you'll need to remove your Indian SIM to insert the Vietnamese one. This means:
- No Indian calls or SMS for the duration of your trip
- No OTPs on your Indian number (this can be a problem for banking apps)
- You'll need to swap SIMs back at the airport before landing in India
Workaround: Carry a cheap secondary phone. Keep your Indian SIM in it. Use the Vietnamese SIM in your primary phone. This is what I do - I carry an old iPhone SE just for Indian OTPs.
eSIM for Vietnam - The Better Option
If your phone supports eSIM, this is the way to go. You keep your Indian physical SIM for calls and OTPs, and add a Vietnamese eSIM for data. No swapping, no second phone.
Best eSIM Providers for Vietnam
| Provider | Data Plan | Validity | Price | Coverage | |----------|----------|----------|-------|----------| | Airalo | 3GB | 15 days | ~₹450 | Viettel/Mobifone | | Airalo | 5GB | 30 days | ~₹650 | Viettel/Mobifone | | Nomad | 5GB | 15 days | ~₹500 | Viettel | | Holafly | Unlimited data | 15 days | ~₹800 | Mobifone | | aloSIM | 3GB | 30 days | ~₹400 | Viettel |
My top picks:
- Best value: Airalo 5GB/30 days at ~₹650. More than enough for a 2-3 day shopping trip, and you can use the leftover data if you extend your stay.
- Best for heavy users: Holafly unlimited. If you're streaming, video calling home, and using maps constantly, the unlimited plan removes all anxiety. ₹800 for 15 days of zero data stress.
- Budget pick: aloSIM 3GB/30 days at ~₹400. 3GB is enough for maps, Grab, and messaging for a short trip.
How to Set Up an eSIM Before Your Flight
Do this while you're still in India, on your home wifi:
The whole setup takes 5 minutes. When you land in Vietnam, just go to Settings → Cellular → turn on the Vietnam eSIM, and you've got data before you even clear immigration.
Pro tip: After installing the eSIM profile, set your Indian SIM as the default for calls/messages and the Vietnam eSIM as the default for data. On iPhone: Settings → Cellular → Default Voice Line (Indian) and Cellular Data (Vietnam). This way, OTPs still come to your Indian number while all data routes through the Vietnamese network.
eSIM Compatibility Check
Not sure if your phone supports eSIM? Here's a quick check:
iPhone: XS, XR, and all models from 2018 onwards support eSIM. On iPhone: Settings → Cellular → Add eSIM. If you see the option, you're good.
Android: Samsung S20+, Google Pixel 4+, OnePlus 12+, and most flagships from 2020 onwards. On Android: Settings → Network & Internet → SIMs → Add SIM.
Doesn't support eSIM? No worries - physical SIM at the airport is just as good. You'll just lose access to your Indian number during the trip.
How Much Data Do You Actually Need?
For a 2-3 day Apple shopping trip to HCMC, here's a realistic data breakdown:
| Activity | Daily Data Usage | |----------|-----------------| | Google Maps navigation | 50-100 MB | | Grab rides (5-6 per day) | 30-50 MB | | Google Translate | 20-30 MB | | WhatsApp messaging + calls home | 100-200 MB | | Checking prices on our comparison tool | 20-30 MB | | General browsing, Instagram, etc. | 200-500 MB | | Total per day | ~500 MB - 1 GB |
So 3GB total is fine for a 2-3 day trip if you're not streaming video. 5GB gives you comfortable headroom. Anything above that is overkill for a shopping trip - unless you're vlogging your MacBook purchase for YouTube, in which case get the unlimited plan.
Internet Speed and Coverage in HCMC
Vietnam's mobile internet is surprisingly fast. Average 4G speeds in Ho Chi Minh City:
| Carrier | Average Download | Average Upload | |---------|-----------------|----------------| | Viettel | 35-50 Mbps | 15-25 Mbps | | Mobifone | 25-40 Mbps | 10-20 Mbps | | Vietnamobile | 15-30 Mbps | 8-15 Mbps |
For reference, that's comparable to or better than Jio 4G speeds in most Indian cities. You'll have no issues loading Google Maps, using Grab, or running Google Translate's camera feature in real-time.
Coverage is excellent in all urban areas - District 1, 3, 4, 5, 7, Binh Thanh, Thu Duc. If you're staying in the city (which you should be for Apple shopping), you won't hit any dead zones.
Pro tip: Most Apple retailers, cafes, and malls have free wifi too. ShopDunk and FPT Shop both have in-store wifi. So you're not entirely dependent on mobile data while shopping. But don't rely on store wifi for Grab - you need data on the street.
Free Wifi in Vietnam - A Backup, Not a Strategy
Vietnam has free wifi almost everywhere:
- Hotels and hostels (always)
- Cafes and restaurants (almost always - ask for the password)
- Shopping malls (yes, including electronics malls)
- Airport (Tan Son Nhat has free wifi, though it's slow)
But free wifi is not a replacement for a SIM/eSIM. You need data for:
- Grab (you're on the street, not in a cafe)
- Google Maps (navigation while walking between stores)
- Emergency calls home
- Google Translate in stores
Use free wifi to save data (download maps, sync photos), but always have a working SIM or eSIM as your primary connection.
My Recommendation
For most Indian tourists on a 2-3 day Apple shopping trip to Vietnam:
If your phone supports eSIM: Get Airalo 5GB/30 days (~₹650). Set it up before your flight. Land with data. Keep your Indian SIM for OTPs. No fuss.
If you need a physical SIM: Get Viettel ST30 (3GB/day, 15 days) at the airport for 100,000₫ (~₹330). Carry a second phone for your Indian SIM if you need OTPs.
If you're a heavy data user: Holafly unlimited 15 days (~₹800). Stream, call, translate, and navigate without ever thinking about data.
Either way, total cost is ₹330-800. That's less than one day of Airtel international roaming. And you'll have fast, reliable internet for your entire trip.
Check live Apple prices on our comparison tool before you go, read the full first-time Vietnam Apple shopping playbook for everything else, and make sure your e-visa is sorted. With data on your phone and savings in your sights, you're all set.