Hanoi eSIM: Arriving at Noi Bai
Your Hanoi eSIM does nothing at all until you switch data roaming on for that line. It then joins VNPT, the network behind every Vietnam plan in this catalogue. The plan's clock starts at your first connection abroad, not at the moment of purchase.
12 plans for Vietnam, from 1 GB at $3.99 to 20 GB at $28.99, plus 6 unlimited-data tiers. 5 GB for 30 days costs $10.99 — 11th cheapest of 29 in Asia, against a $10.99 median. Our retail prices from the operator catalogue, checked 13 September 2026.
Vietnam · VNPT 5G · from $3.99
Last eSIM issued 1 day ago
Arriving at Noi Bai International Airport
The one manual step at Noi Bai International Airport is yours, not the phone's. You install the profile over Wi-Fi at home, by scanning the QR code on your order. After landing, you open the eSIM line in settings and switch its data roaming on. That toggle belongs to the eSIM line alone, so your home SIM is left unaffected. You then make the eSIM the line for mobile data, and VNPT picks the phone up. The plan's first day begins at that connection, whatever date you installed the profile.
Which plan for Hanoi
Hanoi runs two plan ladders in parallel, one metered by gigabytes and one unlimited. The metered ladder opens at 1 GB over seven days, priced at $3.99 and checked 5 September 2026. It climbs to 20 GB over thirty days, with 2 GB running for fifteen days in between. The unlimited ladder starts at three days and reaches a full thirty, six steps in all. That longest unlimited plan cost $68.99 on the same date. Data and days expire together on either ladder, so buy for the days you will be in Vietnam.
What Vietnam's rules mean for you
Nothing in Vietnam blocks the eSIM you have already installed on the phone. The country page for Vietnam found no confirmed trap for a roaming data profile. You buy that profile before the trip and use it without any local registration at all. That is the whole of it for a visitor arriving in Hanoi.
The day count opens on VNPT
The plan's first day begins when VNPT registers the phone. That happens after you land, and not when the QR code was scanned. A profile bought a month early therefore arrives with all its days. The date on the order has no bearing on the countdown. Data and days then expire together, whichever runs out first. First use is the trigger the Vietnam entry records, checked 5 September 2026.
Before you fly to Hanoi
- Noi Bai (HAN) is where VNPT registers the phone.
- The metered ladder opens at 1 GB over seven days and ends at 20 GB.
- Vietnam's entry records no confirmed trap for a roaming profile.
The country page has the full rule and every plan: Vietnam eSIM.