Quick answer
Penang Airport (PEN) is the airport named for Penang. Install a Malaysia eSIM on Wi-Fi before you fly, turn on Data Roaming for it when you land, and choose the Malaysia line for mobile data. The same U Mobile 4G eSIM is for Penang and for Langkawi.
Why use an eSIM at Penang Airport?
You can install the QR on Wi-Fi before the flight, then switch the line on after you land. The eSIM is data only and needs no documents. Your home SIM can stay on for texts, with Data Roaming off on that line.
What do I turn on after landing?
Turn off airplane mode, choose the Malaysia line for mobile data, and turn on Data Roaming for that line. The APN is my3g. The eSIM roams on U Mobile, and there is no extra charge for that roaming.
Does this eSIM cover Langkawi as well as Penang?
Yes. This travel eSIM is for Malaysia on U Mobile 4G, and the places named for it include Penang and Langkawi. You do not buy a separate plan for each place. Pick enough days for the whole stay, and add one day because each plan day is a rolling 24 hours from install.
Frequently asked questions
Can I install the eSIM at Penang Airport?
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Yes, if you have Wi-Fi. Open the QR from your email or order page on a second screen, or use the manual install code. Installing before the trip is easier. The QR scans once and is valid for 30 days.
Is Grab useful in Penang?
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Grab is ride-hailing you can use once you have data.
Which plan suits Penang and Langkawi?
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For one week, 7 days · 5 GB or 10 GB, or 7 days · Unlimited for heavy use. For a short stop, 3 days · 3 GB. Pick one day more than your stay.
Related guides
Penang and Langkawi eSIM guide
One Malaysia eSIM for Penang and Langkawi.
How much data do I need in Malaysia?
Which plan fits a short stop, a week, or longer.
How to install a Malaysia eSIM on Android (Samsung, Pixel)
Samsung Galaxy and Google Pixel steps, from the same QR.
Malaysia eSIM not working? Fixes for no data after landing
Checks to run in the arrivals hall.