What even is an eSIM?

So, think of an eSIM as a SIM card that lives inside your phone. No physical chip. No opening trays. No fumbling with pins or losing those tiny cards.

Just a few taps and boom — you’ve got mobile data.

The Samsung Galaxy Z Flip3 5G comes with two SIM options:

• One slot for your regular, physical SIM
• One built-in eSIM (that you probably haven’t used yet)

And what’s cool is that you can use both. One for calls, the other for data. Or one for personal, one for work. Or just keep a backup for when you travel.

Why does this matter if I travel?

Let’s say you’re flying to South Africa, or Italy, or Thailand. The old-school way of staying connected is landing at the airport, looking half-asleep, trying to find a kiosk to buy a local SIM. Maybe it works, maybe the shop’s closed, maybe you don’t have local currency. And maybe you just end up using your regular SIM and get slapped with a huge roaming bill.

With an eSIM, especially from providers like Airhub, you can:

• Buy your plan before the trip
• Get a QR code in your email
• Scan it, activate, done

As soon as you land, you’re connected. No drama.

How to set up an eSIM in a phone?

Step 1: Buy an eSIM plan

Go to a trusted best eSIM provider. Airhub is one that works with a ton of countries and supports Samsung phones like the Z Flip3. Choose a plan for where you’re going. They’ll send you a QR code or an activation code on email.

Step 2: Open your phone settings

Here’s what to do:

• Go to Settings
• Tap Connections
• Tap SIM Card Manager
• Tap Add mobile plan

Step 3: Choose how you want to use it

Once it’s added, your phone will ask:

• Which SIM for calls?
• Which one for mobile data?
• Which for messages?

You can mix and match, maybe keep your physical SIM for local calls and use the best-suited international eSIM plans.

Why Airhub works well for Samsung users

I’m not here to hard-sell a specific company, but if we’re being honest — not all eSIM providers are smooth or reliable. Some don’t work on Android. Some give vague instructions. Some just don’t work when you land.

Airhub, in comparison, is pretty straightforward:

• Works well with Samsung eSIM phones
• Has data plans for over 190 countries
• Offers prepaid plans — no surprise bills
• You can activate it in minutes
• And you can buy small or big data packs, depending on what you need

If you’re a traveler (even once or twice a year), it saves time, effort, and frustration.

What’s special about the Z Flip3 and eSIM?

The Z Flip3 has that foldable vibe — and honestly, people either love it or hate it. But one thing it does well is handle multiple SIMs.

You can store a bunch of eSIM profiles in it — like a U.S. plan, a Europe plan, and a South Africa one — and switch between them. Only one can be active at a time, but switching takes just a couple taps.

The rest of the phone also has a lot to like:

• Dual 12MP cameras
• A mini display on the front for calls and controls
• Foldable screen that actually feels sturdy
• Water resistance (yep, even though it folds)

And it’s honestly a solid phone for travelers — light, compact, and fun. Also, do check first whether your smartphone is eSIM compatible or not.

Should you try eSIM on the Flip3?

If you’ve got the Samsung Galaxy Z Flip3 5G, you already have a phone that’s a little different from the rest. Might as well make full use of it.

The eSIM feature is easy to set up, super practical if you travel or need multiple numbers, and helps you avoid some real headaches. And if you pair it with something like Airhub eSIM, you’re pretty much set for your next trip without ever needing to hunt down a SIM card shop.
Try it once, you won’t go back to old-school SIM swapping again.

Want to get started?
Head to Airhub app, pick your destination, and set up your eSIM for Samsung in a few clicks. Your phone can handle it. Now it’s your turn.

FAQs