Poststempel / eSIM-Schulung

The eSIM curriculum

Thirty short lessons, from "what even is it" to "fixing it on a ferry". Read in order if you're new; jump straight to your problem if you're not.

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HIER BEGINNEN · Nº 01-06
What is an eSIM? A plain-language guide

Nr. 01

What is an eSIM? A plain-language guide

No jargon. What an eSIM actually is, how it differs from a plastic SIM, and why travellers adopted it first. A plain guide before your next trip.

8 MIN · MARTA KOWALSKA

eSIM vs physical SIM: what actually changes

Nr. 02

eSIM vs physical SIM: what actually changes

A clear comparison of eSIM and physical SIM cards - what's identical, what's different, and the two situations where plastic still beats software.

3 MIN · MARTA KOWALSKA

Is your phone eSIM compatible? The full list

Nr. 03

Is your phone eSIM compatible? The full list

Which iPhones, Galaxy and Pixel phones support eSIM, plus the mainland China and US-locked exceptions, and the 30-second test to check your own.

3 MIN · MARTA KOWALSKA

How to install an eSIM in two minutes

Nr. 04

How to install an eSIM in two minutes

A step-by-step guide to installing an eSIM: what you need first, the actual install steps, and how to confirm it worked before you travel.

3 MIN · MARTA KOWALSKA

Activate before you fly: the pre-flight ritual

Nr. 05

Activate before you fly: the pre-flight ritual

Why installing your eSIM days before departure - not at the gate - matters, and the exact settings to check so it wakes up the moment you land.

3 MIN · MARTA KOWALSKA

Data roaming explained (and why it costs so much)

Nr. 06

Data roaming explained (and why it costs so much)

What mobile data roaming actually is, why your home carrier charges so much for it abroad, and how a travel eSIM sidesteps the whole arrangement.

3 MIN · MARTA KOWALSKA

Bevor Sie fliegen

Nº 07-20
How much data do you need for a week abroad? How much data do you need for a week abroad?Keep your number, carry our data Keep your number, carry our dataDual SIM done right: home line plus travel data Dual SIM done right: home line plus travel dataeSIM on iPhone: step by step eSIM on iPhone: step by stepeSIM on Android: step by step eSIM on Android: step by stepCountry vs regional vs global plans Country vs regional vs global plans

Unterwegs

Nº 11-24
Topping up abroad without tears Topping up abroad without tearsHotspots and tethering on a travel eSIM Hotspots and tethering on a travel eSIMWhatsApp, iMessage and your eSIM WhatsApp, iMessage and your eSIMTwo countries, one trip, one eSIM Two countries, one trip, one eSIMeSIM on cruises and ferries eSIM on cruises and ferriesIn-flight data: myths at 30,000 feet In-flight data: myths at 30,000 feetBusiness travel: receipts, VAT and expenses Business travel: receipts, VAT and expenses

Behebt

Nº 10-27
What happens when your plan runs out What happens when your plan runs outQR code vs one-tap install QR code vs one-tap installAPN settings, demystified APN settings, demystifiedWhy your eSIM shows "No service" (and how to fix it) Why your eSIM shows "No service" (and how to fix it)Battery myths, tested Battery myths, testedUnlocked vs carrier-locked phones Unlocked vs carrier-locked phones

Tiefe Schnitte

Nº 18-30
eSIM security: is it safer than plastic? eSIM security: is it safer than plastic?How eSIMs actually work: the tech behind the tap How eSIMs actually work: the tech behind the tapeSIM for tablets and smartwatches eSIM for tablets and smartwatchesAfter the trip: should you delete your eSIM? After the trip: should you delete your eSIM?The travel-day checklist The travel-day checklist

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