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Notes on travel, data, and saying it well. Thirty short lessons on eSIMs, thirty destination guides, and the tools in between.

GUIDE · VIETNAM · OD 0,78 €
Vietnam by scooter and street stall
VYBRANÉ · eSIM VZDELÁVANIE
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 ČÍTANIE · AKTUALIZOVANÉ 2/2026
Nástroj · 2 MINÚT
Kontrola kompatibility eSIM
Skontroluj môj telefón →

ARTICLE · INSTALLATION
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 ČÍTANIE · 2/2026
Japan · FROM 0,78 €GUIDE · ASIA
Japan for the first time: a week that says it well
A first-timer's Japan itinerary built on restraint: three unhurried days in Tokyo, three in Kyoto, and a final day left open for Nara, Osaka or Kamakura.
PONUKA · LETO V EURÓPE
Jeden plán, tridsať krajín, žiadne putujúce sonety ľútosti.
Regionálna európska eSIM karta. Nainštalujte si raz, voľne preskakujte hranice.
Najnovšie lekcie
Vzdelávanie v oblasti eSIM · 30 témy →Nástroj
Bude tvoj telefón podporovať eSIM kartu?
Dve otázky, jasná odpoveď.
Skontroluj môj telefónPohľadnica · mesačne
Jeden list mesačne. Žiadny spam, iba strofy.
Kompletný index
30 lekcií · 30 destinácií · 3 nástrojov
I. Študijný plán
What is an eSIM? A plain-language guideČ. 02
eSIM vs physical SIM: what actually changesČ. 03
Is your phone eSIM compatible? The full listČ. 04
How to install an eSIM in two minutesČ. 05
Activate before you fly: the pre-flight ritualČ. 06
Data roaming explained (and why it costs so much)Č. 07
How much data do you need for a week abroad?Č. 08
Keep your number, carry our dataČ. 09
Dual SIM done right: home line plus travel dataČ. 10
What happens when your plan runs outČ. 11
Topping up abroad without tearsČ. 12
eSIM on iPhone: step by stepČ. 13
eSIM on Android: step by stepČ. 14
QR code vs one-tap installČ. 15
APN settings, demystified
Why your eSIM shows "No service" (and how to fix it)Č. 17
Hotspots and tethering on a travel eSIMČ. 18
eSIM security: is it safer than plastic?Č. 19
WhatsApp, iMessage and your eSIMČ. 20
Country vs regional vs global plansČ. 21
Two countries, one trip, one eSIMČ. 22
eSIM on cruises and ferriesČ. 23
In-flight data: myths at 30,000 feetČ. 24
Business travel: receipts, VAT and expensesČ. 25
How eSIMs actually work: the tech behind the tapČ. 26
Battery myths, testedČ. 27
Unlocked vs carrier-locked phonesČ. 28
eSIM for tablets and smartwatchesČ. 29
After the trip: should you delete your eSIM?Č. 30
The travel-day checklistII. Tridsať destinácií
Australia0,78 €
Brazil1,28 €
Canada1,12 €
China1,76 €
Croatia0,55 €
Egypt0,80 €
France0,55 €
Germany0,55 €
Greece0,57 €
Iceland0,64 €
India1,39 €
Indonesia0,75 €III. Nástroje

