SONET PÄIVÄKIRJA

Postmarks

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

Kategoria
Aiheet
Tyyppi
Vietnam by scooter and street stall

GUIDE · VIETNAM · ALKAEN 0,78 €

Vietnam by scooter and street stall

ESITTELYSSÄ · eSIM-KOULUTUS

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 LUKUAIKA · PÄIVITETTY HELMI 2026

Työkalu · 2 MINUUTTIA

eSIM-yhteensopivuuden tarkistus

Tarkista puhelimeni →

How to install an eSIM in two minutes

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 LUKUAIKA · HELMI 2026

Japan for the first time: a week that says it wellJapan · 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.

12 MIN LUKUAIKAKatso Japan sopimuksia →

TARJOUS · KESÄ EUROOPASSA

Yksi suunnitelma, kolmekymmentä maata, ei yhtään harhailevaa katumuksen sonettia.

Alueellinen Eurooppa eSIM. Asenna kerran, siirry rajojen yli vapaasti.

Selaa Euroopan paketteja

Viimeisimmät oppitunnit

eSIM-koulutus · 30 aihetta →
The travel-day checklist

Nro 30 · CHECKLISTS

The travel-day checklist

6 MIN →
After the trip: should you delete your eSIM?

Nro 29 · INSTALLATION

After the trip: should you delete your eSIM?

4 MIN →
eSIM for tablets and smartwatches

Nro 28 · DEVICES

eSIM for tablets and smartwatches

5 MIN →
Unlocked vs carrier-locked phones

Nro 27 · DEVICES

Unlocked vs carrier-locked phones

5 MIN →
Battery myths, tested

Nro 26 · DEVICES

Battery myths, tested

5 MIN → Kaikki 30 oppitunnit →

Työkalu

Tukeeko puhelimesi eSIM-korttia?

Kaksi kysymystä, yksi selkeä vastaus.

Tarkista puhelimeni

Postikortti · kuukausittainen

Yksi kirje kuukaudessa. Ei roskapostia, vain säkeistöjä.

Oppaat määränpään mukaan

30 kohdetta · Kaikki oppaat →
Vietnam by scooter and street stall
Vietnam
FROM 0,78 €
California, honestly, and only California
United States
FROM 0,71 €
Bergen to Oslo, the honest cost of the view
Norway
FROM 0,55 €

Kaikki oppaat

30 kohdetta →

Täydellinen hakemisto

30 oppituntia · 30 kohteita · 3 työkaluja

I. Koulutuksen opetussuunnitelma

Nro 01What is an eSIM? A plain-language guideWhat is an eSIM? A plain-language guideNro 02eSIM vs physical SIM: what actually changeseSIM vs physical SIM: what actually changesNro 03Is your phone eSIM compatible? The full listIs your phone eSIM compatible? The full listNro 04How to install an eSIM in two minutesHow to install an eSIM in two minutesNro 05Activate before you fly: the pre-flight ritualActivate before you fly: the pre-flight ritualNro 06Data roaming explained (and why it costs so much)Data roaming explained (and why it costs so much)Nro 07How much data do you need for a week abroad?How much data do you need for a week abroad?Nro 08Keep your number, carry our dataKeep your number, carry our dataNro 09Dual SIM done right: home line plus travel dataDual SIM done right: home line plus travel dataNro 10What happens when your plan runs outWhat happens when your plan runs outNro 11Topping up abroad without tearsTopping up abroad without tearsNro 12eSIM on iPhone: step by stepeSIM on iPhone: step by stepNro 13eSIM on Android: step by stepeSIM on Android: step by stepNro 14QR code vs one-tap installQR code vs one-tap installNro 15APN settings, demystifiedAPN settings, demystified
Nro 16Why your eSIM shows "No service" (and how to fix it)Why your eSIM shows "No service" (and how to fix it)Nro 17Hotspots and tethering on a travel eSIMHotspots and tethering on a travel eSIMNro 18eSIM security: is it safer than plastic?eSIM security: is it safer than plastic?Nro 19WhatsApp, iMessage and your eSIMWhatsApp, iMessage and your eSIMNro 20Country vs regional vs global plansCountry vs regional vs global plansNro 21Two countries, one trip, one eSIMTwo countries, one trip, one eSIMNro 22eSIM on cruises and ferrieseSIM on cruises and ferriesNro 23In-flight data: myths at 30,000 feetIn-flight data: myths at 30,000 feetNro 24Business travel: receipts, VAT and expensesBusiness travel: receipts, VAT and expensesNro 25How eSIMs actually work: the tech behind the tapHow eSIMs actually work: the tech behind the tapNro 26Battery myths, testedBattery myths, testedNro 27Unlocked vs carrier-locked phonesUnlocked vs carrier-locked phonesNro 28eSIM for tablets and smartwatcheseSIM for tablets and smartwatchesNro 29After the trip: should you delete your eSIM?After the trip: should you delete your eSIM?Nro 30The travel-day checklistThe travel-day checklist

II. Kolmekymmentä kohdetta

The east coast of Australia, and the distances nobody mentionsAustralia0,78 €Rio beyond Copacabana, and the city that cooks harderBrazil1,28 €Two cities and one very long drive: Canada, honestlyCanada1,12 €China, sorted before you landChina1,76 €Croatia's coast, one ferry at a timeCroatia0,55 €Cairo and the Nile, and how to haggle without the flinchEgypt0,80 €Paris beyond the postcard, and Burgundy afterFrance0,55 €Berlin, then the trains take overGermany0,55 €Greece, island by islandGreece0,57 €Iceland's ring road, and the week the weather decidesIceland0,64 €India's Golden Triangle, at your own speedIndia1,39 €Bali beyond the beach clubs, then the GilisIndonesia0,75 €
Kaikki 30, A:sta Ö:hön →

III. Työkalut

eSIM-yhteensopivuuden tarkistus→
Datalaskuri
Kattavuuskartta