היומן SONET
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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.

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 דקות קריאה · פבר׳ 2026
JPGUIDE · 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.
הצעה · קיץ באירופה
תוכנית אחת, שלושים מדינות, אפס סונטות נודדות של חרטה.
eSIM אזורי באירופה. התקנה אחת, מעבר חופשי בין גבולות.
שיעורים אחרונים
חינוך eSIM · 30 נושאים →
מספר 30 · CHECKLISTS
The travel-day checklist

מספר 29 · INSTALLATION
After the trip: should you delete your eSIM?

מספר 28 · DEVICES
eSIM for tablets and smartwatches

מספר 27 · DEVICES
Unlocked vs carrier-locked phones

מספר 26 · DEVICES
Battery myths, tested
כְּלִי
האם הטלפון שלך יקבל eSIM?
שתי שאלות, תשובה חד משמעית.
בדוק את הטלפון שליהגלויה · חודשי
מכתב אחד לחודש. אין ספאם, רק בתים.
מדריכים לפי יעד
30 יעדים · כל המדריכים →האינדקס המלא
30 שיעורים · 30 יעדים · 3 כלים
א. תוכנית הלימודים לחינוך
What is an eSIM? A plain-language guideמספר 02
eSIM vs physical SIM: what actually changesמספר 03
Is your phone eSIM compatible? The full listמספר 04
How to install an eSIM in two minutesמספר 05
Activate before you fly: the pre-flight ritualמספר 06
Data roaming explained (and why it costs so much)מספר 07
How much data do you need for a week abroad?מספר 08
Keep your number, carry our dataמספר 09
Dual SIM done right: home line plus travel dataמספר 10
What happens when your plan runs outמספר 11
Topping up abroad without tearsמספר 12
eSIM on iPhone: step by stepמספר 13
eSIM on Android: step by stepמספר 14
QR code vs one-tap installמספר 15
APN settings, demystified
Why your eSIM shows "No service" (and how to fix it)מספר 17
Hotspots and tethering on a travel eSIMמספר 18
eSIM security: is it safer than plastic?מספר 19
WhatsApp, iMessage and your eSIMמספר 20
Country vs regional vs global plansמספר 21
Two countries, one trip, one eSIMמספר 22
eSIM on cruises and ferriesמספר 23
In-flight data: myths at 30,000 feetמספר 24
Business travel: receipts, VAT and expensesמספר 25
How eSIMs actually work: the tech behind the tapמספר 26
Battery myths, testedמספר 27
Unlocked vs carrier-locked phonesמספר 28
eSIM for tablets and smartwatchesמספר 29
After the trip: should you delete your eSIM?מספר 30
The travel-day checklistII. שלושים יעדים
Amsterdam by bike, and the day you leave it behind
Bali beyond the beach clubs, then the Gilis
Bangkok, then north to the mountains
Barcelona beyond the Ramblas
Bergen to Oslo, the honest cost of the view
Berlin, then the trains take over
Cairo and the Nile, and how to haggle without the flinch
California, honestly, and only California
China, sorted before you land
Croatia's coast, one ferry at a time
Dubai beyond the malls
Greece, island by islandג. כלים
