Set up your Japan eSIM before you fly

Goal: get the eSIM profile on the phone before boarding. After landing in Japan, turn on the line and roaming as the product page says.

Check the phone first

• iPhone XS and newer usually support eSIM
• Many recent Androids do — Settings → Mobile network → Add eSIM
• Carrier-locked phones may not install

Typical iPhone steps

1. Buy a plan, then open the Klook email/confirmation for the QR or install code
2. On home Wi‑Fi → Settings → Cellular / Mobile Data → Add eSIM
3. Scan the QR and name the line (e.g. “Japan”)
4. Don’t turn on Data Roaming yet until you land (follow the plan rules)
5. On landing: set Japan as Mobile Data + Data Roaming per the product guide

Typical Android steps

1. Settings → Network & internet → SIMs / Mobile network → Download a SIM / Add eSIM
2. Scan the QR from email or the product page
3. Name it and select it for data after you land
4. Enable roaming only when the product guide says to

SoftBank / Xplori / Sakura activation details can differ slightly — re-read the product page after purchase.

If install fails

• You need Wi‑Fi during install — don’t wait until the plane with no network
• Restart after scanning the QR
• Update iOS / Android first
• Still stuck? Use Klook chat from the order email

Pre-flight checklist

• eSIM profile is visible on the phone
• QR / email saved offline
• You know which line will be Mobile Data
• Plan days match the trip

FAQ

Install before flying?

Yes — usually install the profile early, then the day count starts when Japan data is used.

Keep the home SIM?

Yes — keep home SIM for calls/OTP and use the Japan eSIM for Mobile Data.

Still choosing eSIM vs WiFi?