01How much do Japan & South Korea eSIM plans cost?
11 plans from $2.70 up to $30.60. Prices are live from the catalog and every plan page shows the current price, the data amount and the validity.
Packages
Japan & South Korea eSIM
If you're running low, you can always top up
The package starts when you connect to a supported network
Hotspot and tethering allowed on every plan — share the data with a laptop or another phone
2 countries includedView all →
Data
Japan & South Korea eSIM: questions travelers ask
02Which countries does the Japan & South Korea eSIM cover?
2 countries on one eSIM: Japan and South Korea. The plan switches between partner networks as you cross borders.
03Which networks does the Japan & South Korea eSIM use?
The plans connect to partner networks in every covered country, on 3G/4G/5G depending on the local network. Each plan page lists its networks and whether they offer 3G, 4G or 5G.
04When does my Japan & South Korea plan start?
At the first connection to a network in Japan & South Korea, not when you buy or install it. Install at home over Wi‑Fi; the days start counting when you land.
05How do I install the eSIM?
The QR code arrives by email within minutes of payment. iPhone: Settings → Cellular → Add eSIM and scan it. Android: Settings → Network & Internet → SIMs → Add eSIM. It takes about two minutes; the help center has the step-by-step version.
06Do I keep my phone number and WhatsApp?
Yes. The eSIM carries data only and works next to your own SIM, so your number, WhatsApp, iMessage and banking apps keep working. Switch data roaming off on your home SIM so it never bills you abroad.
07Will the eSIM work on my phone?
Yes, if the phone supports eSIM and is carrier-unlocked. Dial *#06#: if an EID number appears, it supports eSIM. iPhone XS, XR and newer, Google Pixel 3 and newer and recent Samsung Galaxy phones all do; the help center has the full check.
08Can I use the Japan & South Korea eSIM as a hotspot?
Yes. Every plan allows personal hotspot and tethering, so a laptop or a travel companion's phone can share the eSIM's data. Shared use counts against the same allowance.
09What happens when the data runs out?
Every Japan & South Korea plan can be topped up from My eSIMs in a minute. An optional auto top-up refills fixed plans at 90% used and adds days to daily plans before they end. Daily plans get cheaper per day the more days you buy at once.
10Can I get a refund?
Yes, in full within 30 days of purchase, as long as the eSIM was never activated. A technical problem that stops activation is refunded too; write to support with your order number.
11How do I reach support?
Write to support@voyasim.io or use the chat on the site. A person replies within 24 hours, in English.
All 32 questions →·What is an eSIM?·How to activate an eSIM·eSIM vs physical SIM·Talk to a person