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Japan vs South Korea eSIM

Japan vs South Korea eSIM — speed, coverage, and which plan to buy. Both destinations have very competitive entry-level pricing right now.

See Japan plans →See South Korea plans →

Side-by-side

	Japan	South Korea
From price	$1.20	$1.20
Plans available	20	20
Top carriers	NTT Docomo, SoftBank, au KDDI	SK Telecom, KT (Olleh), LG U+
Network type	5G + LTE	5G + LTE
Region	asia	asia

Which one is right for your trip?

Pick Japan if…

Your itinerary is mostly inside Japan, you want strong urban LTE on NTT Docomo, and you value 5g + lte as your primary network.

See Japan plans →

Pick South Korea if…

Your itinerary leans toward South Korea, you want SK Telecom as your primary carrier, and 5g + lte matches your data needs.

See South Korea plans →

Visiting both?

Buy a single regional plan (e.g. Asia, Europe, or Americas) and use one eSIM across both countries — usually cheaper than two single-country plans.

See asia regional plans →

Which is cheaper for an eSIM — Japan or South Korea?

Both destinations have very competitive entry-level pricing right now. Pricing is volatile, so the table on this page is updated automatically. Pro and Premium subscribers save up to 12% on either destination.

Can I use one eSIM for both Japan and South Korea?

Yes — most LTE.app travelers visiting both buy a regional plan that covers them in one purchase. If you only need one country, a single-country plan is usually the cheapest option per gigabyte.

Which has better LTE coverage — Japan or South Korea?

Japan runs primarily on NTT Docomo and SoftBank. South Korea runs primarily on SK Telecom and KT (Olleh). Both deliver strong urban coverage; rural penetration depends on the destination's terrain — see the country pages for full coverage maps.

Should I install my eSIM before flying to Japan or South Korea?

Yes — install at home on Wi-Fi for both. Activation deferred to first connection means the validity clock only starts when you land. There is no advantage to waiting until you arrive.

Will my phone work with both an Japan and a South Korea eSIM?

Any iPhone XS or newer, Pixel 3 or newer, and most modern Samsung Galaxy devices support eSIM. You can store both eSIMs on the same phone and switch between them in Settings without removing anything.