Prices checked 2026-11-03. These are research snapshots, not live quotes. Currencies follow the official source. Plan names, prices and availability can change.
Compare 12 dated packages from 4 providers in our selection. These are published terms and prices, not independent speed or coverage tests. The sample is not the whole market.
Illustrative requirements, not predictions of your usage. One recorded fixed-data USD package per provider: the lowest listed price meeting both requirements in this sample. Longer-validity packages can fit shorter trips. Unlimited is excluded here because full-speed allowances are a different measure. Taxes, add-ons and checkout changes are not calculated.
These are examples, not equivalent baskets. An unlimited label does not establish unlimited full-speed data or unrestricted tethering. An unknown threshold is not a promise of no limits.
Choose an allowance for navigation, translation and transport throughout your stay. Compare the provider-listed local networks and save arrival information offline. A South Korea package does not imply coverage in Japan or elsewhere in Asia.
Check the exact package
Confirm whether the exact product is data-only or includes a local number, calls or SMS. Check device compatibility, hotspot rules and when validity starts before buying.
Install and activate separately
Installation adds a profile to your phone. The plan’s paid validity follows its own activation rule. The expanded notes on each card distinguish confirmed terms from missing details.
A city stay in Seoul and a longer trip around the country need different amounts of mobile data and validity. Compare total data with daily high-speed allowances carefully; an unlimited label alone does not establish unrestricted full-speed use or tethering.
Data is different from a local number
The packages here are compared as travel-data products. If you need local calls or SMS, verify that the exact package includes them and check any identification or activation requirements on its official page. Internet messaging or a separate app number is not the same as an included mobile number.
Adding Japan to the itinerary
Check every country in a regional package rather than inferring coverage from an Asia label. The South Korea-only records on this page must not be treated as Japan coverage. Compare the actual cost and activation rules of a regional package with separate country plans.
Confirm the final checkout amount, device variant and carrier lock, all destinations, data/calls/SMS, activation deadline and refund eligibility. Ordinary calls and SMS are not included just because a plan has mobile data.
Sources and comparison method
Every plan links to its official product source. Expanded notes cite sources for separately confirmed conditions. Dates belong to actual research snapshots; a missing attribute remains unconfirmed. The scenario tables select from our recorded fixed-data packages within one currency and do not combine or renew packages automatically.
Provider-reported networks are not a guarantee of reception, 5G, speed or latency on your route. We have not performed network tests.
Filter by the days you need and the amount of data you expect to use. Compare within a single currency, then confirm networks, hotspot rules and activation conditions on the official plan page.
Is this the total price for my trip?
The displayed price is for one listed package. The trip-length filter only shows packages with sufficient listed validity; extra usage, calls, add-ons and taxes at checkout may change the amount you pay.
Are all providers included?
No. This is an initial editorial selection of sourced plans. The directory and snapshots are not an exhaustive list of offers in this destination.
