일본 무제한 데이터 eSIM (2026): ₩947부터 16개 이상 제공사를 비교합니다. eSIMPlanet에서 검증된 파트너 프로모 코드(선택 브랜드 최대 30%)는 많은 무제한 상품에도 사용할 수 있습니다. 표나 프로모 허브에서 복사해 결제 시 적용하세요. 최종 업데이트 2026년 5월.
일본용 무제한 eSIM 요금제
일본용 무제한 eSIM 선택 방법
무제한 요금제는 지도, 화상통화, 클라우드 백업, 테더링처럼 기가바이트를 세지 않고 쓰기 좋습니다. 대부분의 브랜드는 공정 사용 규정을 공지하며, 4G/5G는 유지되지만 4K 스트리밍 연속·대량 다운로드 등 비정상 트래픽이면 속도가 일시적으로 낮아질 수 있습니다. eSIMPlanet은 일본 여행에 조건이 읽기 쉬운 순으로 정리하고 가격 옆에 검증된 프로모 코드를 보여 같은 무제한 패스를 더 저렴하게 살 수 있게 합니다.
일정에 맞춰 유효 기간(7·15·30일 이상)을 맞추고, 노트북이 필요하면 테더링 허용을 확인한 뒤 일본 전용 프로모 페이지에서 브랜드별 코드를 확인하세요. "제안 보기"를 눌러 카드의 코드를 복사해 결제 페이지에 붙여 넣으면 무제한 SKU에도 할인이 적용되는 경우가 많습니다. 가격은 매일 갱신되고 캠페인은 바뀌므로 구매 전 표와 프로모 허브를 함께 비교하세요.
FAQ: 무제한 요금, 공정 사용, 네트워크와 프로모 코드 (일본)
Do verified eSIM promo codes apply to unlimited plans for 일본?
Very often, yes. On eSIM Planet we test partner promo codes weekly and show them next to prices in the comparison table. Paste the code on the provider checkout: many brands discount unlimited passes the same way as fixed-data plans. Always read the basket summary because some flash campaigns exclude specific SKUs.
What does “unlimited†eSIM data mean in 일본?
For 일본 (2026), unlimited roaming eSIM plans typically let you use mobile data without a fixed gigabyte cap, while relying on local partner networks. Most brands still apply a fair-use policy: after unusually heavy usage, speeds may be temporarily reduced. Always read the provider terms linked from our comparison table before purchasing.
Which mobile networks do travel eSIMs use in Japan?
Japan travel eSIMs usually ride on one or more major national networks, commonly NTT Docomo, SoftBank, KDDI (consumer brand au), and sometimes Rakuten Mobile, depending on the eSIM reseller wholesale agreement. Big cities (Tokyo, Osaka, Kyoto, Fukuoka) have dense LTE and 5G; mountainous or remote coastal areas can still have short dead zones, just like with local SIMs.
Unlimited vs gigabyte plans for Japan: which should I pick?
GB plans are cheaper if you mostly use maps, messaging, and light browsing. Unlimited makes sense for remote work, video calls, heavy photo or video backups, or multi-device households. Compare price per day and validity (7, 15, 30 or more days): Japan trips are often short but very data-hungry.
Is 5G included on unlimited Japan eSIMs?
Many plans advertise 5G when the partner network and your handset support it (common bands include n1, n3, n28, n41, n77, n78: check your phone specs). Otherwise you will still get strong LTE Advanced performance in Japan. Real-world throughput depends on congestion, carrier aggregation, and MVNO policies.
Can I use hotspot / tethering on an unlimited eSIM in Japan?
It depends on the provider: some allow tethering within the same fair-use envelope, others restrict it or treat it as a single-device plan. If you need a laptop or tablet in addition to your phone, confirm hotspot rules in the product page or with support before buying.
Should I activate my eSIM before landing in Japan?
You can usually install the eSIM profile before departure (QR or app), then enable cellular data after arrival so you do not burn the plan early. Avoid leaving your home SIM data roaming on during the flight. At major airports (Narita, Haneda, Kansai, etc.), LTE or 5G often comes up within minutes once the line is active.
Unlimited Japan eSIM vs pocket WiFi vs local SIM?
Pocket WiFi rentals often include very high data buckets and easy multi-device sharing, but you carry an extra device and return logistics. Airport counter SIMs can be fine but may involve queues and Japanese-only contracts. A prepaid eSIM bought online before travel remains the most flexible option for many connected tourists in 2026.
How should I read this unlimited plans comparison for 일본?
Sort by price, duration, or value. Click through to the provider to double-check validity, fair-use wording, customer support channels, and recent reviews. Prices on eSIM Planet are refreshed regularly; partner promotions may change with campaigns.
