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Airalo is the eSIM most travelers have heard of, and its “Moshi Moshi” plans are among the most popular for Japan. But popular doesn’t always mean right for you. Here’s an honest look at what Airalo gets right, its one real limitation, and whether it fits your trip.
The verdict up front
Airalo is the easiest, most trusted choice for a first-time visitor who wants zero fuss. The app is genuinely simple, the plans are fairly priced, and setup takes minutes. Its one catch: it’s 4G-only in Japan. For maps, translation, and browsing around the tourist cities that’s perfectly fine — but if you want top 5G speeds or the strongest rural coverage, look elsewhere.
Plans and pricing
Approximate for July 2026 — confirm current rates, and watch for promo codes.
- 10 GB / 30 days: around $18 — a comfortable amount for a typical week or two of sightseeing.
- 20 GB / 30 days: around $26 — for heavier users or longer stays.
- Smaller 1–5 GB packs and shorter 7- and 15-day options are also available.
- Airalo often runs discount codes, so it pays to check before checkout.
The Moshi Moshi network — the one catch
Airalo’s Japan plans run on the 4G/LTE networks of SoftBank and KDDI, automatically switching to the best available signal. Coverage across Tokyo, Kyoto, Osaka and the main routes is solid. The limitation is that it’s 4G only — no 5G. Honestly, for typical tourist use (maps, messaging, photos, light browsing) you won’t notice. But if you stream heavily, tether a laptop for work, or head deep into rural Japan, a 5G option like Ubigi will serve you better.
Tethering
Tethering is allowed and not separately capped, so sharing to a tablet or laptop for a while is fine. Just don’t expect 5G speeds while you do it.
Setup and app
This is where Airalo earns its reputation. The app walks you through purchase and installation in a couple of taps, and it’s the most beginner-friendly experience of any provider here. If it’s your first-ever eSIM, that simplicity is worth a lot — our install guide covers the general steps too.
Pros and cons
Pros: huge brand trust; the simplest first-time setup; fair pricing; frequent discount codes; uncapped tethering.
Cons: 4G only (no 5G); network edge trails Ubigi outside the cities; data-only (no voice number).
Who Airalo is for
Airalo is ideal for first-time eSIM users and short-trip tourists who value a familiar, frictionless app over squeezing out maximum speed. If you just want one that works without thinking about it, Airalo is a safe bet.
Alternatives worth a look
- Better network / 5G: Ubigi — see our Ubigi Japan review, especially for rural trips.
- Full comparison: our best eSIM for Japan for tourists ranks Airalo against the rest.
FAQ
Is Airalo’s 4G-only a problem? For typical sightseeing, no. For heavy streaming, laptop work, or deep-rural travel, a 5G option is better.
Can I use Airalo and keep my home number? Yes. Your normal SIM stays in for calls; Airalo handles data.
Are Airalo’s discount codes worth using? Yes — check for a current code before checkout; it can shave a few dollars off with no downside.
The bottom line
Airalo is the friendliest on-ramp to eSIMs and a great choice for first-time visitors who want simplicity and a name they trust. Accept the 4G-only limitation and you get an easy, fairly priced connection for a normal trip. Want 5G and the strongest rural signal? Compare it with Ubigi first.
See the full ranking in our tourist eSIM guide, or start from how to get internet in Japan.