Japan has world-class mobile networks (NTT Docomo, KDDI/au, SoftBank, Rakuten) and 5G in most cities. The choice of eSIM here is less about coverage and more about which underlying network you get, whether you need unlimited, and how much you'll do hotspot. Honest ranking below.
| Feature | MolaHop | Holafly | Airalo | Nomad |
|---|---|---|---|---|
| Networks stated on the page | KDDI au / NTT docomo / Rakuten / SoftBank (varies by plan) source | KDDI / SoftBank source | SoftBank (+1 other) source | KDDI au / SoftBank source |
| Unlimited plans | ✓ | ✓ source | ✓ source | ✓ source |
| GB plans (not unlimited) | ✓ | ✗ source | Not captured | ✓ source |
| Buy via WhatsApp | ✓ | Not published | Not published | Not published |
| App required to buy | ✗ | ✗ source | ✗ source | ✗ source |
| Plan | MolaHop | Holafly | Airalo | Nomad | Verified |
|---|---|---|---|---|---|
| Japan unlimited / 7 days — MolaHop price is live; the others are the ones captured on the date shown. | €24.43 live price source | €25.50 source | €24.00 source | €21.93 source |
Competitor prices captured on 1 October 2026. MolaHop prices marked "live price" are current.
| Plan | MolaHop | Airalo | Nomad | Verified |
|---|---|---|---|---|
| Japan 5GB / 30 days — MolaHop price is live; the others are the ones captured on the date shown. | €9.29 live price source | €10.00 source | €8.77 source | |
| Japan 20GB / 30 days — Nomad's price was a sale price on 1 October 2026 (regular 22.81 €). | €20.29 live price source | €23.00 source | €20.18 source |
Competitor prices captured on 1 October 2026. MolaHop prices marked "live price" are current.
Japan's networks are not interchangeable in rural areas: NTT docomo and KDDI/au have the broadest reach, and SoftBank is fine in Tokyo, Osaka and Kyoto but thinner in mountain villages and northern Hokkaido. Every provider here names KDDI or SoftBank, and the network can depend on the plan. If you are going somewhere remote, check the network before buying.
Holafly sells only unlimited plans for Japan, with 1GB/day of shareable hotspot data, and had 113,510 Trustpilot reviews (4.7/5) on 1 October 2026. Compare the 7-day unlimited row: our price there is today's and Holafly's is from 1 October 2026.
NTT Docomo has historically the broadest rural coverage, with KDDI/au very close behind. SoftBank is solid in cities but weaker in mountain villages, Hokkaido north and some rural Kyushu. Rakuten is fast in cities where it's deployed but spotty elsewhere. For typical tourist routes (Tokyo–Kyoto–Osaka–Hiroshima) all networks are excellent.
Probably not. 4G LTE in Japan is among the fastest in the world. 5G is widespread in central Tokyo, Osaka, Yokohama and other big cities, but for typical traveler use (maps, translation, messaging, video calls) 4G is more than enough.
In rural areas NTT docomo and KDDI/au work best. Holafly and Nomad name KDDI and SoftBank, Airalo names SoftBank plus one other, and MolaHop's network depends on the plan. If you're heading to Shikoku, rural Kyushu or northern Hokkaido, check the network of the specific plan before buying.
With MolaHop, yes: hotspot works on compatible devices within your plan's data. Holafly states a shareable allowance of 1GB per day. For the others, check the plan page before buying.
For typical usage (maps, photos, social, occasional video) plan on ~1-1.5GB per day. A 2-week trip = ~15-20GB. If you stream a lot, want to upload many photos or share hotspot, go unlimited or 30GB+.
Two-week Tokyo–Kyoto–Osaka trip, normal data use
Pick MolaHop
20GB / 30 days bought via WhatsApp in minutes, no app needed. Our price in the table is today's; the others are from 1 October 2026: compare the exact plan you need.
Heavy unlimited data, 3+ weeks, streaming and hotspot
Pick Holafly
Unlimited-only plans with 1GB/day of shareable hotspot data, and 113,000+ Trustpilot reviews. Fits if running out of data is your main worry.
You already use Airalo on other trips
Pick Airalo
If you already use Airalo and it works for you, there's no reason to switch.
