Japan eSIM Price Comparison – FastAlo from $1.49
This page compares the published price of a FastAlo Japan eSIM against the list prices of other travel eSIM providers, plus the network and activation details that actually affect your trip. FastAlo sells both plan types: unlimited bundles with a full-speed daily allowance (comparable to Airalo's and Holafly's day-based unlimited plans) and fixed data bundles priced per GB. Prices for other providers are taken from their own public pricing pages on the date shown and can change at any time.
Japan eSIM published prices (USD)
Other providers' prices are list prices copied from their own public pricing pages on 11 October 2026.
| Provider | Plan | Price (USD) |
|---|---|---|
| FastAlo | 1 GB / 7 days | from $1.49 |
| FastAlo | Unlimited Basic (3 GB/day) / 7 days | $17.99 |
| FastAlo | Unlimited Premium (5 GB/day) / 7 days | $29.49 |
| FastAlo | Unlimited Ultra (10 GB/day) / 7 days | $40.49 |
| FastAlo | Unlimited Basic (3 GB/day) / 30 days | $69.49 |
| FastAlo | 10 GB / 30 days | $6.99 |
| FastAlo | 20 GB / 30 days | $11.49 |
| FastAlo | 50 GB / 30 days | $22.49 |
| FastAlo | 50 GB / 180 days | $36.49 |
| Airalo | Unlimited / 7 days | $26.50 |
| Holafly | Unlimited / 7 days | $27.50 |
FastAlo's 7-day Unlimited Basic bundle (3 GB/day at full speed) is $17.99, below the $26.50 and $27.50 list prices for 7-day unlimited elsewhere. If you prefer to pay for data rather than days, the fixed bundles cost less — 50 GB valid for 30 days is $22.49. Both plan types are sold on the same Japan networks.
Networks in Japan
Japan has no 2G or 3G network left — all three national operators run 4G LTE with widespread 5G in the major metros. FastAlo eSIMs attach to Japanese partner networks (NTT Docomo, SoftBank or KDDI depending on the plan and roaming agreement in use), so coverage follows a national operator footprint rather than a local MVNO with limited priority.
Activation on arrival
Install the eSIM over Wi-Fi before you fly — Narita, Haneda and Kansai all have free airport Wi-Fi if you install on arrival instead. The profile downloads once; after that it activates automatically when the phone registers on a Japanese network. Japan's rail apps, IC card top-ups and translation apps are the heaviest data users on a typical trip.
Where coverage is strong
Coverage is strong across Tokyo, Osaka, Kyoto, Nagoya, Sapporo, Fukuoka and the Shinkansen corridors. Rural Hokkaido, mountain areas in the Japanese Alps and some Shinkansen tunnels drop to slower speeds or no signal — that applies to every eSIM and to local SIM cards equally.
Frequently asked questions
Does FastAlo offer an unlimited Japan eSIM?
Yes. FastAlo unlimited Japan bundles include a full-speed allowance each day — 3 GB (Basic), 5 GB (Premium) or 10 GB (Ultra) depending on the tier — and keep working at a reduced speed once that allowance is used, resetting the next day. Bundles run from 3 to 30 days; the 7-day Unlimited Basic bundle is $17.99
Which Japanese network does a FastAlo eSIM use?
FastAlo Japan eSIMs connect to Japanese partner networks — NTT Docomo, SoftBank or KDDI (au) — depending on the plan. All three are national 4G LTE networks with 5G in the major cities.
Is a travel eSIM cheaper than renting a pocket Wi-Fi in Japan?
Airport pocket Wi-Fi rentals in Japan are typically charged per day and must be returned before departure. An eSIM has no device to collect or return and no deposit, and FastAlo Japan plans are priced per data bundle rather than per day.
Can I use a Japan eSIM for calls?
FastAlo eSIMs are data-only. Your normal SIM stays active for calls and SMS, and you can use WhatsApp, LINE or FaceTime over the eSIM data connection. LINE is the dominant messaging app in Japan.
How much data do I need for a week in Japan?
Navigation, translation and messaging typically use 0.5–1 GB per day. Travellers who stream video or upload a lot of photos should plan for more; FastAlo Japan plans run from small 1 GB bundles up to large multi-week bundles.
When were the competitor prices on this page checked?
The date is shown next to the comparison table. Prices are copied from each provider's own public pricing page on that date and can change at any time — always check the provider's site before buying.