eSIM Comparator
Compare Japan eSIM plans
Price, data, validity, hidden 5G throttling, and phone number availability — side by side, no fine print.
Estimate how much data you'll actually need, with a safety cushion built in.
Typical usage
Recommended data
6.6 GB
Includes a 25% safety cushion for stress-free browsing.
Enter how many days you'll be in Japan to see roughly what each provider charges for a trip that long.
Some phones are missing the 5G bands Japanese carriers use (e.g. Docomo's n79), and silently fall back to 4G.
Mobal
Cheapest UnlimitedSoftBank (4G/5G) 5G
Includes a local phone number (voice/SMS)~20,00 €
≈ ~2,86 € / day
Ubigi
Docomo (5G) 5G
Data-only, no phone number~22,00 €
≈ ~3,14 € / day
Yesim
Docomo + SoftBank (5G) 5G
Data-only, no phone number~22,01 €
≈ ~3,14 € / day
Airalo
au/KDDI (4G/5G) 5G
Data-only, no phone number~24,50 €
≈ ~3,50 € / day
Sakura Mobile
Docomo (5G) 5G
Data-only, no phone number~30,00 €
≈ ~4,29 € / day
Yesim · 1 GB
Cheapest Pre-PaidDocomo + SoftBank (5G) 5G
Data-only, no phone numberValid for 30 days
~3,70 €
≈ ~3,70 € / GB
Yesim · 5 GB
Docomo + SoftBank (5G) 5G
Data-only, no phone numberValid for 30 days
~8,80 €
≈ ~1,76 € / GB
Yesim · 10 GB
Docomo + SoftBank (5G) 5G
Data-only, no phone numberValid for 30 days
~16,00 €
≈ ~1,60 € / GB
Yesim · 20 GB
Docomo + SoftBank (5G) 5G
Data-only, no phone numberValid for 30 days
~22,50 €
≈ ~1,13 € / GB
Yesim · 30 GB
Docomo + SoftBank (5G) 5G
Data-only, no phone numberValid for 30 days
~30,00 €
≈ ~1,00 € / GB
Manually collected from each provider's pricing page for one season — not a live feed. Sakura Mobile's rates vary by season, which this table doesn't model.