MicroeSIM plans for Japan
2,743 live plans from 24 providers, ranked on what a gigabyte actually costs rather than on the sticker price. Checked 27 August 2026
£0.21
Lowest per GB
Cheapest honest gigabyte here
£1.35
Median per GB
Unlimited and fair-use excluded
£0.76–2.98
Typical band
Where most plans land
52%
Advertise 5G
85% allow hotspot
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