This plan offers genuinely unlimited internet in Japan, with no throttling. Do keep in mind that it's meant for personal use and that the provider may apply an anti-abuse policy. In our own testing, though, we comfortably used 15 GB in a single day.
Fair-use policy based on information we automatically receive from the provider every 24 hours.
What's this?
Unlimited plans almost always apply a fair-use or data policy: speeds may be reduced after a high-speed allowance. Sometimes providers also throttle the speed from the start. Check the provider's terms before buying. We recommend caution if a provider doesn't clearly communicate its policy during checkout.