- These SIM cards worked perfectly when we traveled to Japan for 2 weeks

I used the app to top off my card while I was in Japan

This a very sneaky card that deliberately doesn't advertise the fact that they slow down speed just after 100MB/day limit

This SIM card worked perfectly from the moment I landed through my departure.

The sim card did not work on my unlocked phone.

This sim card was amazing during our 7 week vacations in Japan

Used this SIM card on my 3-week trip to Japan and it worked perfectly

Other then that the card and data worked fine .

I know data SIM cards are easily available at international airports in Japan but wanted to purchase one beforehand as we

There is a carrier provided app that registers the card and - most importantly - allows picking an activation date upon which the card would start working

Great sim card, easy to use.

This SIM card worked great

This SIM card worked perfectly!I set up the SIM card the day before I left and inserted the SIM once I arrived at Narita Airport

Wish all sim cards were like this one

works as it should on both phones - no complaints at all.