My family had a holiday trip to Osaka Japan last week. Just a day before flying off, we started searching information of pre-paid data SIM card in Japan so that our mobile devices can connect to Internet to make video/voice calls and for navigation.
Initially, we set our eye on b-mobile Visitor SIM pre-paid card which costs ¥3,980 for 14 days but realized that we do not have a compatible MiFi and planned to buy one. While searching for a compatible MiFi, we noticed there are lots of MiFi rental service in Japan which includes data plan (known as Pocket WiFi). Here are some providers for Pocket WiFi.