Can it be used outside of Japan? SakuraMobile December 04, 2018 09:13 Updated Follow No, it is not usable outside of Japan. Related articles Do I need to purchase SIM card separately? Is there any settings required for the Pocket WiFi? How do I check my data usage? How long does the battery last? How much is the compensation if I lose/break devices. Comments 0 comments Please sign in to leave a comment.