Talk:Japan/@comment-82.225.244.143-20160503184352/@comment-3564598-20160509191512

Depends on how much data you want to use. Unicom HK charges HK$68 daily for use in Japan. That's about 950 yen. Sims2Go charges 9 yen per MB. So if you plan on using more than 105MB daily, then Unicom HK will be the better value. SoftBank prepaid is also an option- 2900 yen gets you 700MB data for a week. That'll only get you a little over 300MB on Sims2Go.

Unicom HK makes sense if you use a lot of data and make your international calls over the internet. They charge roughly the same as Sims2Go for local calls but a lot more for international.

SoftBank makes sense if you mostly plan on receiving calls. They don't charge for incoming calls but charge 90 yen per minute for domestic outgoing and even more for international.