Nordicakay wrote:
Please clarify if I can use the SIM free iPhone outside of Japan?
Sim Free, just means it has no sim. Whether you can then insert a sim from a carrier outside of japan depends on whether it is unlocked or not. You need to specifically ask for an unlocked iPhone. Sim Free in most cases is not the same thing as unlocked.
Nordicakay wrote:
Then I only have to visit the official Apple store in Japan and ask for the unlocked iPhone 7, right?
If unlocked iPhone's can be purchased in Japan then an Apple Store would be the place to try and get one as that is generally where you can find unlocked iPhones in other countries. Again I am not sure they sell unlocked iPhones in Japan, but going into an Apple store and asking is the only thing you can do. Don't be surprised if they don't have unlocked iPhones though.
Note that by law, Japanese phones must have a loud camera shutter noise at all times, and this cannot be turned off.