I still have the Ubigi esim I installed in my iPhone (15 Pro Max) when I moved here a month ago, and it sucks for navigating in congested areas. I don't need to watch HD videos on the subway or something, I just want a GPS signal that will accurately pinpoint my location and direction of travel in Google Maps when I'm at Kyoto station or wherever.
Cost isn't a big concern; I'm happy to pay for good service. At first I was thinking docomo, but the person at the docomo store actually recommended against getting a docomo esim. (She said if there's a problem with it, you have to contact the main office and it's meccha mendouksai, which was really saying something given that her job is basically being a professional mendouksai manager).
Any recommendations? Ideally it'd be an esim that generally works well for traveling around different parts of Japan as well, but I don't need something that works in every deep inaka location; mainly just cities and suburban areas.
by mikenmar