My understanding is that Android phones purchased in Japan can activate a Suica card. Foreign iPhones are able to register Suica without issue. The only hiccup I had was loading a balance on Suica wasn’t possible with Visa cards. This was the case during my trip this past October.
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I was not able to register my foreign phone for Suica when in Japan last February, I had to get a physical card. Maybe it's changed since then?
My understanding is that Android phones purchased in Japan can activate a Suica card. Foreign iPhones are able to register Suica without issue. The only hiccup I had was loading a balance on Suica wasn’t possible with Visa cards. This was the case during my trip this past October.
iPhones work but foreign (outside of Japan) purchased Android devices don't