The Xperia 10 iii has very limited service outside of major metropolitan areas due to lacking support for most GSM-T bands used for service coverage in suburban, rural and indoor locations.
I’m visiting near Austin, TX, and indeed, X10III is often sitting in 2.5G mode, unable to upgrade to 4G.
Do y’all know what the situation is for upcoming X10IV or V devices - are those also missing critical US bands?
EDIT not ideal, maybe 5G helps if support ever arrives on SFOS