To me, sub/tropical/ultra is like this
Subtropical, anything that can take some frost 25-28 cherimoya atemoya passion fruit mango avocado sapodilla guava cattleyanum guava most eugenias and plinia etc.
Tropical, anything that struggles below freezing ie soursop, jak fruit, mamey, miracle fruit, milimbi, abiu
Ultra tropical anything that just goes bleh below 45 usually
Durian breadfruit salak mangosteen marang etc.