Wax apple is light sweet, crunchy, and lightly astringent, and must be protected from the sun.
There are a few varieties out there:
Thai jumbo
red diamond
black pearl
green diamond
red rocket
perfume
black kingkong.
What's the difference between the varieties?
Thai jumbo (big and green)
black diamond (dark purple)
black pearl ( simular to black diamond)
green diamond (green)
red rocket (long purple)
perfume ( large and smell like perfume)
black kingkong. (improved version of black diamond/pearl?)
They have sweet level of red dragon fruit. Some of the fruits are seedless.