Canistel is from live food
Sapote is from fruit
I presumed canistel was Pouteria campechiana
I presumed Mamey Spotes were Pouteria sapota
I thought the canistels had a lighter smoother skin than mamey sapotes, but have not actually ever had the canistels.
I also think canistels are supposed to be sweet, so most people would consider them fruit rather than vegetables (they are called egg fruit)