Can you tell which one is Green Crack and which one is Laughing Buddha?

Green Crack by Humboldt has 60% Sativa genes while Laughing Buddha by Barneys Farm has 80% Sativa genes, which theoretically means that Laughing Buddha should have slightly narrower leaves and Green Crack slightly broader leaves. Going by that, I would guess in pic 4, that Laughing Buddha is on the left and Green Crack is on the right, backed up by the fact the plant on the left is a bit more stretched and has slightly longer internodes, typical behaviour for a (more) Sativa plant. Hope this helps,.... Organoman.

You could research other grow pics and see which one resembles yours. Or wait till you smoke other than that if you havent grown these strains before like me you wont know.

The broader leafed looks like GC to us. First bud right plant prob is GC has phenos that look exactly like the LB so... smell em.

I'm not 100% sure by any means.... but from looking at different grow pics.... looks like green crack has skinnier fingers and laughing buddha's are thicker.

No, but usually when people type in ''Green Crack x laughing Buddha'' it means that is a singular plant or a cross between those two. Not that they are growing two separate plants. Best way to know the difference between them is to identify them by their terpene profile. So check the description by the breeder regarding their terpenes, and identify them. Many times plants of the same genetics can show different phenotypes so you cannot tell just by appearance alone 100% of the time.