It's a fast charge. Because the power it supports is only 33w, it can not reach a flash charging standard, according to the current standard, the power reaches 60w or more to be considered as a flash charging standard. Flash charge is just a name for fast charging.
x60 is 33w compared to what's over 60 w is not fast but it's OK. Now mobile phones are quickly charged can be considered flash charge.
Fast charge
vivoX60 series does not support wireless charging, that is to say, the high-powered version of vivoX60 Pro does not support wireless charging, and the fast charge of both mobile phones is 33W.