The crypto industry is more volitile than the forex market. So it can give more profit than forex within a short period. But it is also more riskier that a trader can loss money faster.

The forex market is highly regulated and established. So you can easily carryout trade safely in established platforms. The crypto industry is more complicated that you need to do more research to verify the coins or tokens you want to deal on.

You can put in small amount in crypto trading end up making big profit if you are lucky. A forex trader might require more funds to make a high profit.

Scammers are present in both businesses but I suspect that there are more in the crypto space.