Bank investors have more certainty because there capital is completely safe but they give 8-10% annual profits to the investors of per year. But it is comparatively less in terms of profits.
On the other hand you will get constant profits from crypto as if you are experienced in trading then daily profits is possible. Otherwise you can get profits by investing. However crypto investment puts your capital at greater risk (main point).
The risk of investing in crypto is extremely high, make sure you are ready for that. No-one can guarantee that you invest in crypto and get profit. You may loose your money as well.
But with that risk you can also earn more, buy when market is bearish and sell when market is bullish