Investment means giving the money to someone who uses it for their business and pays you back a dividend (and you normally get some kind of share that can be sold later). Think stocks.

"Save in bank" is actually a kind of investment. You give money to the bank, they use it for their business and give you a small interest (if at all) as dividend, and you can withdraw your money. With current interest rates, this is pretty boring, the only advantage compared to keeping money in a safe at home is that it's easier to do most types of payment, and that you don't need your own safe...

Buying precious metals is not an investment because those metals won't work with the money you paid for them. It's mostly speculation (you hope that you can sell it for a higher price) and safekeeping (real value of money can fall due to inflation, while precious metals will mostly retain their "real" value). But you need to consider storage fees.

To decide which is better you need to know what you consider "good".
Do you want to maximize your ROI? Do you want to store your wealth safely? Do you want to enable entrepreneurs to build their businesses?

Onkel Paul

Yeah save will also have a risk because every currency will experience a rate change or inflation, but if you do not have a plan to save, then what will you do with the income from your investments? Are you going to use for investment again? Of course it would be very risky, saving its important dude, whatever the risk

Of course investment would be a better option to make money rather than saving money.As investment can be a risky step,but without risk you cannot make more money.

Yes agree, with the investment then we can get a profit up to 100% within a month, whereas with saving money we only get no more than 15% for a year or 1.1% a month.

Is it better to save money in bank or invest it online, in real estate or maybe gold?

It's better to invest it, because if we just keep it we will not get a profit, but if investing it we will get much better profit than just saving it, because investing is also a form of doubling money that is quite safe and good rather than gambling.