Mostly emotions but also price differences in execution. After your first trade or two live you will know......
Are you Trading the same account size that you plan on going live with? Are you profitable on Demo? The main difference is that when you lose in demo it's your money and you can't reset.
For me, the main difference between demo accounts with a real account is the psychological factor, but it helps to get to know the broker's platform well and try your strategy
Yeah it's the biggest difference unless you're scalper or momentum trader and see HUGE difference in execution.
Indeed, there is a difference, it must be taken into account and ignored in the demo - an account is by no means necessary.
I've noticed that many people don't take demo stats seriously, why ? Assuming that you have an automated strategy there shouldn't be any difference.
At first glance, we can say that there seems to be no particular difference, but it really exists, because the fact that you earn real money on a real account and suffer material losses means a lot.