I am brand new here too. It will show up on your phone on the upper right. Not the exact corner but near it. On right side of the phone you will see a red push button to take a picture or start/stop video. Just above that is a smaller button to swap between shooting images vs video. If you click that a few times you will see the indicator change. In photo mode it will tell you how many pics you can take on your memory, on video mode it will tell you how much time you have to shoot.
Paul
Look at this image
It is set to shoot 4K at 60 frames/sec and can shot for 2 Hours and 43 minutes.
Paul: Thank you so much for that info.it is very helpful. How can I change 4k to HD or standard ? Dose 4K stand for the resolution ? Again, Thank you.
Regards: Dallas