I got a video of a 4-engine jet landing at LAX on December 28, 2018 at 12:40 PM. Here's some screen shots from the video:
I think it is a 380, but....
I got a video of a 4-engine jet landing at LAX on December 28, 2018 at 12:40 PM. Here's some screen shots from the video:
I think it is a 380, but....
That is an Airbus A380.
There are probably many distinctive features. One of the easiest to see (in your third picture) are the wingtip fences:

(British Airways A380 wingtip, Wikimedia Commons)
The 747 has no wingtip device (-100 to -300 models), winglets (-400 model) or raked wingtips (-8 model).
You can also clearly see the strong dihedral on the inner wing (see e.g. this answer for an explanation). Other distinctive features are the ram air outlets (easily visible in the second picture, see this answer for more details) and of course the main body landing gear with 6 wheels as mentioned in the comments: