Replacement of the object in video

This video is the result of my work on the freelance service upwork.com
HTTPS://www.upwork.com/jobs/Talented-Individual-Team-needed-edit-Product-Video_~~14b6297396b8441a
In this work, the client wanted to change the device model to a video.
For work I was given a few photos of the new device.
In the top of the video you can see the old device,
and below is the new device that I added from the photos provided to me.