The one on Amazon is the upcoming Hasbro Elite black series. The one on the website are made for Disney. In this case, it was originally offered at Galaxy's edge in a smaller crate/box and the blade had to be bout separate. But they are now offering it in a box version with blade, stand, and belt clip.
In general the Hasbro tend to have better light and sounds along with extra blade effect like blaster reflect and cutting. The stands are nicer. The blade removal is usually more steps.
Both have the thin neck in static display but when you want the blade added, you have to switch out the top portion for the fat neck.
To give you an idea of what I am talking about, here is a comparison video of the two different Obi Wan sabers from the Disney Plus Series.