The former allows for four inputs, while the latter works as an Eight-way D-Pad that makes diagonal inputs easier.
Easy to swap out, watch a You Tu be video on how to install them, and it will take you about 15 minutes to finish the installment.
Compatible with Elite Controller Series Gen 2 ONLY, NOT Fit for Elite Gen 1 1698 controller.
What's in the box:
. (1)x ORIGINAL Metal Faceted D-Pad (Shock Blue)
(Important: The Controller and any other parts not included.)