Ars calculates the size of the DualShock 4 touchpad: about 2.1” x 1”

A little image wrangling (and math) generates a general sizing estimate.

We know that your controller button is more than just a plastic accessory., It is your sidekick, your wing man, your battle buddy., This is why we use

eXtremeRate Replacement Full Set Buttons Compatible with PS4 Slim Pro CUH-ZCT2 Controller - Chrome Gold

PlayStation Controller Dimensions & Drawings

Please check the third picture of the listing. If your controller model starts with CUH-ZCT2, then fits. Or simply, if the light bar is on the edge of

eXtremeRate Replacement D-pad R1 L1 R2 L2 Triggers Touchpad Action Home Share Options Buttons for ps4 Controller, Mint Green Full Set Buttons Repair

Controller Touchpad Board for Sony Playstation 4 Dualshock 4 Replacement Part

Tihebeyan PS4 Controller Touchpad Replacement for Sony PS4 Game Controller Replacement Touch Pad : Video Games

DualShock 4 CHU-ZCT2U Touchpad Replacement - iFixit Repair Guide

The PlayStation 4's touchpad and the law of unintended consequences - The Verge

PS4 Controller Touchpad

PlayStation Controller Dimensions & Drawings

Precision Control: The feel, shape, and sensitivity of the DualShock 4 s analog sticks and trigger buttons have been enhanced to offer players

DualShock 4 - White

5 laptop trends from CES 2022 you can't ignore

eXtremeRate Replacement D-pad R1 L1 R2 L2 Triggers Touchpad Action Home Share Options Buttons for ps4 Controller, Black Full Set Buttons Repair Kits for ps4 Slim Pro CUH-ZCT2 Controller : Video