You are saying that the screen of the X6 and X6 pro are the same, however the Redmi note 13 pro 5G which is a rebranded X6 has a PWM of 713hz while the X6 Pro has a PWM of 1962hz. We need a full review of the X6 to confirm that
Even though the Xiaomi Poco X6 Pro and its Poco X6 sibling model share the 6.67-inch form factor and are both midrange smartphones, the addition of the "Pro" in the name makes the Poco X6 Pro the more powerful smartphone that also brings more extensive equipment.