Quest Pro
The Meta Quest Pro is a flat focus headset made by Meta Platforms (formerly known as Facebook). It has the unique feature of not blocking out the user's periphery, which makes it pleasant to use compared to other headsets such as the Quest 2.
It is a standalone headset with the computer built into it.
The Quest Pro was Meta's first device to have full color passthrough.
The Quest Pro is targeted towards professionals, but it requires a smartphone app to setup and activate, which limits its usefulness.
Software
The Quest Pro runs on a variant of Android.
It requires a Facebook/Meta account to use, which makes it useless for anyone who doesn't want to use an account. This significantly increases the headache associated with development.
It is impossible to put a custom operating system on the device.
It requires the use of an iPhone or Android phone to approve the use of the headset.
Passthrough
The video passthrough on the Quest Pro is generally better than that on the Lynx R1. The Quest's passthrough is grainer and darker, but it has a lower response time and has better verifiable registration to the user's visual field.