So for Air 13 inch it’s 720p FaceTime HD camera
And for Pro 14 and 16 inch it’s 1080p FaceTime HD camera.
MacBook Air has 2560 x 1600 resolution and 14 and 16 inch MacBook Pro has 3024 x 1964 and 3456 x 2234 resp. Brightness in 13 inch Air can go upto 500 nits and the 2021 model of Pro has 1600 nits.
For a college student or an occasional worker MacBook Air is best and will likely do a fantastic job & if you are a creative professional then you should consider MacBook Pro 14 or 16 inch because of the larger size of display and upgraded SoC.
For more information With Tips and Tricks related to MacBook