The Pro's brighter display is the meaningful upgrade and makes it the better buy for newcomers. Existing Air 3s owners may find the improvement too incremental to justify replacing a...
Pros: offline functionality, cloud dependency
Cons: tracking stability, power efficiency
The Air 4 Pro improves audio and adds HDR10, but Air 3s Pro owners often see too little day-to-day difference to justify upgrading. It is a stronger buy for newcomers...
Pros: heads-up display, charging method
Cons: low-light visibility, Bluetooth connectivity
Battery life and 3K video are the main reasons to move from Gen 1; many owners can comfortably wait unless those two improvements matter a lot.
Pros: media playback, lens clarity
Cons: low-light visibility, heads-up display