Most important to me is storage, BT range and speed, followed by battery life and brighter screen in bright sunlight that my 15PM suffers from now.I'm looking forward to read about your experiences with your new iPhone 18 Pro Max.
The traditional iris addition is less important as I don't use the iphone for my production video much at all. If I can capture a good image stabilized 3D spatial video clip to insert in my 8K60 VR1803D, I'll be happy with it. Soon, needing to shoot in 3D spatial won't be necessary as there is a new software using AI to convert 2D flat screen to 3D Spatial that is as perfect as any iphone will shoot. Owl3D 2D to 3D converter