I'll tell you one thing that caught me by surprise: the sheer number of posts here where all the people who make the videos decided theirs should be about Apple products this week.
I actually would have kept my Iphone 11 PM but what sold me last year was the camera now being able to shoot 3D spatial video. It works really well and the quality is actually better than my 3D camera rigs except the my insta 360 EVO in 3D VR mode. Most people do not have a way to view 3D or VR but I do and I can now shoot 3D with the iphone quickly and then wirelessly transfer the video to my Meta Quest 3 and in a few minutes be watching it in 3D.
One warning for anyone who is planning to get a new iphone 16 to shoot high quality video is that you should get the extra storage option. I have quite a few video clips on mine and lots of apps and that nearly filled the base version of 256GB. That leaves me another 256GB for storing those large 3D spatial videos. The 512GB is well worth it for those wanting to shoot video, especially long form like 30 minutes.
I shot two one hour shows in 3D on a cruise ship and had plenty of storage and battery and never missed a frame. Now the downside is Apple limits the transfer of these long 3D videos to my Meta Quest3 to about 15 minutes when loaded with Spatial 3D meta data. I checked with Apple during my demo of the Apple Vision Pro and we had the same problem transferring my 12 minute clip to the AVP. I was successful in transferring a 6 minute clip and it showed up with very high quality in 4K 3D.
There are many reasons why someone would want the new iphone but over the 15PM there is not much except the larger size, the faster processor for real time AI and the camera action button which is nice for doing zooms while shooting. BTW 3D Spatial Video does not allow zooming or changing any photographic parameters. Focal length, exposure f-stop etc is locked.
Here is a little accessory I use when planning to shoot with my iphone. It works really well.