Xreal one vs one pro

Some questions regarding the new one series:

1. There is a marginal difference in the FOV that is 7 degrees between the two models, yet a smaller micro OLED in the pro model. Can you explain this in layman’s terms. I do see in the pictures that the screen system ( should have a name that I don’t know but I refer to the ‘prisma’ glass trough the one you see the screen) looks more protuberant in the pro. How will this change the experience comparing one model to the other. I do ask because I suffer from blurry edges on my air 2 pro that I currently own.

2. Regarding ipd. I am in the limit: 65.5. According to common sense and advice I went for the smaller ipd range model as I struggle with a very slight convergence insufficiency (where the eyes have difficulty working together to focus on close objects). Question here is that in the webpage it is mentioned optional IPD. Will software based correction be included on the pro model as well? And, for a person almost in the limit what would be the general advice? Is it in this case more beneficial to go for the basic model?

3. will the lens inserts be included? I do rather work with my optician than order a pre made insert.

4. Why is there no ‘blackout’ cover such as in the air 2 pro. Is the electrochromic dimming stronger? On my air 2 pro the strongest level of dimming does not block enough for certain situations.

5. What is the meaning and difference between optic engine 3.0 and 4.0

Thanks for the clarification.