As explained on the other thread, later iPhone cameras will literally take a sh*t with the RAM X mount, due to the vibrations. This is not the case for every smartphone out there though- I ran a 6S Plus over the course of 4+ years on different bike/stem mount setups, camera didn't even flinch.
You can try to get some foam and make some sort of dampening pad to help ease the vibrations if you want, but as someone who has been to the Apple store for repairs/replacements more than 5 times over the course of 6 months, I don't recommend you try your luck, at least not without having Apple care or some other form of warranty.
The RAM X cradle works wonders, provided you have all 4 rubber pads AND use your corner "net" restrain. Why it's too much to handle for the newer iPhones is beyond me
Is it the bike that produces vibrations that are too intense? or is it that the phone/camera design is flawed from the go? Who knows
You have been warned