I'm not here to whine, just to dump some thoughts and experience. The only iPhone 12 I haven't had is the Max is and I do not plan on trying that one.
First, I will go into display. Nothing scientific here but I used an all black video on YouTube, pitch black room and brightness set to 45-55%. Only the IP12P had issues with green bleeding in this setting. The Mini and regular 12 rendered perfectly. Other than that the warmness that you have seen mentioned was essentially the same across all of them. Seems like a calibration that Apple set. I personally didn't have any issues with this.
Secondly, battery. Again, nothing scientific here. In my usage the Pro and regular worked out fine on a daily basis for me, but it was closer to dying by the end of day as compared to the IP11P. The mini unfortunately couldn't handle my day to day and needed a charge at some point or another during early evening usually. But Apple has awesome standby and that is true again with these models.
Weird issues with some apps and touch only on Mini. Didn't do a lot of digging on this, but it seemed the Mini had some weird behaviors. Examples: BOFA app was not showing Zelle correctly, tried basic troubleshooting but no go. This same app\restore on other phones worked fine. Touch was another one. Swipe up from lock screen, double tap status bar to go to top of page in safari, and random missed touches. Let me reiterate, this wasn't constant, but was noticed here and there.
Build. All had great build quality and I didn't notice any scratches or quality control type stuff. My preference ended up with the regular 12 due to it's weight. In one instance I didn't realize I had it in my pocket lol.
Things I miss:
I miss the extra assurance of having the bigger battery from the IP11P. Regardless of data the IP11P lasted longer for me.
I actually miss the 5.8 form factor, so much so I may grab another IP11P. 3 years with this form factor and it's just perfect for me.
I was blinded by the square edge phenomenon this year lol. I should have just kept my IP11P
First, I will go into display. Nothing scientific here but I used an all black video on YouTube, pitch black room and brightness set to 45-55%. Only the IP12P had issues with green bleeding in this setting. The Mini and regular 12 rendered perfectly. Other than that the warmness that you have seen mentioned was essentially the same across all of them. Seems like a calibration that Apple set. I personally didn't have any issues with this.
Secondly, battery. Again, nothing scientific here. In my usage the Pro and regular worked out fine on a daily basis for me, but it was closer to dying by the end of day as compared to the IP11P. The mini unfortunately couldn't handle my day to day and needed a charge at some point or another during early evening usually. But Apple has awesome standby and that is true again with these models.
Weird issues with some apps and touch only on Mini. Didn't do a lot of digging on this, but it seemed the Mini had some weird behaviors. Examples: BOFA app was not showing Zelle correctly, tried basic troubleshooting but no go. This same app\restore on other phones worked fine. Touch was another one. Swipe up from lock screen, double tap status bar to go to top of page in safari, and random missed touches. Let me reiterate, this wasn't constant, but was noticed here and there.
Build. All had great build quality and I didn't notice any scratches or quality control type stuff. My preference ended up with the regular 12 due to it's weight. In one instance I didn't realize I had it in my pocket lol.
Things I miss:
I miss the extra assurance of having the bigger battery from the IP11P. Regardless of data the IP11P lasted longer for me.
I actually miss the 5.8 form factor, so much so I may grab another IP11P. 3 years with this form factor and it's just perfect for me.
I was blinded by the square edge phenomenon this year lol. I should have just kept my IP11P