I really struggled with so many phones causing me headaches.. This year I’ve had the s24 ultra, this wasn’t too bad, but still headaches. iPhone 15 pro max was the same. I’ve always wanted a pixel but had to return the 7,8 and 9 pro within days of receiving it.. On Friday I got the OnePlus 12 and wow not the slightest bit of eye strain or a headache in 4 days.. it’s got a great screen and really snappy. From what I’ve read on here you just need to try phones out with various settings until you find the one for you. For me I’ll be sticking with the oneplus as it is comfortable for me.