I used Galaxy Nexus which had OLED too (old, from 2011). Used it for 4 years, not seen any visible permanent burn-ins. There were temporary image persistence, n

I used Galaxy Nexus which had OLED too (old, from 2011). Used it for 4 years, not seen any visible permanent burn-ins. There were temporary image persistence, noise and vertical lines (especially when using outside during winter), but display was great overall.