My ancient 2013 OLED is fine
HTC One S, the only one in the original HTC One range to have an OLED screen, and mine is still perfect a whole 4 years later. I bought mine as end-of-line, it's a 2012 model.
It has come to something when a device is classed as 'old' at 4 years, and is 'impressive' because it still works...