Is playing 4k on series x can reduce lifespan of my console compare to playing 1440p...

"The Xbox series S is a more than capable gaming console with an excellent power to price ratio that targets 1440p and can output upscaled 4k.

As a result you should not be getting significantly noticeable 'pixalation' over the series x."

The original poster bought an Xbox One S, not a Series S and was comparing it to an Xbox One X, not a Series X.

What resolution are you trying to run at

If 4k 120 Hz then no it won't run at thaf

The max for series s is 1440p at 120hz

It will play at 4k bur only some games and with issues

The series s is meant for 1080p 120 max

With suggested 90hz

The xbox series x and ps5 and switch pro are the only 4k consoles

One x does 4k at 30hz and ps4 pro upscales

no, that's definitely not the case it is designed to perform. They know exactly the results they're getting from the code that they give the hardware. It's not even a PC, there's no variable

Untill now i was playing 2k gaming only, i thought it will let my xbox last few more years, but yeah if you sure that 4k gaming doesn't make any chnage to life of hardware than i will play 4k onwords now....

Yes, The Xbox Series X will play at 1080p fine, but the Xbox Series X is a 4K gaming console,

If you're not planning to upgrade to a 4K TV / Monitor, I'd say it not worth getting the Series X in my opinion, you're much better off with the Xbox Series S as that is a 1080p / 1440p gaming console and you'll save some money if you're staying at 1080p,

at 4:45 has some info on the Series S.

https://youtu.be/7S3s7NCVzDQ?t=285

https://youtu.be/VIHny-XP8jM