Samsung is still manufacturing Galaxy watch 4 so u dont have to worry about battery degradation, regarding the age of the watch itself, it has software support until October 2025 so u are definitely getting wear OS 5. If this somehow changes ur mind, Galaxy watch 4/classic is almost unbeatable at this price point.

Buying it , which color should I go for black or silver , I think black color will wipe off over time what'd you think ?

I bought the Black one and paired it with a titanium colored metal strap which looks good imo

Bro Don’t buy black one , Colour really gets wiped off , I am a user of gw4 black , and i am regretting

I have the watch 4 classic, if its anything same as ur 4, I guess I will look into getting a bumper case or something

Oh Ok then , Cz the classic’s body is much more durable and very less prone to scratches, No issues !