New iPhone battery health is 74%

As Apple hasn't sold the iPhone X for four years, it can't be a new phone. It may still have been shrink wrapped when you bought it but that means it has been sitting on a shelf somewhere for years, the battery slowly degrading.

You can see about getting a new battery here:

Genius Bar Reservation and Apple Support Options - Apple

sulleman160 wrote: "how much am i going to spend if i change the battery"

Use Apple's “Get an Estimate” tool to review potential costs here:

iPhone Battery Repair & Replacement - Apple Support

õ¿õ¬

No. It’s not. If it was still factory sealed, it’s been sitting on a shelf for years and the battery has degraded, which is normal for all Lithium-Ion batteries… Get the battery replaced.