It is capable of doing it, but it still has not been approved by the FDA. So, theoretically, eventually it will. But it still performs many other health functions. If that does not satisfy you, you should return it.
My Galaxy Watch 5 did before it stopped connecting to my Galaxy S22+. Had to send it back because it stopped connecting, wanting to do a factory reset. Got a Tozo S5 which battery lasts WAAAY longer but it won't check blood pressure but that's alright since I have a meter to do it.
Check out shm mod by Dante 63. You have to do adb and stuff to get it working but I'm now able to take blood pressure in usa. Seems relatively accurate next to my 15 dollar cuff. Edit. I got it off xda
