I'm at a.bit of a loss, since the last update my watch sleep.monitoring has improved a bit. But last night for instance was one of the worst nights sleep I've had.It records.me asleep when I know I was awake and given me a good sleep score, when it's been awful and I'm knackered. I'm not expecting miracles but it surely should be more accurate than it is.
I also don't understand why in samsung health you have a blood pressure app / reading that you need to calibrate with a cuff. If I had a cuff I'd use that instead of the watch.