To all the people asking for blood pressure monitoring, can you point to a device that has this feature as part of a smart watch/fitness tracker? What are you all talking about?

Personally, my most realistic wanted feature would be ambient (room) temperature readings.

My dream feature would be solar charging/capture.

And rest days. Apple already includes them as part of competitions, so I'm not sure why they are struggling to include this in personal fitness tracking.

The idea of a rest day is flawed in my opinion, because you don’t need a day to sit and do nothing.

Given how fundamentally you appear to misunderstand the term/concept of a "rest day", I'm not so sure you should be broadcasting your silly opinion with such confidence.

A Rest Day does NOT mean sitting in bed all day. It means a day of recovery. The most elite athletes and trainers in the world endorse the concept.

This should help the next time you want to contribute to a similar discussion: https://www.uclahealth.org/news/how-often-should-you-take-rest-day