@Roberto_m @gonzosurfer The HR is fine for daily and sleep HR measurements, works great for walking too. I have an Apple Watch Ultra 2 that has supposedly the best optical HR available. It does not accurately record HR during my intervals.
So, I do not know where you expect Suunto to find or manufacture an optical HR. None of them are good enough because the underlying technology is not good enough. However, for recovery, HRV during sleep, and all the other information everyone demands the optical HR is good enough. Because customers want and demand a watch to tell them how they are feeling, when to sleep, how to train and when to train manufacturers have no choice.
In part I agree with you as I would prefer an athlete-centered watch that does not possess OHR, does not track sleep, does not track HRV but is very thin and has phenomenal battery. I am a long-time Training Peaks user and the training integration with TP is essential for me, that is all I need. I train predominately by RPE.