VO2 Max does not supported more? 4.60 is there are at least three functions in VA4 which, after all these updates, still work properly?

Hi all. Subj.

I've reset my VA4 and wanted to calibrate calorie consumption. He's kind of crazy in VA4. up to 4000 per day, with a fairly calm mode and a pulse of rest 67 (I am 45 years old and overweight).

For comparison, watch active 2(on second hand) shows 2500, seems is true. I clicked on the exclamation mark, waited for GPS, chose a run. And ... I ran for more than 20 minutes, almost everything in the anaerobic zone.  20 minutes of running. The pulse went into a sword dance, I almost fell to ground!.  170! So what? And nothing. Garmin did not measure anything in 20 minutes of running.

I constantly compare them with Samsung watches. And I don’t understand is there are at least three functions in VA4 which, after all these updates, still work properly?
Water log? - no, sync, sync, sync

Calories? - no. Flattering deceiver.

Stress ? - no, gremlin lives in this widget.

Sleep? - no, does not take into account daytime sleep.

Saturation? - no, no no. normal scale 95-99. What this sensor really does well is that it scares those who don’t have a normal device.

Floors counting? - no, sometimes he finds them in my one-story house.

Heart Rate ? Mybe yes, but  gwa2 -more accurate (compared by polar H7).

Pedometer? Maybe

I try to find competitive advantages, but I find only one thing - an economical display.  Maybe my device is malfunctioning? It was bought just three months ago. Maybe it’s by crazy updates? Indeed, before updates, vomax2 worked properly. 

With best regards.