Sleep pulse OX and RHR values not corresponding between the watch and GC

Hi,

sorry if this has been already asked.

The stuff:

Epix pro gen 2, fw 18.14

iPhone 13, iOS 17.7

Garmin Connect 5.5

The issue:

Checking these two metrics I can see that the ones on the watch differ from what GC shows after the sync. I have to say that sync is almost never a "one-step" process, as I have to tinker with BT and watch icon to get the synchronization complete; anyway the pulse OX and the RHR seem to be the ones that don't look the same on both the watch and the app.

Thanks,

Fabio