Polar H10 keeps disconnecting from Venu X1.

Turned off wrist heart sensor to try and force H10 to stay connected.  Does not work.  Anyone else have this issue?  (Tried both ANT+ and Bluetooth, same results.  Not issue with connectivity with Garmin 840 and H10.  Both devices (X1 & H10 are latest firmware versions)

At a point to return the X1 because the wrist heart monitor is also poor vs the H10.  About 20bpm less than actual.