The model he tested is a Fenix 7 (non Sapphire), so the GPS part (as he mentioned) should be taken with a grain of salt.
The HR sensor though is identical.
TLDR: poor sleep analysis, average HR monitoring for indoor/outdoor activities, below average taking the price into account.
There are comparisons with the AW 7 which is miles better on HR measurements.
I do hope they don't screw up with the rumoured rugged watch at Cupertino this fall.