Maybe worth me hanging fire after all to see what kind of a saving I can get on second hand Fenix 6 Pro with new model rumoured very soon. Actually saw one in the flesh at my local CEX, B grade for £300 but looked in great condition and there's someone offloading vouchers on the MM quite often for a further saving.
Also sleep tracking is quite important to me and Fitbit does a great job of it, but been reading that Garmin is pretty rubbish for it in general unless there's been improvements recently?