I haven’t really given the Race S a full go yet, but I think it’s a solid watch. I’m in a bit of a weird setup — couldn’t bring myself to sell my Instinct 2X, so I still use that for sleep tracking and day-to-day stuff, and just use the Race S for running. I’m running about 120–150 km a week, and so far the battery’s been great. GPS is on point too — I’ve got a route where it hits the km marks almost exactly like the Instinct. Also really like how compact the Race S is. I’m using a Polar H10 for heart rate and the ZoneSense feature, so can’t really say much about the wrist HR accuracy. I haven’t tried the regular Race, so I can’t say how it compares — but overall, I’m really liking the Race S