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I ran a 20-mile race wearing four fitness watches (like an idiot); here's what I learned

I wore a Garmin, Apple, Google, and Coros watch for a 20-mile marathon tune-up. I felt really silly, but the stats were illuminating.

That Apple workout glitch aside, all four watches were pretty close in total distance and pace and were basically in lockstep in areas like average heart rate, steps, cadence, and stride length. Under tree cover, the dual-band Fenix 8 (red) and PACE Pro (orange) stayed consistent while the GPS-only Watch 3 (blue) wavered more. Garmin is still my preferred running brand because I've been using its training load, suggested workouts, and recovery data for years, and a lot of runners trust its accuracy.

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