I walked 4,500 steps with the Fitbit Air vs Apple Watch SE 3

(Image credit: Dan Bracaglia/Tom's Guide)

I tested the fitness tracking performance of the Apple Watch SE 3 vs the Fitbit Air while walking exactly 4,500 steps, and I'm surprised by the winner.The Apple Watch SE 3 is Cupertino's latest entry-level, full-featured smartwatch and one of the best cheap smartwatches of 2026. The Fitbit Air, meanwhile, is a brand-new, diminutive, screen-free wearable and one of the best fitness trackers available right now.Both devices track tons of workout types and deliver similarly detailed post-effort insights, but which one is more reliable? To find out, I walked 4,5000 steps while wearing the Apple Watch SE 3 on my left wrist and the Fitbit Air on my right. As a primary control for tracking accuracy, I manually counted my steps, noting every hundred taken with a click of my trusty tally counter.I also logged my efforts using the Strava app on my iPhone 16 Plus as a control for distance, pace, and climb data. So, which wearable came out on top, the Fitbit Air or the Apple Watch SE 3? Read on.

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Fitbit Air vs Apple Watch SE 3: fitness tracking accuracy compared