pedometers in 2026 still accurate?

Been running a comparative accuracy test on consumer grade pedometers and dedicated fitness trackers for the past 6 weeks.
i tested Fitbit Charge 6, Garmin Vivosmart 5, Omron HJ-325, and a generic Amazon clip-on. 42 days, 10 fixed 1km routes, manual tally counter as ground truth.
Garmin came in at -2.1% deviation from baseline. Fitbit at -3.8%. The Omron pedometer hit -6.4%. The generic unit was at -14.7% and is basically unusable.
Hip mounted pedometers should theoretically filter out non-walking noise better than wrist placement, but the Omron firmware hasn't been touched since roughly 2019 based on the changelog. It drops stair steps almost entirely and misreads cycling cadence as walking steps.
The part nobody mentions is that all four devices inflated counts during treadmill use by 8-12%. Consistent across all 42 days. That's not a rounding error.
Starting the same protocol with two Apple Watch Ultra 2 units next week. Are there any hip clip pedometers with updated stride-length calibration released in the last 18 months, or has that whole product category just been abandoned in favor of wrist devices?