IMU-only tracking: good enough, or fundamentally broken?

thomas kim · 2025-12-27T03:24:03Z

IMUs are everywhere in wearables because they’re cheap, small, and low power. But let’s be honest: drift is real calibration is annoying long-term position accuracy is… questionable At the same time, a lot of successful products still rely heavily on IMUs + software magic. So what’s your take? IMU-only is fine with good algorithms IMUs need help (strain, pressure, optical, etc.) IMUs are a dead end for position sensing Bonus points if you’ve shipped something and have scars to show

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