How Does a Smartwatch Know You're Moving?

Imagine your smartwatch is like a tiny detective inside your wrist. It has special sensors called accelerometers that can feel the slightest shake, like when you walk or run. Every time you move, even just a little, it notices and counts it as a step. That’s how it knows you're moving without touching anything.

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Examples

  1. Your smartwatch feels the shake in your wrist when you walk.
  2. It senses a little jolt every time you take a step.
  3. Even sitting down slightly moves it enough to count as activity.

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