Eli5: each time I run one km, my GPS connected watch vibrates. Which made me wonder: how is the vibration in connected watches, smartphones and others enjoyable items created?

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Eli5: each time I run one km, my GPS connected watch vibrates. Which made me wonder: how is the vibration in connected watches, smartphones and others enjoyable items created?

In: Engineering
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You know the roundabouts they have at the park? Where you can jump on and the other kids can push you round?

Well imagine a load of kids all jump on to one side, and as the roundabout spins it doesn’t work quite right any more and creaks and wobbles a bit as the other kids push it round.

In a smart watch there’s one of these but it’s really tiny. That wobbling of the roundabout is felt as a vibration.