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I couldn't think of any so I asked why people use exercise trackers. If the goal is exercise then I've managed to do without them so if you know what their purpose is then you can just answer. But if you don't know then I don't get why you're even commenting.

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Others might need to use a fitness tracker for external motivation even if you don't. Extrapolating from your experience of one is rarely useful (as I tried to demonstrate with my comment).

On top of that, other reasons are obvious from any review on them (health monitoring, sleep tracking, notifications integration, goal tracking...).

Still don't see the point but to each their own I guess. Seems like a waste of money.

One could argue that exercising is a waste of energy altogether.

You should be contributing that energy to something of value, eg. farming, construction work, postal work...

You can always reduce waste and optimise things further, but we are not strictly optimising, rational beings either.

Many people including myself are more apt to do something that can be quantified.

That's just bizarre.

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