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On Saturday, 2 July 2022 11:31:08 BST Tom via list wrote:
>
> I just watched the Gadget Show which compared a FitBit with a Xiaomi
> jobbie and given errors in the heartbeat readings from both (Xiaomi was
> dire - FitBit just awful) I'm not sure I'll bother.
Not seen that show, but such devices can be useful, especially to people who aren't yet performing recommended minimum amounts of physical activity.
Anecdotally the heart rate measures are sufficient to spot significant changes in resting heart rate.
That said I have medical device that doesn't like the standard deviation in my heartbeat on occasion, and the doctors can't find it on ECGs, although I'm pretty sure the cheap electronics is seeing something real (as it doesn't see it on other people), presumably not frequent enough or significant enough to be a concern.
But I assume the point of fitbit type tracking is to make sure the exercise is vigorous enough and not too vigorous and you probably don't need perfection for that.
The fibit was giving a heartbeat of 150 when it was over 180 and the Xiaomi was giving 90 odd when it was over 170 iirc. Both are dangerously inaccurate. I cant tell mine better from the noise in my ears!
Tom te tom te tom
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