Every time I see my watch telling me that I am burning calories I am not really sure if I should trust it or not, what is your opinion about that ?
Discussion
My trainer/nutritionist have confirmed that most smart watches (at least apple and garmin) are fairly accurate for cardio, or elevated heart-rate tasks. But for strength training you'll never see the actual calories consumed in rebuilding muscle.
Id have to think, for those with more physical work I can imaging it's probably fairly worthless since it can be a decent mix of muscle breakdown and cardio.