Will this worth with the Apple Watch? I've worn 2 different heart rate monitors/calorie counters and the Apple Watch is way out.

I discussed the results with a trainer and we worked out the the Apple Watch is about 300/400 calories out. I'm disappointed with the Apple Watch as I only bought it to monitor my progress and wanted to know if there's an aid I can use that will work with the Apple Watch more accurately.

Wahoo TICKR Heart Rate Monitor

Wahoo TICKR Heart Rate Monitor

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