Continous heart rate for Android Wear and Apple Watch

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I'm sure the first question on everyone's lips is battery life. Would love to get the founder here to understand how the battery life will be affected by this and does Apple actually have an API that lets you monitor the heart rate every second
@nikunj hiya! Thanks for posting this on PH. For Android Wear (Moto 360), we've been seeing surprisingly low battery consumption—mine is at about 1%, and I often get >24hrs of battery life from the watch (wear it during sleep). For Apple Watch... We'll know soon! Mine is supposed to arrive tomorrow. :) The sensor is the same underlying technology as the Fitbit, Moto 360, LG G Watch R, etc., so I'd be shocked if the power consumption profile were vastly different. (As a technical point, we do sample—take the heart rate once per minute, as opposed to leaving the sensor on 100% of the time. The device drivers seem to get kind of upset if you just leave the sensor on.)
Maybe you could turn this into a leaderboard at Soulcycle classes. 😉 cc @corleyh
I like @rrhoover's Soulcycle idea . Another variant: could DJs use it to see if the audience is feeling the song they're playing, and switch it up if not?
Beginning today, any Fitbit device with an optical heart-rate sensor can link with the Cardiogram app on their iPhone or Android phone. Like Fitbit's smartphone app, Cardiogram uses the data collected by your fitness band to paint a visual picture of your health, including emotions and sleep. There are some new smartwatches available in which this types of applications are already installed if you want to know about this smartwatches you can go through by this website