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Show HN: Continous Heart Rate for Android Wear and Apple Watch

cardiogr.am

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Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#11

Post by mintplant »

brandonb wrote: post #6
mintplant wrote: post #4

Great! I've been looking for something like this. Uh, now I just need an Android Wear device...

I have a Moto 360 and like it a lot! It was recently on sale for $180, and I'm going to guess it'll be on sale again, since the Apple Watch is just starting to ship and new Android watches are expected to be announced around Google IO in late May. https://moto360.motorola.com/ Note: the heart rate monitors on these early devices aren't great! We have to do a lot of work to make sure the sensor works well and the grap…

Thanks! I guess I'll hold out for a while on the device, then. Good luck with Cardiogram!

Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#12

Post by brandonb »

DenisM wrote: post #9
brandonb wrote: post #2

Hey! I'm the OP. Let me know if you have any questions. Just for fun, this was my heart rate while launching this: https://twitter.com/AppCardiogram/status/591377862441046016

Is there any watch on the market that has enough battery to do real continuous HR monitoring? Last I checked, they all only measure continuously in the "sport" mode for an hour or two, and in the "regular" mode they measure HR once every 10 minutes or so.

We've had surprisingly good experiences—generally the beta testers are reporting 1-3% battery consumption, and I think we could sample more frequently.

I think if we can get true, beat-to-beat monitoring, the health implications would be huge. Doctors don't care a whole lot about steps, but they definitely care about heart rhythm.

Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#13

Post by anonymfus »

brandonb wrote: post #8
[deleted] wrote: post #3

[deleted]

I think Apple Watch is the very next platform, but I've heard good things about the Microsoft Band. How have you found the heart rate sensor?

Sorry, I don't have it yet. Also sorry for deleting the comment above.

Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#14

Post by brandonb »

sekasi wrote: post #10

I'd love to hear some thoughts on how this affects battery, especially on some battery-challenged devices such as the moto360 ?

Way better than I expected—on my Moto 360, total battery consumption is usually 1-2%, and the beta testers have reported the same. In my experience, the biggest optimization you can do for Moto 360 battery life is to disable tilt-to-wake, since the most power-hungry part of the watch is the display.

Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#15

Post by kevlened »

DenisM wrote: post #9
brandonb wrote: post #2

Hey! I'm the OP. Let me know if you have any questions. Just for fun, this was my heart rate while launching this: https://twitter.com/AppCardiogram/status/591377862441046016

Is there any watch on the market that has enough battery to do real continuous HR monitoring? Last I checked, they all only measure continuously in the "sport" mode for an hour or two, and in the "regular" mode they measure HR once every 10 minutes or so.

I have a Fitbit Charge HR that checks every second during exercise and every 5 seconds otherwise. The battery lasts about 4 days for me.

https://www.fitbit.com/chargehr

Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#16

Post by michaelwilson »

brandonb wrote: post #8
[deleted] wrote: post #3

[deleted]

I think Apple Watch is the very next platform, but I've heard good things about the Microsoft Band. How have you found the heart rate sensor?

In the first release of the Band's firmware, it wasn't consistently good (especially during workouts!), but it's gotten much better with the 2nd and subsequent firmware releases.

Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#17

Post by teraflop »

brandonb wrote: post #12
DenisM wrote: post #9

Earlier quoted context omitted.

Is there any watch on the market that has enough battery to do real continuous HR monitoring? Last I checked, they all only measure continuously in the "sport" mode for an hour or two, and in the "regular" mode they measure HR once every 10 minutes or so.

We've had surprisingly good experiences—generally the beta testers are reporting 1-3% battery consumption, and I think we could sample more frequently. I think if we can get true, beat-to-beat monitoring, the health implications would be huge. Doctors don't care a whole lot about steps, but they definitely care about heart rhythm.

Sorry if this is a dumb question, but 1-3% over what time period? Per hour? Per day? Or are you saying it increases the normal idle power consumption by 1-3%?

Re: Show HN: Continous Heart Rate for Android Wear and Apple Watch

#18

Post by brandonb »

teraflop wrote: post #17
brandonb wrote: post #12

Earlier quoted context omitted.

We've had surprisingly good experiences—generally the beta testers are reporting 1-3% battery consumption, and I think we could sample more frequently. I think if we can get true, beat-to-beat monitoring, the health implications would be huge. Doctors don't care a whole lot about steps, but they definitely care about heart rhythm.

Sorry if this is a dumb question, but 1-3% over what time period? Per hour? Per day? Or are you saying it increases the normal idle power consumption by 1-3%?

1-3% per day, as measured by the "watch battery" panel in the Android Wear app. (Mine is currently at 1%).
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