Cardiogram

Hardware

wearable health monitoring

SHOW HN2015

62points
53comments
#457of 2,565 in 2015
Top 18%of 2015 by points

How HN took it

CuriousMostly questions and neutral comments

5 positive, 16 neutral or asking, 0 mixed, 5 critical, out of 26 comments about the project. Thread score +0.02.

Idea: 3 for, 1 againstPerformance: 0 for, 3 againstExecution: 0 for, 1 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Useful idea for continuous heart rate tracking on wearables.

    From 3 comments
    • 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
      brandonb on HN
    • I use a fitness tracker called MIO Fuse - it's a great сontinious Heart Rate Monitor, but Mio has very painful and useless both Android and iOS app. I wish to have access to raw…
      potomushto on HN
    • Thank you so much, I had hoped that there would be something like this inbuilt with motofit/google fit but was quite disappointed when I discovered how inadequate and manual it…
      ddmf on HN

Objections

  • Optical heart rate sensors are too noisy for true heart rate variability.

    From 3 comments
    • Capturing HR once a minute is of really limited use. More than benchmarking against resting HR, the interesting thing is to look at heart rate variability, and to do that you…
      saspect on HN
    • Photoplethsymographic heart rate requires a lot of algorithmic compensation for noise and motion artifact. There are some pretty sophisticated strategies available for beat…
      photonic29 on HN
    • Even the standalone optical HRMs (e.g., Scosche RHYTHM+) aren't good enough to do HRV[1] even though their accuracy compares favorably with the chest strap models[2] [1]…
      andrewjshults on HN
  • Notification keeps the sensor on and drains battery on Gear Live.

    From 1 comment
    • OP - I love the concept, but the execution isn't there. I installed it on my Gear Live, and it pops up a "Heart Rate" notification, that until acknowledged leaves the heart rate…
      bbarn on HN
  • Battery impact is a concern on smartwatches.

    From 2 comments
    • 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…
      DenisM on HN
    • I'd love to hear some thoughts on how this affects battery, especially on some battery-challenged devices such as the moto360 ?
      sekasi on HN

Requests

  • Calorie app integration.

    From 1 comment
    • Cool! How soon until you can tap into a calorie app/database (MyFitness?) and start to guesstimate the user's caloric burn rate each minute?
      stephengillie on HN
  • Access to raw heart rate data.

    From 1 comment
    • I use a fitness tracker called MIO Fuse - it's a great сontinious Heart Rate Monitor, but Mio has very painful and useless both Android and iOS app. I wish to have access to raw…
      potomushto on HN

Questions

  • How is data stored and is it sent to servers?

    From 2 comments
    • I'm curious about the privacy aspects of it. Can anyone elaborate on where and how the data is stored?
      ianstallings on HN
    • In a related question, does anyone know of any monitoring product (e.g. FitBit or whatever) that does NOT send your data to a centralized server outside of your control?
      _asummers on HN
  • How does it access the heart rate sensor on Apple Watch?

    From 2 comments
    • How does this work on Apple Watch? AFAIK, WatchKit doesn't give access to the heart rate sensor.
      martingordon on HN
    • Hey Brandon, I'm doing usability research at Virginia Tech on EEG's and EKG's. I'm trying to figure out how to do continuous heart rate for Apple Watch for an app/study. How are…
      blazingswrd on HN

Alternatives named

  • Fitbit Charge HR

    From 1 comment
    • 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
      kevlened on HN
  • Suunto watches

    From 1 comment
    • Suunto's watches have done that for a while now (5-6 years?), though they use a capacitive chest strap, rather than the optical method used by smart watches. Edit: And as far as…
      fancyketchup on HN
  • Cinch

    From 1 comment
    • I've been using Cinch up til now; it would be great if Cardiogram sent the data to Google Fit to graph like Cinch does!
      sdrothrock on HN

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

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