Training my smartwatch to track intelligence

(dmvaldman.github.io)

57 points | by dmvaldman 1 day ago

4 comments

  • echoangle 1 day ago
    > Often, it would also contradict how I was internally feeling. I’d wake up feeling rested, see my stats are low, and play a game of chess out of algorithmic rebellion, only to feel my mind up against a barrier and handedly lose.

    It would be better to only look at the stats after playing if you want to verify it, this could easily be a self-fulfilling prophecy.

  • Ethee 1 day ago
    The biggest thing for me is I don't understand how people can sleep with these watches on, it's so uncomfortable to me personally which is why the different ring technologies appeal to me more. I just wish either Garmin made one or that there was one I didn't have to buy a subscription to use.
    • jeroenhd 48 minutes ago
      When I started wearing a watch, it constantly distracted me and cause minor annoyance all day while I got used to it. At some point it just started blending into the background. Now, when I wear my watch on my other hand, I still have the same problem, but I don't notice my watch normally anymore.

      I've slept with my watch for a while (stopped because the battery is crap and I need to charge it every day or it won't last past noon the next day) and I've had the same adjustment period.

      I also think some people are just more sensitive to these things. Some sleep with full-on CPAP machines hooked up to their faces like it's nothing, but others can barely stand wearing clothes when they're sleeping. Plus, some watches are more comfortable than others.

    • fifilura 1 hour ago
      People used to sleep with watches 50 years ago too. You just get used to it.
      • mhitza 1 hour ago
        True. Though the difference with smart watches is that they tend to be significantly bigger in size than what common watches used to be like.

        Smart "bands" tend to be less perceptible.

        • formerly_proven 1 hour ago
          They’re not that much bigger than an automatic, though they are heavier than most.
          • fifilura 1 hour ago
            Yeah, they get bigger if you spend more money on them.

            I have a Garmin Forerunner 165, it is not very big, and not heavy compared to an old style watch made from metal.

    • thebruce87m 45 minutes ago
      Nylon straps are pretty comfortable. The default strap with the metal buckle would dig in to my wrist, and also it was difficult to have a perfect fit since you had to pick a hole. The nylon strap allows for analogue refinement.
    • jagermo 1 hour ago
      I'm the opposite; I do not like wearing rings. I have no issue with my watch, however.
    • xhevahir 1 hour ago
      I don't wear one anymore, but I used to put in on an ankle overnight. I would wear a sock on that foot so that I didn't tear it off with my other foot during sleep.
    • darkwater 1 hour ago
      I thought the same, I just got used to it after a few days (even if I wear a slimmer watch from Suunto)
    • andreareina 53 minutes ago
      The Garmin sleep tracker is reportedly pretty comfortable.
  • runjake 1 day ago
    I've tracked sleep using a number of devices and algorithms and I haven't found a single one that regularly aligns with what and how I feel.

    I know it's tracking real data, but the conclusions feel completely made up.

    What are other people's experience -- especially from those who are more bullish about sleep tracking?

    • angiolillo 7 minutes ago
      I find Garmin's sleep tracking "accurate" in that it typically matches how I feel the next day, but that also makes it not terribly useful because I don't really need a gadget to tell me when I feel tired. Mostly I wear the watch to sleep out of inertia and in case I need a flashlight in the middle of the night.

      But there have been three aspects of sleep tracking that have been mildly useful:

      1. A few times my heart rate variability went haywire and the sleep scores didn't match how I felt, and it turned out I was sick and had not yet noticed any symptoms. Since then it has been mildly useful to have a heads up when I'm probably coming down with something before symptoms show up.

      2. You can use their Lifestyle Logging to track how things like caffeine, alcohol, and various nighttime routines affect your sleep. I mean, I haven't discovered anything that's not already common knowledge, but somehow having hard data makes it more compelling. I suppose if I was going to trial any sleep aids then Garmin's correlation would be convenient and save me from having to maintain my own spreadsheet.

      3. It alters the suggested workouts if you haven't been sleeping well. Trivial to do manually, but it's a convenient reminder not to overextend.

    • esperent 1 day ago
      I track sleep and energy levels with a galaxy watch and there's a strong correlation with how I feel on a given day. Sometimes it surprises me, and day where I wake up thinking I slept well but after an hour or two I'll realize my energy level isn't great, and sure enough I'll check the app and see it's low, with a warning about my sleeping HRV or resting heart rate being away from my norm.

      It's not perfect - there are definitely days when it's wrong. But overall I have a target of keeping my sleep and energy scores in the 90s and it's helpful. I think the most important thing is to keep in mind that it's an imperfect measurements but it's still the best one most of us have for now.

    • wongarsu 1 hour ago
      There are a number of studies comparing these devices with clinical sleep tracking. Just search for sleep tracking on google scholar. My take is that consumer devices have gotten pretty good at detecting when you are sleeping, but are not really good at detecting your sleep phases
    • 121789 1 hour ago
      Garmin’s body battery is very close to how I physically feel
    • guzik 1 day ago
      by tracking sleep, what exactly do you mean by that? sleep phases, sleep score, sleep duration?
    • dmvaldman 1 day ago
      it's a lot of work, but something you could do is track how you feel (manually or some other way) and do a similar statistical analysis. chess elo was just convenient and aligned for me.
      • runjake 1 day ago
        Yeah, I didn't mean to discount your article. Pretty clearly, it's working out for you.

        I do have an iOS shortcut that tracks my mood with janky emojis. I use it at least once daily.

  • sinoue 1 day ago
    I hope Garmin sees your passion project and greenlights it for inclusion. You have the right approach to ensuring folks are at their optimal health to grow intellectually as a person.
    • dmvaldman 1 day ago
      thank you! i think it's ridiculous how little they invest in their developer ecosystem. i have been thinking about jumping ship to oura or whoop simply because of this.
      • gavmor 11 minutes ago
        Yes, likewise! I've bounced off their developer portal several times, and I've colleagues who note they're extraordinarily difficult to integrate with.

        I will gladly invest in a more accessible developer ecosystem.