Show HN: Pulse – the wearable for n=1 habit experiments
10 msingh_5 12 7/9/2025, 2:29:37 PM blog.pulse.site ↗
Most wearables collect data and hand you a dashboard.
Pulse goes a step further: it helps you run experiments with your own habits, and actually shows you what makes a difference.
No subscriptions. No locked features. Just tools to test what improves your sleep, focus, or energy.
This started from my own burnout trying to optimize performance. I tracked everything, changed habits constantly, got a bunch of wearables, but could never figure out what was working vs wasn't.
Most devices just give you a score based on some generic/population model and leave you to figure it out. They treat everyone like an average.
With Pulse, we wanted to build something different -- a way to actually test what works for your body in real life.
Happy to answer questions about the tech, hardware, or what it took to get from idea to (almost) shipping
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Like is the value more in how you visualize the data, or is it actually doing something different behind the scenes?
what I found was that it often throws 5+ variables into one “correlation”, creating a lot of noise where it ends up suggesting X impacting your sleep, when it could have actually been Y.
Pulse is built for n=1 experiments: you isolate a habit (like less screen time, consistent wake up time, caffeine impact), test it, and see if it actually helps your sleep better or not. think self-controlled studies