Nabeel Cheema

Hi makers,

Most wearables are good at telling when you're asleep. They're much worse at telling when you're awake: if you lie still, many devices count it as sleep. Sleep stages land somewhere in between. And Apple, Oura, Garmin, Whoop and Fitbit all build their scores differently, so the same night can get very different numbers.

Anna D. Zych, PhD, a neuroscientist and Health Science Lead at Momentum, goes through all of this in a webinar that premieres Wednesday, 7 October at 16:00 CET. It covers what good sleep actually looks like, how wearables compare to a sleep lab across ten devices, and how to approach building sleep scoring models.

If you're building anything with sleep or recovery data, it should be a useful hour. Everyone who signs up gets the recording too.

I used to write changelogs the day after shipping but i d always forget half the details and end up with vague updates.

Now i write a quick line every time a feature gets finished. It keeps everything clear and actually helps me notice if a feature is too confusing before going live.

When do you guys usually prep your update notes and do your users even bother reading them?

Hey Product Hunt community! Most modern smartphones are packed with sophisticated hardware sensors accelerometers, gyroscopes, magnetometers, pressure sensors, and light detectors. But how often do we actually harness their raw power?

We built Phyphox (Physical Phone Experiments) to unlock these hidden capabilities and make science interactive for everyone!

Here is what you can do with Phyphox: