Journal
Notes from the people who design our hardware and write our algorithms.
Science, 6 min read
HRV is the number everyone quotes and nobody explains
Heart rate variability is the most useful recovery signal you have, as long as you read it against yourself.
Design, 5 min read
Why we spent two years on the inside of a ring
The outside of the bits Ring took three months. The inner surface, where the sensors meet your finger, took the rest.
Science, 7 min read
Should you wear a glucose sensor if you don't have diabetes?
Two weeks with a bits Patch can teach you a lot. Here is what the data can and cannot tell you.
Company, 4 min read
Your heart data should not be behind a paywall
Why every metric your bits device measures is free in the app, forever, and what bits+ adds on top.
Science, 6 min read
How accurate is sleep tracking, really?
No wearable can see brain waves. Here is what we can measure well, and what we show with honest uncertainty.
Science, 5 min read
The one health number most people over 40 never check
High blood pressure has no symptoms. A cuff at home is the simplest way to know where you stand.