Most posture advice begins with a picture of how you should look: ears over shoulders, chin level, a straight line from head to hip. It is a tidy picture. It is also somebody else’s.
When we set out to build POIS, we decided not to start there. The first thing POIS asks you to do is look forward naturally. Not your best posture. Just how you usually look ahead.
There is no single right angle
People are built differently. They hold their heads differently, and the same person holds it differently at a desk, on a walk or at the end of a long day. Any fixed angle that suits one person will be wrong for many others, and wrong for the same person half the time.
So POIS doesn’t compare you with an ideal. It compares you with you: the way your head sits when you’re simply looking ahead, and the way it sits now.
Why “natural” matters
If you ask someone to stand up straight, they perform. The chin lifts, the shoulders pull back, and they hold a position nobody could keep for an afternoon. A reference taken from that moment would make every ordinary minute afterwards look like a failure.
A natural reference does the opposite. It accepts how you actually are, and it only notices the moments that genuinely differ from it: when your head has drifted a long way down, and stayed there.
Not your best posture. Just how you naturally look ahead.
What follows from it
- Fewer interruptions. A quick glance at your phone, a menu or a map is not a drift. POIS lets those pass in silence.
- No grading. There is no score to chase and no streak to protect. There is only a quiet sound when it matters, and then quiet again.
- Room to change. If your earbud moves, or your day changes, setting your natural position again takes a few seconds.
The aim isn’t to hold you in a shape. It’s to help you notice when you’ve drifted from your own, so you can look up and carry on.
POIS measures the angle of your head using the motion sensors in compatible AirPods. It doesn’t measure your spine, neck or shoulders, and it isn’t a medical device.