SIGIL

The Metabolic Health wearable

Understand how food impacts your body.

The Sigil earpiece: a silver ear-cuff clip joined to a round sensor pod

How it works

  1. 01

    Put the earpiece on

    Sigil uses non-invasive optical sensors — no needles required.

  2. 02

    Get realtime feedback

    See how your system responds to each meal.

  3. 03

    Learn healthier habits

    Get feedback on how food choices, exercise, and time of day impact your body’s response.

Why it matters

Macro-tracking apps show what you ate. Sigil shows how it affected you.

Every body is unique. What you eat, when you eat, and how you move throughout the day all combine to create more or less impact on your body.

Sigil app screen. Metabolic stress: Moderate, 1.09. Lunch drove a sharper response than usual; on track to recover by 18:00. A chart from 06:00 to 22:00 shows two peaks after meal markers, the lunch peak higher than the usual-response line, with a dashed projection falling back by evening.

Why the ear

High fidelity physiological data

A woman in profile against a warm neutral backdrop, wearing the gold Sigil earpiece clipped to her upper ear

Compared to wearables on the wrist or finger, the ear has fewer motion artifacts, better blood vessel perfusion, and more consistent skin contact.

Questions

Good to know

No. Sigil is a general wellness product, not intended to diagnose, treat, cure, or prevent any disease. It helps you understand patterns in your own data.

About us

Made with care in Austin TX.

We are a small team of engineers, designers, and data scientists from companies like Whoop and Nike. Our mission is to help people understand how food choices impact their health and wellness. The Sigil wearable has been under development for 2+ years. We're excited to share it with you.