Astrolabe × Colmi R09

A small ring
for noticing.

Halo turns a quiet body signal into a moment of attention — for yourself first, and for the people you choose to let closer.

Private by default · reflective, not diagnostic

Body temperature,
held lightly.

Halo looks for changes in your personal pattern over time. Not a score. Not a verdict. Just a gentle prompt to check in: How am I, really?

your rhythmlast 7 days  ◌
steady enoughkeep observing

02 — mutual care

Let care be
an invitation.

Sometimes you want another person to notice with you. Halo makes that possible without making your body public.

01

You choose

Share one observation, a trend, or simply a “today is tender” signal.

02

They receive

Your partner gets context, not a command: a chance to ask, listen, and be present.

03

You decide

Keep, pause, or revoke sharing at any time. Your body stays yours.

“The point is not to know everything.
It is to notice enough to be kind.

— a faculty note from Castalia

03 — the object

Made to disappear
into your day.

FormColmi R09 ring, reimagined by Astrolabe
SignalSkin-temperature observations over time
GestureOne tap to return to yourself
BoundaryConsent before connection, always

A quiet beginning

Be there when
Halo opens.

Leave your email for early notes, prototypes, and the first invitation.

No launches without permission. No selling your attention.