moonshotReserve $499
Luna glowing at a woman's collarbone, her face in shadow

A personal computer around your neck.

It hears your day and speaks up before you ask.

Reserve Luna

$499 · Backed by Y Combinator

Built by a team from

Luna listens 24/7, and gets things done before you ask.

It moves your run to 6, drafts the hard email, and books dinner with your sister.

AI versions, built from their own words.

Moments people told us about on our calls.

A nurse in scrubs walking a hospital hallway, Luna glowing at the chest

SamanthaRoom 12’s daughter asked about hospice. I added it to your 4:30 debrief.

A music teacher with a French horn and two young students, Luna glowing at the chest

SamanthaYou promised Jayden a French horn by Thursday. I emailed the music office.

A mom cheering at her kid’s basketball game, Luna glowing at the chest

SamanthaMia’s game moved to the north gym at 6. It’s on your calendar, and I told Dan.

A man driving, Luna glowing at the chest

SamanthaYour 5:00 with Jordan is in 15 minutes. You promised him a new quote. It’s ready to send.

A dad pushing a grocery cart with his toddler, Luna glowing at the chest

SamanthaGrab the oat milk Ava likes. And your prescription is ready at the pharmacy in back.

A student walking out of a lecture hall with coffee, Luna glowing at the chest

SamanthaProfessor Kim moved the exam to Friday. I made you a study guide from her lectures.

A note taker that hears your whole day.

A ChatGPT that actually gets you.

The greatest minds in the world, in your ear.

It’s one thing: meet Luna.

It rests and charges in its case.

Speaks up before you ask.

SamanthaMom’s peonies need ordering today to reach her by Friday. You told Jess you’d handle it.

Remembers what you’d forget.

Dan said the launch date was “fine” three times.Heard in standup

You told Maya you’d send the deck.Heard on a call

Her voice, in your earbuds.

Works with the phone and earbuds you already have.

Earbuds in their case

27mm

A mirror-polished rim and light-through stone.

Luna with its polished rim, on its chain
Luna glowing at a woman's collarbone, the size of a coin

The size of a coin.

Glows when she has something.

No screen. A soft light, then her voice.

Now look inside. Precision, down to the board.

  • 316L steelThe steel of fine watches, for the shell and chain.
  • 0.5 mm stoneA milky face, cut to ±0.03 mm.
  • Our own boardEvery part placed for Luna.

Rendered from Luna’s real CAD and circuit board.

The ultimate AI agent, designed for you to reach your moonshot.

Two thousand years ago, the first computer followed the Moon. Now the Moon works for you.

Luna at the centre of the dial

Drag or flick the dial, or tap any app.

Samantha is ready when you are.

What’s your moonshot?

Luna

$499

Engraved with your moonshot.

Luna glowing on its chain

Full refund any time before it ships.
A full year of Samantha included. Works with any iPhone or Android phone and earbuds. Ships early 2027.

Not ready yet? Get the launch email.

Questions? Talk to a cofounder: (425) 623-0692