Quiet Haptic Taps | Warm Glow Through Stone | Dual Mics | 2+ Day Battery | 316L Steel, 27 mm | Charges in a Starlight Box
Check on Kickstarter
🌙 | Meet Luna
Luna is a 27 mm steel moon you wear like jewelry, and it taps your chest for the little things. When one is due, you feel a tap, the opal-white face glows, and you hear what it is in your earbuds. Your phone stays in your bag.
About our video: it mixes camera footage with AI-made scenes, each marked as an illustration on screen. Our FAQ "What in our video was made with AI?" lists every AI part.
🤝 | Our Promises
📌 | Five Places to Lose It
👆 | How It Works
Mom's flowers before Friday. The deck you promised your team. Dinner with your sister at 7. On your phone, they get buried under everything else. On Luna, each one is a tap nobody else notices, right when it's due.
Wear it. Luna pairs with your phone over Bluetooth.
Say it once. Luna's two mics carry your voice to Samantha, our app on your phone.
Feel it. When something is due, Luna taps your chest. Only you feel it.
See it. The stone face glows.
Hear it. The details play in your earbuds, or out loud from your phone.
Luna works through Samantha and needs an iPhone or Android phone and an internet connection. Earbuds keep it private, and they're optional. Samantha runs on AI models from other companies; the Use of AI section below names them and says what Samantha costs.
You feel it. A tap on your chest gets noticed without pulling you out of the moment.
It's close to your voice. The mics sit a few inches from your mouth.
Nothing to check. No screen, so there's nothing to scroll.
It's jewelry. Worn over a tee or under a collar, every day.
🔒 | You Control the Mics
Tap Luna twice to turn the mics off. Tap twice again to turn them back on, or use the app. We're finishing the double-tap mute on our prototypes now. Luna has no camera. When the mics are on, your voice travels over an encrypted Bluetooth link to the Samantha app on your phone, then to Samantha's servers. Samantha keeps your transcripts, and the notes it makes from them, until you delete your account in the app; then they're erased. We sell nothing about you, to anyone, ever.
💍 | Made Like Jewelry
We write Luna's firmware ourselves: the tap, the glow timing and the mute.
🔋 | Battery Life
A 35 mAh cell. Today's prototypes run just above 2 days, depending on how long the mics stay on, and 3 days is our target. We'll share measured numbers from our first finished Lunas.
🌌 | A Box That Opens to the Stars
Open the lid and the inside is a night sky. Set Luna on its three charging studs and plug the box into the braided USB-C cable that comes with every Kickstarter Luna.
📐 | Specs: 27 mm of Steel and Stone
Size: 27 mm crescent, about 6 mm thick (design target)
Case: 316L stainless steel, mirror-polished sides and a satin back
Face: opal-white stone, light passes through
Tap: 6 mm haptic motor, designed to be felt only by you
Microphones: two TDK T5838 wake-on-sound mics, each in its own sealed chamber
Mute: double tap, sensed by the built-in motion sensor (no buttons)
Battery: 35 mAh; just above 2 days on today's prototypes, 3 days is our target
Charging: three contact studs, starlight charging box with USB-C, braided USB-C cable for Kickstarter backers
Wireless: Bluetooth LE, encrypted pairing with your phone
Water: splash and sweat resistance is our design target, not yet tested
Chain: 316L steel, 50 cm + 5 cm extender, attached
Works with: any iPhone or Android phone with the Samantha app; earbuds recommended
🛠️ | Where We're At
Luna is our first hardware product. Its case and circuit board are designed. Our first steel cases and faces were machined in October, and the finished case is being quoted with makers in Shenzhen. On the bench, our app already makes our prototype electronics tap and glow over Bluetooth. Our moon circuit board is in use, and we've ordered it in larger batches. Luna's mics stream to Samantha, and we're still working on the mute mechanism and charging. Then comes a pilot run with our manufacturing partner: we check every unit for tap, glow, mics and charging, then engrave and pack it. After FCC testing, full production starts.
⏳ | Timeline
Nov to Dec 2026: Board batches arrive and are tested. First finished Lunas in the steel case.
January 2027: FCC testing and Bluetooth qualification.
February 2027: Lunas ship, the engraved 300 first (estimated).
🙌 | How We Got Here
I'm Ojas. For most of my life I was on the path to becoming a heart surgeon. I was good at it, but it was slow, and I wanted to build things that change people's lives now. So I texted my parents, "forget premed, I'm going to go build things," and started building.
Between Tario, Dylan and me, we failed at 26 businesses before the 27th worked: women's health gummies that reached $1.2 million in sales. Then we got into Y Combinator at 19 and grew OpenTrade to 225,000 weekly users. The catch was that none of us used it. I emailed Paul Graham with the subject line "Idk if I'm building something I want." He replied in 11 minutes, and we shut OpenTrade down.
So we started over with one rule: build something we can't stop using ourselves. We wanted a computer we'd actually wear: small enough to forget, beautiful enough to show off, and useful every single day. That's Luna.
Tap “Ask a question” in the FAQ tab. We answer every one ourselves.
🌕 | The First 300, Engraved
Everyone has a moonshot, a goal deep inside them that life pushes a little further down each day. Luna pushes it back up, one little thing at a time.
The first 300 Lunas come engraved with yours. What will it say? Back Luna and tell us.
Ojas, Tario and Dylan
🎁 | Rewards
Every Luna comes with its starlight charging box, an attached 50 + 5 cm steel chain and a 2-year warranty, and Kickstarter backers also get a braided USB-C cable. Two Lunas are $849. You're charged only if Luna is funded, when the campaign ends on December 10, and Pledge Over Time splits any pledge of $125 or more into installments.
Samantha is our separate app, and no reward includes it. It's free for the first 6 months, after which all core features are available. Premium will be $20/month or $200/year after those 6 months.
