Everyone else makes wearables.
Hand-finished sterling silver, plain or 18K gold-plated. Heart, sleep and recovery — tracked quietly. No screen, no account, nothing for sale but the piece itself.
Hand-finished sterling silver, plain or 18K gold-plated: Bra is made the way a bracelet has always been made — to be worn close to the skin, every day, for years. The intelligence lives underneath: heart rate, recovery, sleep and temperature, read without a single glowing screen. You wear a beautiful object. It simply happens to understand you.
Concept imagery
Concept imagery
Concept imageryFrom the front, nothing but a polished bar on a woven strap. That is the whole point.
The bar is the jewellery — and the case. Everything else hides beneath it, in roughly 40 × 10 × 4 mm.
Optical heart-rate, 6-axis motion and skin-temperature sensors, a Bluetooth chip and a small rechargeable cell — up to 5 days between charges.
No screen, no glow. Only a small sensor window on the underside, resting against your wrist.





Proven wearable sensors — optical heart rate, 6-axis motion and skin temperature — only here it answers to a piece of jewellery, and surfaces only when you ask. No targets. No nagging. No glow by the bed.
Resting heart rate and overnight HRV — a gentle read on stress and recovery, measured against your own baseline.
Nightly deviation from your own baseline — an early hint that something is off, or the rhythm of a cycle.
Sleep stages and quality, breathing rate and a wellness blood-oxygen estimate — turned into a simple morning readiness score, computed on your phone.
A small DOXA on a black leather strap — a gift from his godfather, given to a baby who would not wear it for years. It never asked to be charged overnight. It never went obsolete. It waited in a drawer, then sat on his wrist, season after season, gathering small scratches and a warmth all its own — until it stopped being an object and became a part of the man who wore it.
I grew up beside that watch. Bra is made to join objects like it: a piece you fasten in the morning without thinking, that earns its patina, and that you might one day hand to someone you love — the way a godfather once did.
Because the bracelet has none, everything lives in a calm companion app — built around trends, not alarms. And it opens on the thing that matters most.
Nothing for sale
but the piece itself.
Nothing about you is packaged, profiled or sold. There is no buyer.
Every feature is yours the day it arrives. No paywall, ever.
The optional account is encrypted end-to-end — even we can't read it.
Bra is real, and it is early. The electronics already work on the bench; the jewellery is taking shape. Here is exactly where things stand — nothing dressed up as finished.
Development board · real photo
Heart-rate sensor module · real photoOptical heart-rate sensing running on a development board, and our first custom circuit board already streaming motion and skin temperature live to a phone over Bluetooth.
Working on the benchTurning raw signal into HRV, sleep stages and recovery — all computed locally on the phone, nothing sent to a server.
In progressMaking the bars in hand-finished sterling silver, plain or 18K gold-plated, and shrinking the electronics to fit a piece you would actually want to wear.
In progressFounder backing opens, production tooling is locked, and the first hand-finished pieces are made.
PlannedPieces ship to the people who believed first. We are targeting Q2 2027 and will report progress — the delays included — candidly.
Targeting Q2 2027When the Kickstarter opens, founders reserve these prices first. Every piece ships with the charging dock and lifetime app access — no subscriptions to follow.
Pricing shown for founder backers · final retail will be higher · shipping is charged separately through BackerKit after the campaign.