THE NEXT GENERATION OF PERFORMANCE WEARABLE
Lactate. Glucose. Hydration. Antioxidant status. Performr shows what is happening inside your body while you train — so you know when to push, fuel, hydrate and recover.
From $35/month at launch · 1 free month per referral
Yellow: at launch. Grey: roadmap. Insights are illustrative, not clinical claims.
See how your chemistry changes through a session — and turn the signal into decisions on pace, fuel, hydration and recovery. Scrub through a 90-minute run.
From $35/month at launch
We measure actual molecules, not proxies. Alongside everything your watch already does.
Biosensing scientists who train like you.
“I’m a biochemist. PhD from the Francis Crick Institute and a career in health data. I’m also an athlete: I row, I lift, I coach, and I race HYROX, 4th in my age group in my last race. I knew from the lab that everything about performance runs on molecules, and from training that I had no way to see them. Blood panels gave me a snapshot weeks late. So we built the thing I wanted on my own arm. The exact concentration of molecules, live, while I train.”
“Twelve rounds is a fuel problem as much as a fitness problem. This is the first thing that shows me what I have left before I feel it.”
Business support
Route to Rise finalist
Member
Deep Tech cohort
Independent validation, RISES
The microsensor is under 1 mm long and sits superficially in the skin, far shallower than a needle used for a blood draw. In testing so far, most people report a light press when the module clicks in and little or nothing after that.
Clinical-level accuracy: every molecule is tested on-body against its established reference method, a capillary lactate meter for lactate and a CGM for glucose. Independent blood-reference validation with Liverpool John Moores University is underway and published before launch.
No. Performr launches as a wellness and performance device, manufactured under an ISO 13485 quality system. It does not diagnose, treat or prevent any condition, and it isn’t a substitute for medical advice.
Your data is encrypted in transit and at rest and is yours. You can export it or delete it at any time.
The band is rechargeable and lasts about a week between charges.
From $35 a month at launch: eight sensor modules a month, delivered to your door, each lasting up to two weeks. Every friend who joins the waitlist through your link takes a month off that, with no cap. Band pricing is announced to the waitlist first.
End of 2027, shipping in waitlist order, US first. Your position is set when you join and moves up as friends join through your link.
When you join you get a personal link. Every friend who joins through it with a verified email moves you up the list and earns you one month free at launch. There’s no cap: twelve friends is a year free.