Validated in vivo
Raman-based glucose sensing has been demonstrated in living tissue, and our prototypes show correlation between optical readings and reference blood glucose.
Continuous glucose monitoring
Walletmed is a wearable that reads your glucose around the clock. Nothing stuck to your skin, nothing to replace, nothing to think about. Just wear it.
Why Walletmed
Today's monitors work, and they never let you forget you're a patient. A patch on your arm at the beach. A swap every other week. A calendar of appointments for something your body does every second.
The burden is documented, not anecdotal: in patient-preference surveys published by Engler, Routh and Lucisano in Clinical Diabetes (2018), the discomfort and visibility of devices worn on the body ranked among the leading barriers to CGM adoption, and a fully implanted sensor is what patients said would remove them.
The system
With Walletmed, monitoring means one thing: having your wearable on. No applications, no adhesives, no schedule. You wear it, it measures.
A slim case that clips onto the watch you already wear. Your smartwatch becomes the reader, with nothing new on your wrist and nothing new to charge.
In the frame: the strap, the case with its optical module, your watch, and the implant, the small pin in the middle. That is the entire system.
The results live in one place: your glucose now, your trends, your alerts, shared with your care team when you want.
The wearable works thanks to a tiny implant placed under the skin in a single, minor step, so small that from then on monitoring is nothing more than wearing your Walletmed. That's the entire story. There's nothing to maintain and nothing more you need to know.
One case, one app, one small implant placed once. That is the entire product.
Technology
You just wear it. The smart case clips onto your watch and does the measuring so you don't have to.
A gentle pulse of light. A safe laser reaches just beneath the skin, where the body's chemistry lives.
The light comes back changed. Glucose molecules scatter it in their own signature pattern, a fingerprint written in light.
Your reading appears. Spectroscopy and machine learning turn that fingerprint into a number on your phone.
Compare
Continuous glucose monitoring changed diabetes care. Walletmed is designed to be the first permanent system: set up once, never replaced. It changes what monitoring costs you to live with, measured against the sensors people wear today.
| Walletmed | Stick-on CGM patches | Short-term implants | |
|---|---|---|---|
| How often you deal with it | Once, then never again | Every 10–15 days, at home | Every 6–12 months, at a clinic |
| On your skin | Nothing adhesive, just a watch case you take off whenever | Adhesive patch, worn 24/7 | Transmitter taped over the implant |
| Daily routine | None: no calibration, no site rotation | Applications, replacements, adhesive care | Calibrations, charging the transmitter |
| In the body | Passive optics: no battery, no electronics | Filament under the skin with each patch | Powered sensor capsule |
| Waste per year | Nothing recurring | ~25–35 disposable sensors | 1–2 sensors plus adhesives |
Comparison by category: stick-on CGM patches (e.g. FreeStyle Libre, Dexcom) and short-term implantable systems (e.g. 180-day sensors). Walletmed is an investigational system in development; rows describe its design goals, not a cleared product.
The platform
The same light that reads your glucose can learn to read more. Cholesterol, lactate, ketones: the molecules that describe how your body is really doing all leave their own fingerprint in light.
Because the measurement lives in optics and software, Walletmed is built to grow without asking anything of you: the system you set up once becomes a fuller picture of your metabolic health over time. One system, every metabolite it can learn, for life.
Our promise
Metabolic disease steals decades of good life. We build technology that gives them back: monitoring that fades into the background, so health becomes something you have, not something you manage.
The app
Glucose · now
97 mg/dL
↗ rising slowlyTime in range86%
Science
Raman-based glucose sensing has been demonstrated in living tissue, and our prototypes show correlation between optical readings and reference blood glucose.
Developed with European photonics programs and university laboratories, from optical design through prototyping to clinical study preparation.
Walletmed's implant-assisted optical measurement is protected by two patent families, covering the method from the optics to the reading itself.
Built under medical-device design controls, with ISO 10993 biocompatibility testing on the path to future regulatory submission.
Where we are
Walletmed is built with Europe's photonics networks, university labs and research institutes, and the milestones are already behind us, not ahead.
2× innovation grant
Research partner
Research partner
Laboratory collaboration
Polish Photonics Technology Platform
European photonics communitySay hello
Want to be first in line when Walletmed launches? Thinking about a partnership? Or just curious how it's all going? Whatever brings you here, we're easy to reach and we reply to everyone.
Joining costs nothing and commits you to nothing. You'll get real progress updates a few times a year, and first access when pre-orders open.
Partnerships, investing, press, or a question that fits no category: hello@walletmed.com. A real person reads every message.