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How IT works
Function gives you access to 160+ lab tests per year. Withings turns daily measurements into long-term health intelligence. Connect them, and you stop guessing.
Smart scales, blood pressure monitors, watches, and sleep trackers— clinically validated devices that turn daily measurement into a continuous health record. The app turns it all into trends you can actually act on.
Explore Withings devices
Over 160 lab tests and personalized insights for whole-body health—spanning heart, hormones, metabolic, liver, thyroid, inflammation, and more. Get an action plan driven by insights from the world's top clinicians. An annual membership empowering you to live 100 healthy years.
Learn more about fonctionBETTER TOGETHER
Function's lab results reveal what's happening inside your body. Withings tracks what you do every day. Together, they show you cause and effect — over weeks, months, years.
Sync weight, muscle mass, body fat percentage, and visceral fat, from your Withings Scale with Function biomarkers like Glucose, HbA1c, and Insulin. Track how shifts in body composition impact metabolic risk over time.
Pair daily readings from your Withings BPM Vision with Function biomarkers like ApoB, hs-CRP, and Lp(a). Connect your patterns to the deeper cardiovascular risk factors only lab tests reveal.
TWO WAYS TO SAVE
“Withings was built on a simple idea: health knowledge should be as easy to access as stepping on a scale. With Function, we take a decisive step further: connecting daily choices to the biomarkers that actually drive metabolic and cardiovascular health. The daily signals our devices capture now meet the clinical depth of blood biomarkers, giving our users an understanding of their health that, until now, was simply not possible.”
Withings Chairman and Co-Founder
"Blood pressure and body composition shift between tests for reasons that aren't obvious. Withings tracks the daily shifts. Function reveals what's driving them at the biomarker level. Together, members get a clearer view of how their health is progressing."
Professeur Stéphane Laurent
Withings and Function now work together to bring your daily health metrics and lab results into one place. Withings tracks metrics like body composition and blood pressure every day. Function connects those trends with the biomarkers that help explain them, like Glucose, Insulin, ApoB, and Lp(a).
Yes. You’ll need an active Function membership and at least one compatible Withings device. Once connected, the metrics sync automatically.
Go to this page, select Claim now, and log in to Withings—or create an account if you don't have one. You'll be prompted to connect your Withings account to Function, then continue to checkout. Your $30 credit will be applied automatically.
Go to this page and select your preferred device. A promo code will be auto-applied at checkout. If you have any questions, reach out to Withings support.
All Withings devices are available, excluding BodyScan 2 and BodyFit.
Function membership is $365 per year. Withings users who sign up through [XX site] receive a $30 credit toward their membership, bringing the first-year cost to $335. Add-On Tests (Galleri® Multi-Cancer Test, MRI/CT, and others) are billed separately.
To connect Withings to Function:
- Log in to Function on web or mobile
- Go to Devices, then Connected Apps
- Select Withings and sign in to your Withings account
- Authorize the connection
- Once linked, data syncs automatically
To connect Function data to Withings:
- Start from the Withings app or website
- If you’re an existing Function member, you’ll be redirected to log in to Function and authorize the connection
- If you’re new to Function, you’ll be redirected to sign up before connecting
- Once linked, data syncs automatically
