Withings and Function join up daily readings with lab results

Most people hold their health data in pieces. A smart scale reading here, a blood test PDF there, a sleep score on a phone. Withings and Function now say those pieces should sit together, and they have built the link to do it.

The two companies announced on 22 October 2026 an integration between Withings' medical-grade connected devices and Function's health platform. Function members can sync daily readings from Withings devices into the Function app. Function's lab results flow the other way, into the Withings app, next to activity, sleep and cardiovascular data. The result is a continuous record between blood tests, which usually happen once or twice a year.

Both offers are live now, but only in the United States.

How will it work?

The setup is simple. A user links the two accounts, and data moves in both directions. Withings supplies body composition, blood pressure and other daily measurements. Function supplies results from more than 160 lab tests covering the heart, hormones, thyroid, liver, kidneys, nutrient levels, inflammation and heavy metal exposure.

Function adds its Medical Intelligence layer, which is meant to read those signals over time rather than as single snapshots. Its membership costs $365 a year, about $1 a day, and includes biannual testing. MRI and CT scans are available for an extra fee.

To get people started, the companies have attached two offers:

• Withings users get a $30 credit on a Function subscription, applied automatically through a dedicated Function section in the Withings app.
• Function members get 10% off Withings products, available directly in the Function app.

Withings gave a practical example. A woman in her mid-forties notices disrupted sleep and a shift in body composition, though her routine hasn't changed. Alone, those signs are hard to interpret. Placed beside LDL cholesterol, HbA1c, ferritin and TSH, they give her numbers to bring to her doctor, not just a description of symptoms.

Why does it matter?

Context is the weak point of consumer health tech. A wearable can tell you that your weight moved or your blood pressure climbed. It rarely tells you why. Lab data supplies part of that answer, and daily data fills the long gaps between tests.

The timing also fits a clear market shift. The companies point to a fast-growing group of people tracking changes linked to GLP-1 medications. These users want to see weight, metabolic markers and cardiovascular signals move together, in something close to real time.

Eric Carreel, Withings' co-founder and chairman, described health as "a story told over time." Jonathan Swerdlin, Function's CEO, said health information "should live in one place." Both statements are marketing, but they describe a real problem for clinicians, who often see patients with fragmented records.

Caution is still needed. The companies have not published clinical outcome data for the combined service. More information does not automatically mean better decisions, and the quality of the interpretation matters as much as the volume of data.

The context

For the GCC, this is a preview worth watching. Saudi Arabia's Vision 2030 health transformation program and the UAE's national digital health strategies both lean on preventive care and connected records. Platforms such as Malaffi in Abu Dhabi and Riayati in the UAE aim to unify clinical data at system level. Withings and Function are attempting something similar at consumer level.

The region has a strong reason to care. Diabetes, obesity and cardiovascular disease rank high among the Gulf's public health burdens, and GLP-1 prescriptions are rising. Tools that connect home monitoring with lab markers could help patients and physicians catch trends earlier.

But the barriers are real. The integration is US-only, and Function's pricing and testing model are built for the American market. Gulf regulators will also have views on data residency, lab licensing and the sharing of health data across borders. Any regional version would need local laboratory partners and compliance with national health data laws.

Withings says it has more than 15 million users worldwide, so it already has a presence beyond the US. Whether a GCC rollout follows is an open question. For health leaders in the region, the more useful takeaway is the model itself: daily measurements and periodic labs, read together, shared with the doctor.