Both Withings and Function members can benefit from a special discount! Details about the Withings/Function partnership, including unique discounts, can be found here.
What is Function Health?
Function is a membership service with a mobile app that offers 160+ lab tests chosen by the world’s top doctors to help give you the most complete picture of your current and future health.
The Withings App and Function App are integrated so device readings and lab results live in one place. Withings captures body composition, blood pressure, and more every day. Function connects those signals to the biomarkers that explain them, like Glucose, Insulin, ApoB, and Lp(a).
Your health history (from the Withings App) is shared so Function can tailor insights to you. Your Function membership includes 100+ biomarkers, and you can request optional add-ons anytime.
- Complete initial testing in one short appointment
- 100+ biomarkers included and optional add-ons
- Schedule at 2k+ labs nationwide or wherever you are — in select areas.
Blood draws are done at Quest Diagnostics locations (2,000+ nationwide), booked after signup. A visit takes about 15 minutes. The first annual draw may be split across two visits within about 10 days. Membership includes 100+ tests at the annual draw and 60+ at a mid-year follow-up.
Membership, Cost, and Eligibility
- Function membership is $365 per year nationally. Withings users who sign up through Function or directly in the app receive a $30 credit toward their membership, bringing the first-year cost to $335.
- Optional add-ons (Galleri multi-cancer test, MRI/CT, and others) are billed separately. Pricing is Function's and can change, so defer to Function for specifics.
- Eligibility is limited to US residents 18 or older, except those who are currently pregnant.
Please see our dedicated articles for Function/Withings users: