Function Health
$365/yrStrong price per marker. Best for a broad baseline, weaker if you need a doctor who already knows your history.
Buying guide · Versus / cost / worth it
Function Health vs InsideTracker vs Oura vs WHOOP: which blood panel is rational?
Blood panels are becoming the new tracker subscription. The useful question is not who tests the most biomarkers; it is who gives you a result you will act on, at a cadence you will keep, with a clinician available when a number is abnormal.
Answer-first
Function is the broad low-cost annual panel, Oura is the cheapest ring-integrated panel, WHOOP is the strongest wearable-plus-labs system for committed users, and InsideTracker is the dashboard route if you value interpretation over raw marker count.
Agewell verdict
Buy bloodwork for a question. Do not subscribe to a permanent anxiety dashboard.
The shortlist
InsideTracker
$149 membership + testsGood if you already have labs or want its analytics layer. Two Ultimate tests can cost materially more than Function.
Oura Health Panels
$99Good one-off baseline for Oura members in eligible US states. Limited by geography and age eligibility.
WHOOP Advanced Labs
$199-899/yrBest if you already live in WHOOP and will retest on schedule. Watch the expiring credits.
The comparison that matters
Function wins on breadth and current sticker price: $365 per year for 160+ lab tests, with two testing moments. Oura wins on cheap integration: $99 for 50 biomarkers if you are an eligible US Oura member. WHOOP wins on closed-loop behavior data, because labs sit beside sleep, strain and recovery. InsideTracker wins if you want a dashboard and upload workflow more than a maximal test list.
None of them replaces a physician. A high ApoB, abnormal liver enzyme, low ferritin, high A1c or unexpected hormone result is not a content insight. It is a follow-up pathway.
The hidden cost
The hidden cost is not the blood draw. It is the downstream decision tree: repeat testing, primary-care visit, specialist visit, imaging, anxiety, and occasionally a helpful catch.
A panel is rational when you define the next action before the draw. If ApoB is high, what changes? If ferritin is low, who evaluates why? If testosterone is low, who decides whether treatment is appropriate?
Agewell buying order
First: physician-ordered basics if you have symptoms, medication, risk factors or an existing doctor. Second: Function or Oura for a low-cost baseline if you are healthy and want a snapshot. Third: WHOOP Advanced Labs if you are already paying WHOOP and will retest after a defined intervention. Fourth: InsideTracker if the dashboard and upload model are the thing you actually want.
Who should skip
Usually most people, this year. Skip if you cannot name the question the panel answers, or the clinician who owns an abnormal result. A broad draw without a next step buys data and anxiety, not a decision.
FAQ
Is Function Health worth it at $365?
It can be, if you want a broad annual baseline and understand that abnormal results still need clinical follow-up. The price per marker is strong; the medical relationship is the missing piece.
Is Oura Health Panels better than WHOOP Advanced Labs?
Oura is cheaper for a one-off panel. WHOOP is deeper and more integrated for training-focused users, but costs more and its test-credit model needs calendar discipline.
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By David Persson · Updated 2026-06-12 · Corrections: hi@agewell.guide