Our Take
The FDA didn't bless the feature; Whoop just stopped claiming it does what the agency says only medical devices can do.
Why it matters
Wearable makers operate in a regulatory gray zone between consumer wellness and clinical diagnostics. This case shows where the line actually sits and what happens when a company crosses it.
Do this week
Health tech product leads: audit your feature marketing language against FDA guidance on medical device claims before launch to avoid a warning letter cycle.
Whoop modified its blood pressure tool to satisfy FDA
Whoop received an FDA warning letter over its blood pressure insights feature, which the agency said was positioned as a medical device without appropriate clearance or approval. The company has since made changes to the feature that brought it into compliance with FDA requirements for wellness devices. The warning letter has been dropped as a result.
The source does not specify what changes Whoop made to the feature or the timeline of the warning letter. Healthcare Dive reported the resolution but full details remain unavailable.
The blurry line between wellness and medical claims
Wearables like Whoop sit in contested regulatory territory. A feature that measures or displays data can be just a wellness metric, or it can be a medical device prediction, depending on how a company frames it to users and what clinical claims it makes.
When Whoop's blood pressure feature crossed into medical territory (suggesting it could diagnose or predict conditions), the FDA stepped in. The company's fix was to dial back the clinical language or the scope of what the feature claims to do. This is a common resolution: not that the underlying measurement is wrong, but that the marketing and positioning must match the regulatory category of the product.
For other health-tracking companies, this case sets a precedent. Features are safer when they report data ("your blood pressure reading is X") than when they interpret it ("you may be at risk for hypertension"). The latter requires medical device designation or FDA clearance.
Health tech teams: know where your feature lives
Before launch, classify every health-related feature as wellness or medical. Wellness features report data. Medical features predict, diagnose, or treat. If you are claiming the latter, you need FDA approval. If you slip into medical claims without the clearance, you invite a warning letter and the cost of a product redesign.
Whoop's situation was not a hardware or algorithm failure. It was a messaging and positioning problem. Audit your in-app copy, marketing claims, and user-facing insights now, before regulators do it for you.