More: Whoop 5.0 Detailed Review
Steven Lomeli has brought a new class action lawsuit against WHOOP. He alleges that WHOOP unlawfully shared sensitive user data.
More specifically, his complaint asserts that WHOOP used its devices and app to collect extensive physiological data (heart rate, sleep patterns, stress levels, and even reproductive health information…he’s a man?). Furthermore, he claims WHOOP disclosed this personal health data to a third-party tracker called “Segment”.
Unbeknownst to consumers (and contrary to WHOOP’s representations), however, WHOOP embedded a third-party tracker called Segment into its mobile app that allows Segment to collect consumer data from the WHOOP app [Lomeili claims this]
The lawsuit seeks damages under the Video Privacy Protection Act (Federal) and the California Medical Information Act (State). The technical arguments are that WHOOP acted as a videotape service provider and a healthcare provider, violating privacy by sharing medical and video consumption information.
Q: Who is SEGMENT?
A: The company, referred to as ‘Segment,’ appears to be segment.com, which was acquired by Twilio for $3.2B in 2020.
What needs to happen is that the complaint needs to demonstrate:
- data was shared
- what data was shared, and
- sharing occurred without consent
Other Cases
I only know of one other class action against Whoop, which was filed in October 2023 by Sanderson, claiming that Whoop violated California’s Automatic Renewal Law. This case was granted class certification in March 2025, meaning we shall hear more about that soon.
Clarifications
I’m not a lawyer and only have the public information filed.
Thoughts?
This seems odd.
Whoop is a well-organised company and will undoubtedly be aware of its responsibilities. I doubt it will have deliberately avoided them, although mistakes can happen.
I find it especially odd, as Whoop uses clear mechanisms to share your data and requires your explicit approval. In the case of Apple iOS, the mechanisms are effectively policed by Apple, as shown in the screenshots below. So, I’m unsure if the claimant is alleging that data was shared by a Whoop employee or from the Android platform, the web platform, or erroneously from its iOS platform.
I suspect that the alleged sharing of his “reproductive health information” amounts to very little!
However, he claims that Whoop has deliberately embedded the ‘SEGMENT’ tracker into the Whoop app to collect and share data. If true, which I doubt, Whoop would be in deep water.
Opinion
This sounds like someone speculatively trying to get an out-of-court settlement.
Sources
- Video Privacy Protection Act
- California Medical Information Act
- Lomelli vs Whoop – Case 3:25-cv-06828-KAW
- Sanderson vs Whoop – No. 3:2023cv05477 – Document 62 (N.D. Cal. 2025)
- California Automatic Renewal Law
Last Updated on 3 October 2026 by tfk the5krunner
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. ID
Segment is literally the company name…what do you mean “it could well be Strava?”
It’s not. Segment is Segment. Segment isn’t Strava or Apple or Google. It’s Segment. https://segment.com/
It’s just a marketing, analytics and customer data platform that almost every company uses these days. The customer health data collected via Segment never leaves Whoop’s walls. It’s not sold. It’s not shared with 3rd party entities.
ah ty, the one owned by Twilio, right?