Stop Treating Everyone the Same: Smart Segmentation with Wearable Data

Written by:
Friedrich Lämmel
Segmentation in Healthcare

In 2025, healthcare practitioners still group people into categories that look neat on paper but fail in real life. Age brackets, diagnosis codes, risk scores, and demographic labels were designed for a world where data moved slowly, and patients were only visible at the doctor’s office. But today, two people with the same diagnosis, same medication, and same demographic profile can live entirely different physiological realities. For example, one sleeps well, recovers quickly, stays active, and manages stress, while the other struggles silently in ways no claims dataset will ever capture.

This gap between who people are on paper and how they behave in the real world is one of the biggest blind spots in modern medicine. But it wouldn’t be our blog post if there weren’t a smart solution, and that’s wearables! 

With them, it’s possible to review a person’s health trajectory long before clinical systems notice anything. Slowly but surely, segmentation is becoming less static and more dynamic, behavioral, predictive, and deeply personalized.

Previously, we tapped into the topic of target groups in healthcare. Today, we move on and explore why traditional segmentation fails, what wearable data uniquely adds, how to build actionable behavioral segments, and how health organizations can use this approach to deliver smarter, more precise, and more preventive care at scale. We’ll also show how Thryve’s infrastructure enables segmentation models that are both clinically meaningful and operationally scalable.

Why Traditional Segmentation Fails

Most healthcare segmentation models were built for billing, reporting, or actuarial forecasting, not for understanding how people actually live. As a result, they cluster patients into groups that look logical but behave unpredictably.

Traditional segmentation struggles due to:

Static, retrospective data: Claims, diagnostic codes, and annual check-ups reflect clinical events that have already occurred. They offer little insight into day-to-day patterns that influence future health trajectories. As a result, two individuals with identical clinical profiles may follow entirely different risk paths, something these models struggle to capture.

Lack of behavioral and lifestyle data: Sleep consistency, physical activity, recovery patterns, and stress responses meaningfully shape cardiometabolic, mental, and chronic disease risk, yet remain unmeasured in most frameworks.

Lack of sensitivity: Because the data is retrospective, the system reacts late. It flags problems only after symptoms appear, a diagnosis is made, or costs rise. Subtle declines in activity, worsening sleep, or rising resting heart rate go unnoticed.

Unpersonalized approach: Two people with the same disease may have completely different lifestyles, risk profiles, or engagement levels. Traditional segmentation puts them in the same category, losing important differences that could guide more targeted support.

Basically, traditional segmentation explains who a person was, but not how their health is evolving. Wearable-driven segmentation fills this gap by providing continuous, behavior-driven insight that aligns with modern preventive and personalized care.

How Wearable Data Improves Segmentation 

Wearable adds continuous, real-time insights into how people actually live, move, and recover. This transforms segmentation from a backward-looking into a forward-looking tool for prevention and personalized support.

Let’s go through some major changes: 

Real-time, continuous health signals

Wearables track activity, sleep, heart rate, HRV, and more throughout the day. This creates a dynamic picture of health rather than relying on one-time clinical measurements. Segmentation becomes proactive rather than reactive.

Early detection 

Changes in resting heart rate, sleep consistency, or activity patterns often signal rising health risks weeks or months before symptoms emerge. Segmentation based on these trends enables early, targeted interventions.

Chronic disease prevention 

Most long-term health outcomes are shaped by daily habits. Wearables capture real behavior, how people move, rest, and respond to stress, making segmentation far more meaningful and actionable.

Trend evaluation

Instead of categorizing people based on a single appointment or data point, wearable data supports trend-based segments such as improving, stable, or declining health. This offers more precise and timely insights.

Wearable data shifts segmentation from a static classification process to a dynamic, personalized, and prediction-driven model. This forms the foundation for smarter prevention, better resource allocation, and truly individualized care.

How the New Segmentation Model Works

As we already know, this shift allows insurers, providers, and digital health companies to deliver interventions that are more precise, more timely, and far more effective. But what does it really mean? Let’s deep dive into some aspects! 

Behavior-based segmentation

This category groups individuals based on daily patterns captured through wearables. Examples include sleep regularity profiles, movement consistency, or stress-related HRV patterns. By segmenting people according to how they live, organizations can tailor recommendations that align with actual routines. For instance, “irregular sleepers” may benefit from circadian-focused nudges, while “low-movement profiles” may need structured activity programs.

Physiology-based segmentation

Here, the focus is on stable physiological indicators such as resting heart rate, HRV baseline stability, or recovery patterns. These markers reflect the body’s internal state, not just daily behavior. This enables segmentation like “high stress load,” “reduced resilience,” or “elevated cardiovascular strain,” each unlocking targeted coaching or monitoring.

Risk trajectory segmentation

Instead of labeling someone as simply “high risk,” wearable data enables tracking whether their condition is improving, declining, or remaining stable. This helps organizations prioritize outreach, allocate resources efficiently, and introduce preventive interventions at the exact moment they are most effective.

Engagement and readiness segmentation

Focusing on user behavior toward the program itself, such as app usage, wearable adherence, or response to nudges, helps identify who is ready for deeper engagement and who may need simplified interventions or motivational support.

Across all categories, dynamic segmentation turns raw data into direction. It allows care teams and digital health systems to meet individuals where they are, anticipate their needs, and deliver support that is relevant, timely, and genuinely impactful.

What It Means for Healthcare Providers 

Dynamic segmentation powered by wearable data is not just a technical upgrade; it reshapes how every part of the healthcare ecosystem operates. For example: 

For Insurers

Segmentation enables insurers to move from broad preventive offerings to precision prevention. This allows: 

  • Targeted prevention programs: Instead of offering the same lifestyle modules to everyone, insurers can match interventions to detailed segments such as “high-stress profiles,” “irregular sleepers,” or “declining activity trajectories.”
  • Dynamic risk scoring: Continuous signals allow earlier identification of risk deterioration, supporting proactive outreach and reducing downstream costs.
  • Smarter premium models: Segments rooted in behavior and physiology enable more accurate underwriting frameworks, especially in supplemental products.

For Digital Therapeutics

Segmentation helps digital therapeutics deliver personalized experiences that adapt as the user evolves. It can be: 

  • Personalized intervention pathways: Users progress through different modules depending on their real-world data.
  • Adaptive nudges: Notifications can be timed and phrased for segments most receptive to behavior change.
  • Drop-off prediction: Engagement segmentation allows early identification of users likely to disengage, enabling timely reactivation strategies.

For Hospitals & Providers

Clinical segments improve patient management inside and outside the clinic, it can be seen in: 

  • Pre-op readiness: Activity, sleep, and stress patterns help classify surgical candidates into readiness tiers.
  • Remote monitoring stratification: Wearable data supports risk flags for worsening conditions in cardiology, pulmonology, oncology and more.
  • Chronic disease management: Segments reveal who is stabilizing, who is deteriorating, and who needs immediate intervention.

Overall, across all sectors, segmentation turns one-size-fits-all strategies into data-driven, personalized support systems.

How to Build a Smart Segmentation Pipeline

Now, we’re really giving out secret information here!

To be fair, building an effective segmentation framework requires more than grouping users by age or demographics. A modern segmentation pipeline integrates physiological signals, behavioral patterns, and real-time trends into a dynamic system that updates continuously. Below is a practical, step-by-step guide to designing such a pipeline.

1. Choose the biomarkers that truly matter

Start with a focused set of wearables-derived metrics that reflect core aspects of health and behavior. Common choices include:

  • Sleep patterns (duration, consistency, efficiency)
  • HRV (stress resilience, recovery)
  • Resting heart rate (baseline cardiovascular strain)
  • Daily activity / steps (movement patterns and variability)

These metrics provide a strong foundation for segmentation, as they correlate well with stress, metabolic health, readiness, and early deterioration.

2. Clean and smooth the data

Segmentation is only as good as the signal quality behind it. Apply smoothing, filtering, and artifact removal to eliminate noise from PPG, accelerometers, or motion-induced distortions.

Better signal quality = more stable and meaningful segments.

3. Define the clustering logic

Choose the method that fits your product architecture:

  • Rules-based segmentation (e.g., “low sleep + high RHR = fatigue segment”)
  • Machine-learning clustering (k-means, hierarchical clustering, Gaussian mixtures)
  • Risk-based scoring (declining trajectory → high-risk segment)

Each method can produce visual groupings, such as a 4-quadrant matrix (e.g., high HRV + high sleep → “resilient,” low HRV + low sleep → “overloaded”).

4. Map segments to interventions

A segment is only valuable if it triggers an action. Define what each group receives: targeted messages, coaching intensity, scheduling changes, clinical follow-ups, or behavioral nudges.

5. Continuously re-score segments in real time

Wearable data changes daily. Your segmentation engine should update classifications automatically as new data arrives, enabling dynamic personalization.

6. Validate segments against real outcomes

Finally, assess whether segments predict what matters: engagement levels, hospitalization risk, cost trends, therapy adherence, dropout likelihood, or employer wellness participation.

When done correctly, segmentation becomes a living system, one that actually adapts to users, anticipates needs, and unlocks scalable personalization across healthcare.

What Are The Main Challenges And Ethical Considerations

And now for the fun part. Building segmentation models from wearable data comes with several technical and ethical challenges:

  • Data Privacy: Wearable health data is highly sensitive. Segmentation workflows must ensure strong protections to avoid exposing individuals to unnecessary risk.
  • Bias & Representation: If certain populations are underrepresented in the dataset, segments may misclassify them, producing unfair or inaccurate recommendations.
  • Over-Segmentation: Creating too many micro-segments can dilute insights, increase complexity, and make interventions harder to implement.
  • Punitive Segmentation: In contexts like insurance, segments must never be used to penalize users (e.g., pricing or eligibility). Ethical segmentation focuses on guidance and support, not punishment.
  • Explainability: Users, clinicians, and regulators need clear reasoning behind each segment. Opaque models reduce trust and hinder clinical use.
  • Regulatory Compliance: GDPR, MDR, and the upcoming EU AI Act require transparency, fairness, and strict governance. Segmentation must meet these standards to ensure long-term viability.

These considerations underscore the importance of responsible design, robust data governance, and transparent methodologies in any segmentation strategy.

How Thryve Enables Smart Segmentation

Segmentation in healthcare must evolve beyond static demographic buckets and reflect how people actually live, behave, and change over time. Wearable data unlocks this shift, enabling a new generation of dynamic segments that support personalized interventions, early risk detection, and preventive care at scale.

When powered by high-quality signals and thoughtful design, segmentation becomes a strategic tool, not just for insurers and health platforms, but for every organization seeking better outcomes and engagement. At Thryve, we provide the data foundation needed to build accurate, dynamic, and ethically sound segmentation models. Our API offers: 

  • Seamless Device Integration: Easily connect over 500 other health monitoring devices to your platform, eliminating the need for multiple integrations.
  • Standardized Biometric Models: Automatically harmonize biometric data streams, including heart rate, sleep metrics, skin temperature, activity levels, and HRV, making the data actionable and consistent across devices.
  • GDPR-Compliant Infrastructure: Ensure full compliance with international privacy and security standards, including GDPR and HIPAA. All data is securely encrypted and managed according to the highest privacy requirements.

If you’re building a health app, prevention program, or digital therapeutic, now is the time to upgrade your segmentation strategy.

Book a demo to see how real-world wearable data can power smarter, more effective personalization.

Friedrich Lämmel

CEO of Thryve

Friedrich Lämmel is CEO of Thryve, the plug & play API to access and understand 24/7 health data from wearables and medical trackers. Prior to Thryve, he built eCommerce platforms with billions of turnover and worked and lived in several countries in Europe and beyond.

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