Live Better

Bicep-worn, screenless, fitness tracking.

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Unseen - Screenless Health Tracking for Life

UNSEEN device front view
$150 $199 Save $49 (25%)

One-time purchase • No subscriptions • Lifetime ownership

Limited Early Access - Join the waitlist to be among the first to experience UNSEEN.

What's included:

Device, strap, app access, USB-A charging cable (no brick), lifetime app updates

Why UNSEEN?

No Subscriptions Buy once, own forever
Upper Arm Placement Free your wrist
Cardio Index Beyond step counting
Health Visibility Medical-grade sensors
Longevity Insights Biological age tracking
Science-Based Doctor-led design
Battery Life 10-day wear & forget
Privacy First On-device processing

Features & Specifications

Basketball player in action
Hybrid Tracking

Choose Your Way.
Your Data.

Automatic background tracking monitors sleep and daily activity 24/7 without any interaction. Press the button to activate focused tracking with higher resolution data and workout-specific analytics.

From seamless monitoring to detailed insights—you choose when to dive deeper.

Strength training with UNSEEN
Activity Index

Activity Tracking
Revolutionized

Backed by decades of medical research involving over 1 million participants worldwide. Those maintaining 100+ Activity Index have 73% lower risk of premature death and gain 13 healthy years of life.

Swimmer in pool showing waterproof capability
IP68 Waterproof

Never Miss a Beat.
Even Underwater.

IP68 waterproof up to 50m—works seamlessly in water and on land. Never worry about removing your device for any aquatic activity.

True 24/7 monitoring without limits.

Seamless integration everywhere

Standard BLE heart rate works with any app that accepts bluetooth heart rate monitorings - universal compatibility.

Google Fit
Google Fit
Apple Health
Apple Health
Strava
Strava
Zwift
Zwift
Peloton
Peloton
TrainingPeaks
TrainingPeaks
Nike Run Club
Nike Run Club
Adidas Running
Adidas Running
TrainerRoad
TrainerRoad
Peaceful sleep tracking with UNSEEN device
Sleep Intelligence

Master Your Sleep.
Transform Your Days.

Automatic sleep and nap tracking captures duration, stages, and delivers your overall sleep score. Trend analysis provides insights to keep you on track.

No manual triggers required—complete sleep intelligence without effort.

Man practicing yoga with health monitoring
Health Intelligence

Vital Signs to
Longevity Insights

FDA-approved sensors monitor your vital signs, then our algorithms estimate aging and create higher-order blended metrics to give you actionable health insights.

Biological Age
vs Chronological
Health Score
Blended Metrics
Longevity Index
Aging Estimation
Action Items
Personalized Insights
Trend Analysis
Health Trajectory
Risk Assessment
Early Detection

Frequently Asked Questions

Why upper arm placement instead of wrist?

Upper arm placement frees your wrist for watches and jewelry, provides superior accuracy for heart rate monitoring, and is completely hidden under clothing for a seamless experience.

What makes UNSEEN different from other health trackers?

UNSEEN offers no subscriptions, verified measurement accuracy, privacy-first design with on-device processing, and a wear-and-forget experience with 10-day battery life and magnetic charging.

What sensors does UNSEEN include?

UNSEEN features heart rate, motion, HRV (heart rate variability), and SpO2 (blood oxygen) sensors for comprehensive health monitoring with medical-grade accuracy.

One price, all features, forever

No subscriptions, no premium tiers, no hidden fees. Get everything UNSEEN offers for one simple price.

UNSEEN Health Tracker

$150

One-time purchase, lifetime of health insights

  • All health metrics included
  • iOS & Android apps
  • Apple Health & Google Fit sync
  • Lifetime software updates
  • 30-day money-back guarantee
Join Waitlist

Compare to competitors:

Whoop: $30/month = $360/year
Oura Ring: $299-549 + $6/month
Apple Watch: $249-799 + daily charging