MUSCLE AWARE
RECOVERY.

Unified recovery intelligence for elite performance.
Enable data-driven recovery and load management strategies.

Explore FI-Tile Apply for Early Access Pilot
THE PERFORMANCE DEFICIT

The high cost of incomplete data.

33-42%

Period-prevalence of overuse injuries in team and individual sports 1

30-50%

Soft-tissue related injuries 1

High overuse prevalence reflects a deeper issue:
  • Recovery status is inferred, not measured locally
  • Systemic markers do not reflect muscle-level fatigue
  • Return-to-training decisions rely on indirect indicators
1 Franco M.F. et al., 2021. "Prevalence of overuse injuries in athletes from individual and team sports: A systematic review with meta-analysis." PMCID: PMC8536850.

Recovery happens in muscle tissue. Yet we rarely measure it directly.

WHY MUSCLE OXYGEN?

Beyond Heart Rate & HRV: SmO2 unlocks true recovery.

Local vs Systemic
Heart Rate and HRV only show the body's overall response. SmO2 reveals what happens inside the muscle itself.
Real-Time Fatigue
Track muscle oxygenation live to spot fatigue before it limits performance or disrupts training consistency.
Personalized Recovery
SmO2 data helps tailor rest and training to your unique physiology, not just averages.
LOAD
VITALS
MUSCLE
RECOVERY
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Technology

Swiss Flag Swiss Engineered. Designed for elite performance environments.

The FI-Tile integrates cutting-edge NIRS and PPG sensors into a compact, field-ready wearable.

NIRS: Localized SmO2
Multi-wavelength NIRS tracks real-time muscle oxygenation, providing direct insight into muscle-specific fatigue and recovery dynamics.
PPG: Systemic Bio-Markers
Integrated Photoplethysmography (PPG) tracks systemic physiological state, including heart rate and variability. Combined with SmO2, this enables contextualized recovery interpretation across both local and global signals.
Ultra-Compact Form Factor
Ultra-compact and lightweight (< 20g), engineered for seamless integration into high-intensity training and competition settings.
FI-Tile Product 2

Recovery Intelligence Platform

Compact Wearable Form
38 x 18 x 10 mm3
Lightweight FI-Tile engineered for seamless integration into elite training environments.
Multimodal Physiological Fusion
SmO2 + Vitals + Motion
Unified muscle oxygenation, cardiovascular dynamics, and mechanical load to quantify internal training stress with greater precision.
Staged Edge AI
On-device -> Session -> Longitudinal
  • On-device signal conditioning
  • Session-level feature extraction
  • Athlete-specific recovery baselining
This architecture reduces noise at the source and scales insight over time.
Recovery Modeling
From signals to actionable insights
  • Muscle-specific metabolic modeling
  • Internal vs. mechanical load reconciliation
  • API-ready structured datasets for sports labs/performance teams
Built for integration into elite training workflows and dashboards.
Time-Synchronized Architecture
Multi-device, time aligned
50 Hz wireless streaming + high-speed local logging (7h)
Enables clean longitudinal datasets for fatigue and adaptation modeling.
Field-Ready Build
IP67 • USB-C
IP67 lightweight housing, USB-C charging, built for elite performance settings.
Harshal Sonar profile photo

Founder & Lead

Harshal Sonar, PhD

Wearables • Human-Machine Interfaces • Soft-Robotics

Harshal Sonar holds a PhD in Robotics & Intelligent Systems (RRL, EPFL) and has a decade of experience leading wearable product development from research to deployment. Previously Head of R&D at BEARMIND (EPFL spin-off), he has filed key patents in wearable sensing. His focus is to convert laboratory muscle physiology into reliable, field-ready recovery intelligence for high-stakes performance environments.

FI-Tile Product

Deploying Pilot Cohort 2026.

We are deploying a limited cohort pilot across select sports science laboratories and elite performance organizations in Switzerland.

Cohort objectives:

  • Validate muscle-aware recovery models
  • Refine integration into training workflows
  • Establish longitudinal recovery datasets
Apply for Early Access Pilot
Own Your Redline.