Published research
The studies behind the radar findings
These are the peer-reviewed studies behind the radar findings on How it works. They describe radar research in general; none of them measures StaySharp, and no figure here is a StaySharp performance claim.
Each study was checked against its publisher's page on 21 September 2026.
Finding
Movement
Radio-wave sensing tracked walking speed in people's own homes for up to a year in a 2022 Science Translational Medicine study, and a 2026 millimeter-wave study followed several people moving at once in a large room.
Where StaySharp standsMotion sensors in Premium and Deluxe cover room activity. Radar movement interpretation is a research direction.
Studies
- Monitoring gait at home with radio waves in Parkinson's disease: a marker of severity, progression, and medication responseScience Translational Medicine, 2022
- Millimeter-wave technology for multi-person fall detection validated through wearable sensors and real-life scenariosScientific Reports, 2026
Finding
Falls
A 2025 review of 80 fall-detection studies found that non-wearable sensors (the family radar belongs to) outperformed wearables, with deep learning giving the best results.
Where StaySharp standsOur own fall research is shown on How it works. Not in the current packages, and no StaySharp accuracy has been established.
Studies
Finding
Breathing and sleep patterns
A 60 GHz radar beside the bed told wake, REM and non-REM sleep apart with 85 percent agreement against polysomnography in 78 adults (Journal of Sleep Research, 2024).
Where StaySharp standsRadar sleep monitoring is planned for Deluxe.
Studies
Finding
Sleep apnea
Clinical studies comparing radar-based monitors with overnight polysomnography, one of them in 200 people, found they pick up the breathing pauses of obstructive sleep apnea.
Where StaySharp standsA research direction. StaySharp does not diagnose or treat sleep apnea; talk to a clinician about symptoms.
Studies
- Validation of a low-load monitoring system based on millimeter-wave radar and pulse oximetry vs. polysomnography for obstructive sleep apnea diagnosisSleep Health, 2025
- Event-level identification of sleep apnea using FMCW radarBioengineering, 2025
- Comparative accuracy of millimeter-wave radar and polysomnography in sleep apnea detectionMedical Science Monitor, 2025
What these studies do and do not support
They show that radar can sense these things in published research. They do not show StaySharp hardware doing it. StaySharp is a general wellness product: it does not diagnose, treat or prevent any disease, and fall detection is a research direction, not part of the current packages.