Apple Health / HealthKit
iPhone · Apple Watch Series
The world's largest passive health data collector — 1 billion+ users. Apple HealthKit aggregates step count, walking speed, cardiorespiratory fitness, stair climbing, HRV, and sleep data. Apple Watch Series provides FDA-cleared ECG and AFib detection. RehabOS pulls HealthKit data via SMART on FHIR / Apple Health FHIR export for home rehabilitation monitoring between clinic sessions.
Outputs
Step count · walking speed · VO₂ max · HRV · sleep · ECG · AFib · stair count · fall detection
Apple Health FHIR exportHealthKit API
Google Fit / Android Health
Android wearables · Pixel Watch
Google Health Connect provides a unified Android health data API — aggregating data from Samsung Galaxy Watch, Wear OS devices, Fitbit, and third-party apps. RehabOS uses the Health Connect FHIR export for home monitoring data from patients using Android devices — activity, sleep, HR, and stress data for remote rehabilitation programmes.
Outputs
Activity · step count · HR · sleep stages · stress · blood oxygen · menstrual health
Health Connect APIFHIR export
Fitbit (Google) · Garmin Connect
Sense · Versa · Venu series
Widely used consumer fitness wearables deployed in home rehabilitation programmes for patients without clinical wearables. Fitbit's clinical API (Fitbit Health Solutions) provides FHIR-compatible data export for healthcare applications. Used in cardiac, pulmonary, and post-surgical rehabilitation step-down monitoring.
Outputs
Step count · active minutes · HR zones · sleep · SpO₂ · HRV · ECG (select models)
Fitbit Web API → FHIRGarmin Health API
WHOOP
WHOOP 4.0 / 5.0
Continuous recovery and performance monitoring wearable — widely used in sports rehabilitation and high-performance athlete return-to-play programmes. WHOOP's recovery score, strain score, and HRV trend are increasingly used by sports medicine and rehabilitation teams to guide training load progression post-injury.
Outputs
Recovery score · HRV · RHR · sleep performance · strain · respiratory rate · skin temperature
WHOOP API → RESTBLECSV export
Omron Healthcare
Complete · HeartGuide · Evolv
Medical-grade wrist blood pressure monitors validated for clinical use — used in cardiac rehabilitation for home BP monitoring between supervised sessions. OMRON Connect health app integrates with Apple Health and Google Fit. RehabOS pulls OMRON data via HealthKit/Health Connect for cardiac rehabilitation remote monitoring.
Outputs
Systolic/diastolic BP · pulse · irregular heartbeat detection · trend chart · hypertension classification
OMRON Connect APIBLEHealthKit / Health Connect
Doro · AliveCor
KardiaMobile · KardiaBand
AliveCor KardiaMobile is the world's most clinically validated personal ECG device — FDA-cleared, used by cardiologists and cardiac rehabilitation teams for remote rhythm monitoring. KardiaMobile 6L captures a medical-grade 6-lead ECG in 30 seconds. RehabOS integrates KardiaMobile results for cardiac rehabilitation patients between supervised sessions.
Outputs
Single/6-lead ECG · AFib detection · bradycardia · tachycardia · normal sinus rhythm classification
AliveCor APIPDF reportHL7 FHIR