Android Platform - Clinical Grade

CAVIA Sensor Reference

Complete reference of all 42+ digital phenotype sensors passively collected by CAVIA during active clinical studies.

42+Total Sensors
3Categories
AndroidPlatform
2 yrValidated at Soroka
Why Android? CAVIA is purpose-built for Android, which exposes a significantly richer sensor surface than iOS - including CPU workload, telephony signals, screen events, ambient noise, and fine-grained Bluetooth data. This is a deliberate architectural choice: deploying on a single, fully-accessible platform lets CAVIA collect deeper, more clinically relevant phenotypes rather than operating at the lowest common denominator of cross-platform APIs.
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Based on external peer-reviewed research only. The clinical applications listed below are derived from independent academic studies cited in our Clinical Evidence Report (50 papers analyzed, 2,100+ publications reviewed). These reflect the research community's findings and do not constitute clinical claims by TendersLab. CAVIA is a data collection and infrastructure platform — clinical interpretation is performed by qualified medical professionals.
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Physical / Location / Environment

14 sensors
SensorDescriptionClinical Application (external research*)
AccelerometerAcceleration, including the force of gravity (m/s²)Gait and tremor analysis; Parkinson's detection (>85% accuracy); fall risk; cardiovascular activity monitoring§2 Neurodegenerative — Parkinson's Disease Digital Biomarker Discovery (arXiv:1711.04078); Deep Learning for MS Diagnosis (IEEE JBHI, 2020)
BarometerAtmospheric air pressure (mbar/hPa)Environmental context for respiratory conditions; pressure-linked migraine and headache triggers§3 Cardiovascular — Passive Sensing for Mental Health Monitoring — Scoping Review (JMIR, 2025)
GravityForce of gravity as a 3D vector (m/s²)Posture and gait stability monitoring for fall risk and neurodegenerative disease progression§2 Neurodegenerative — Sensor-Derived Measures in MS via Smartphone Assessments (JMIR Formative, 2024)
GyroscopeRate of rotation of device (rad/s)Rotational tremor detection for Parkinson's and MS; head movement patterns for neurological assessment§2 Neurodegenerative — Parkinson's Disease Digital Biomarker Discovery (arXiv:1711.04078)
LightAmbient light (lux)Circadian rhythm and mood disorders (Stanford study); sleep quality biomarker; Type 2 diabetes risk stratification§1 Mental Health / §3 Cardiovascular — GluMarker: Glycemic Control Through Digital Biomarkers (arXiv:2404.12605); Inferring Mood with Smartphone Sensing (arXiv:2306.00723)
Linear AccelerometerAcceleration without gravity (m/s²)Pure motion analysis for gait cadence; Parkinson's and MS mobility assessment without gravity noise§2 Neurodegenerative — Parkinson's Disease Digital Biomarker Discovery (arXiv:1711.04078)
N S
MagnetometerGeomagnetic field strength (μT)Indoor orientation for location-based behavioral analysis; complements GPS in mobility biomarker computation§2 Neurodegenerative — Eigenbehaviour as an Indicator of Cognitive Abilities (arXiv:2110.09525)
ProximityProximity sensor distance (hardware-dependent)Phone-to-face interaction patterns; social behavior proxy for depression and loneliness research§1 Mental Health — Large-scale Digital Phenotyping Identifying Depression and Anxiety Indicators (arXiv:2409.16339)
RotationOrientation of the device in all axesFull orientation and balance tracking; gait assessment for fall prevention and neurological disorder monitoring§2 Neurodegenerative — Sensor-Derived Measures in MS via Smartphone Assessments (JMIR Formative, 2024)
Significant MotionSignificant motion detectionSedentary behavior detection; physical inactivity linked to cardiovascular and metabolic disease risk§3 Cardiovascular — Identifying Differences in Physical Activity Between Psychotic Patients and Controls (ResearchGate, 2020)
TemperatureAmbient air temperature (°C)Environmental stress and heat exposure monitoring; contextual health biomarker for chronic disease studies§4 Sleep & Behavioral — Context-Aware Digital Phenotyping of Youth Mental Health (medRxiv, 2025)
LocationsUser's estimated location by GPS/networkGPS mobility range and diversity - a primary biomarker for depression, anxiety, bipolar disorder, and schizophrenia relapse prediction§1 Mental Health / §2 Neurodegenerative — GPS Mobility and Depressive Symptoms: Systematic Review and Meta-Analysis (doi:10.2196/51875); Dynamic GPS and Mood Disorders (doi:10.2196/55635)
TimezoneTracks user's current timezoneCircadian rhythm disruption detection; sleep disorder and seasonal affective disorder (SAD) monitoring§4 Sleep & Behavioral — Continuous Sleep Depth Index Annotation with Deep Learning (arXiv:2407.04753)
OpenWeatherWeather data from OpenWeather APIWeather-behavior correlation for mood disorders, seasonal affective disorder, and respiratory condition triggers§1 Mental Health / §4 Sleep & Behavioral — Context-Aware Digital Phenotyping of Youth Mental Health (medRxiv, 2025)
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Device Usage

9 sensors
SensorDescriptionClinical Application (external research*)
ApplicationsApplication usage patternsApp usage as behavioral fingerprint for depression, anxiety, and ADHD; social app activity as mental health biomarker§1 Mental Health — Digital Phenotyping for Depression Detection (ResearchGate); Large-scale Digital Phenotyping for Depression and Anxiety (arXiv:2409.16339)
BatteryBattery and power eventsCharging routine as proxy for daily behavioral stability; bipolar and schizophrenia monitoring§1 Mental Health — Capturing the College Experience: 4-Year Mobile Sensing Study of Mental Health (doi:10.1145/3643501)
BluetoothBluetooth sensing and nearby devicesDevice proximity count as social exposure measure; key biomarker for social isolation and loneliness§1 Mental Health — Unmasking the Nuances of Loneliness Using Digital Biomarkers (arXiv:2404.01845)
CommunicationCommunication usage (calls/messages)Call and message frequency - primary social interaction biomarker for depression, schizophrenia relapse, and loneliness§1 Mental Health — Large-scale Digital Phenotyping for Depression and Anxiety (arXiv:2409.16339); Behavioral Indicators of Loneliness (arXiv:2512.00326)
NetworkNetwork usage and trafficNetwork switching as mobility indicator; behavioral consistency biomarker for cognitive and psychiatric disorders§2 Neurodegenerative — Eigenbehaviour as an Indicator of Cognitive Abilities (arXiv:2110.09525)
Processor WorkloadCPU workload for user/system/idle (%)Device engagement intensity as cognitive activity proxy; relevant for ADHD and early cognitive decline monitoring§2 Neurodegenerative — Deep Learning-Based Detection of Cognitive Impairment from Passive Smartphone Sensing (arXiv:2509.23158)
Screen UsageScreen events (on, off, locked, unlocked)Sleep architecture proxy via screen on/off events; depression and anxiety biomarker; atrial fibrillation risk signal§1 Mental Health / §3 Cardiovascular — Depression Severity Prediction via Smartphone Sensing (JMIR mHealth, 2024); Continuous Sleep Depth Index (arXiv:2407.04753)
TelephonyCell operator, current and neighbor towersCell tower-based location context for population-scale behavioral research and social environment mapping§2 Neurodegenerative — Eigenbehaviour as an Indicator of Cognitive Abilities (arXiv:2110.09525)
Wi-FiWi-Fi sensing and network proximityIndoor location and social environment context; lifestyle diversity biomarker for mental and metabolic health§1 Mental Health — Eigenbehaviour as an Indicator of Cognitive Abilities (arXiv:2110.09525)
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Plugin

15 sensors
SensorDescriptionClinical Application (external research*)
Real-time StreamingReal-time websocket stream (AWARE Micro)Enables real-time clinical monitoring and immediate intervention triggers in acute study protocolsCAVIA Platform — TendersLab Soroka Medical Center Deployment (2023-ongoing)
MQTT ServerRemote questionnaires, P2P context exchangeEcological Momentary Assessment (ESM) delivery for symptom sampling in mental health and chronic disease studies§1 Mental Health — Context-Aware Digital Phenotyping of Youth Mental Health (medRxiv, 2025)
AWARE StudyStudy and sync settingsMulti-center clinical trial coordination; study configuration and longitudinal data synchronizationCAVIA Platform — TendersLab Soroka Medical Center Deployment (2023-ongoing)
Advanced OptionsFor advanced users and developersCustom sensor pipeline configuration for specialized clinical research protocolsCAVIA Platform — TendersLab Soroka Medical Center Deployment (2023-ongoing)
Ambient NoiseDetects silent from noisy surroundingsAcoustic environment and conversation exposure monitoring; stress, anxiety, and social behavior research§1 Mental Health — Extracting Digital Biomarkers for Unobtrusive Stress State Screening (arXiv:2303.04484)
Google Activity RecognitionDetects physical activitiesValidated activity classification (walking, running, driving) for cardiovascular risk, diabetes prevention, and neurological mobility tracking§3 Cardiovascular — Identifying Differences in Physical Activity and Autonomic Function Between Psychotic Patients and Controls (ResearchGate, 2020)
SentimentalEnable/disable sentiment pluginContinuous emotional state monitoring plugin for depression and mood disorder longitudinal studies§1 Mental Health — Active Learning for Affective Digital Phenotyping (arXiv:2204.01915)
ESM SchedulerESM scheduling and activationActive symptom reporting to complement passive sensing; validated in depression and schizophrenia clinical trials§1 Mental Health — Capturing the College Experience: 4-Year Mobile Sensing Study of Mental Health (doi:10.1145/3643501)
FitbitFitbit integration (heart rate, steps, etc.)Heart rate, sleep stages, and step data; extends sensing to physiological biomarkers for cardiovascular and metabolic research§3 Cardiovascular / §4 Sleep — Passive Sensing for Mental Health Monitoring Using Machine Learning (JMIR, 2025)
SensorTagEnable SensorTag data collectionExternal environmental sensor integration for specialized clinical contexts beyond phone capabilitiesCAVIA Platform — TendersLab Soroka Medical Center Deployment (2023-ongoing)
Contacts ListAccess device contact list (anonymised)Social network size as loneliness and social isolation biomarker; social network dynamics in mental health research§1 Mental Health — Unmasking the Nuances of Loneliness Using Digital Biomarkers (arXiv:2404.01845)
Google AuthGoogle authenticationSecure participant authentication for multi-center clinical studies and IRB-compliant research protocolsCAVIA Platform — TendersLab Soroka Medical Center Deployment (2023-ongoing)
Google Fused LocationLocation via Google's fused location providerHigh-accuracy mobility data; primary input for depression and schizophrenia relapse prediction models§1 Mental Health — GPS Mobility and Depressive Symptoms: Systematic Review and Meta-Analysis (doi:10.2196/51875)
Device UsageLogs device usage and non-usage periodsDetailed usage logs for behavioral phenotyping; cognitive engagement and mental health biomarker§1 Mental Health — Enabling On-Device LLMs Personalization with Smartphone Sensing (arXiv:2407.04418)
ConversationsDetect and classify conversations using audioConversation frequency and duration as social isolation and depression biomarker; acoustic social behavior quantification§4 Sleep & Behavioral — Examining the Social Context of Alcohol Drinking with Smartphone Sensing (arXiv:2105.14371)

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2 years active at Soroka Medical Center. Sole Supplier status. Over 10TB of clinical phenotype data collected.

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