Wearables

Loop Health integrates with multiple wearable devices and continuous glucose monitors to provide a complete picture of a patient’s daily health metrics. Wearable data contributes 40% of the composite health score.

Supported Devices

Device	Type	Metrics	OAuth
Oura Ring	Smart ring	Sleep, readiness, activity, HRV	OAuth 2.0
Whoop	Fitness band	Recovery, strain, sleep, HRV, workouts	OAuth 2.0
Dexcom CGM	Glucose monitor	Continuous glucose readings	OAuth 2.0
Libre CGM	Glucose monitor	Continuous glucose readings	OAuth 2.0

Future support is planned for Garmin, Fitbit, and Apple Health.

Architecture


┌──────────────┐     ┌──────────────┐     ┌──────────────┐
│  Oura API    │     │  Whoop API   │     │  Dexcom API  │
└──────┬───────┘     └──────┬───────┘     └──────┬───────┘
       │                    │                    │
       ▼                    ▼                    ▼
┌──────────────────────────────────────────────────────────┐
│                  OAuth Token Storage                      │
│               patient_graph.wearable_data                 │
└──────────────────────────┬───────────────────────────────┘
                           │
                           ▼
┌──────────────────────────────────────────────────────────┐
│                  Trigger.dev Sync Jobs                     │
│  syncWearablesDaily · syncWhoopData · syncCgmReadings     │
└──────────────────────────┬───────────────────────────────┘
                           │
                           ▼
┌──────────────────────────────────────────────────────────┐
│              patient_graph.wearable_data                   │
│  patient_wearable_readings · patient_wearable_daily_stats │
└──────────────────────────┬───────────────────────────────┘
                           │
              ┌────────────┼────────────┐
              ▼            ▼            ▼
        Health Score   Luna AI    Dashboard
         (40% weight)  Insights   Visualizations

Data Flow

Connect — User initiates OAuth flow from the consumer app
Authorize — User authorizes Loop Health on the device provider’s site
Callback — OAuth tokens received and stored in the Patient Graph
Sync — Trigger.dev jobs run daily (3 AM UTC) to fetch latest data
Store — Metrics stored in wearable_data table with device source and type
Aggregate — Daily stats computed and stored in patient_wearable_daily_stats
Score — @loop/health-score incorporates wearable data (40% weight)
Insights — Luna AI accesses data via getWearableInsights tool

Metrics Collected

Metric Type	Devices	Description
`sleep`	Oura, Whoop	Duration, efficiency, stages, latency
`recovery`	Oura, Whoop	Recovery score, readiness
`hrv`	Oura, Whoop	Heart rate variability (ms)
`activity`	Oura, Whoop	Active calories, steps, activity score
`strain`	Whoop	Daily strain (0–21 scale)
`glucose`	Dexcom, Libre	Continuous glucose (mg/dL)
`readiness`	Oura	Readiness score (0–100)

Database Schema

`wearable_data`

Stores raw wearable metrics with source attribution:

Column	Type	Description
`id`	uuid	Record ID
`customerId`	uuid	Patient ID
`source`	enum	Device source (oura, whoop, dexcom, etc.)
`metricType`	enum	Metric type (sleep, recovery, hrv, etc.)
`metrics`	jsonb	Device-specific metric values
`recordedAt`	timestamp	When the data was recorded

`patient_wearable_daily_stats`

Aggregated daily statistics for dashboard display and trend analysis.

`patient_wearable_readings`

Individual readings (primarily used for CGM data points).