Sleep
Duration and timing across the period you are reviewing.
Bring the rest of your data.
Sleep, recovery, activity and cycle records can sit beside your skin timeline. Stella keeps the context visible without claiming that coincidence proves cause.
You choose which supported data sources to connect.
Context belongs beside the scan.
Wearable data does not explain a skin change on its own. It gives you another record to compare with the same period.
Recovery
Selected recovery signals recorded by a connected platform.
Activity
Movement and training context beside scan dates.
Cycle
Cycle timing shown alongside recurring appearance patterns.
Supported platforms.
Open a platform guide to see what can be connected and how its data appears beside your record. Availability may vary by device and region.
Apple HealthSleep, activity, and cycle data from your Apple ecosystem.View connection guide →
Oura RingSleep quality, readiness, and recovery data from your Oura Ring.View connection guide →
WHOOPStrain, recovery, and sleep performance from your WHOOP band.View connection guide →
FitbitSleep, activity, and stress data from your Fitbit device.View connection guide →
Samsung HealthSleep, activity, and wellness data from your Samsung ecosystem.View connection guide →
Google Health ConnectSleep, activity, and health data from Android devices and connected apps.View connection guide →
SuuntoTraining load, recovery, and sleep data from your Suunto watch.View connection guide →
WithingsSleep, activity, and health metrics from your Withings devices.View connection guide →Keep context with the record.
Connect the sources you already use, then compare selected periods without relying on memory alone.
Start your first scan →Try Stella for free. No credit card required.Appearance-level observations, not therapeutic advice. Not a medical device.