Free pulse oximeter session viewer
Load one night from a Wellue O2 device, by CSV or straight off the device, and get the same charts and metrics as the full app. It runs in your browser. Nothing is uploaded and you do not need an account.
Drop a Wellue CSV export here
Everything here runs in your browser. Your recording is never uploaded, and nothing is kept when you close this tab.
Exports come from the Wellue ViHealth app: open a recording, then Share or Export as CSV. Bluetooth sync needs Chrome or Edge on a desktop or Android. Bluetooth setup guide
What you get
- Desaturation indices. ODI-3% and ODI-4% with a band, event counts and lengths, and burden per hour.
- Oxygen exposure. Mean and lowest SpO2, plus the share of the night below 90% and 88%.
- Heart rate. Mean, range, SDHR and cyclic variation of heart rate (CVHR).
- A chart. SpO2 and heart rate over the night, zoomable to a single event.
- A one-page report. Print it or save it as a PDF to take to a doctor.
These are the same calculations the full app runs, done in your browser instead of on a server. No recording yet? The sleep apnea risk check takes a minute.
Not a medical device. Does not diagnose, treat or prevent any condition. Discuss results and changes with a clinician.