Device research record
Samsung Galaxy Watch 4
Signals and sensors
From the device record. Fields the source does not state are left out.
- Maker
- Samsung
- Form factor
- Wrist
- Signals recorded
- PPG, Accelerometer, Gyroscope
- Also called
- Galaxy Watch 4
What published studies show
Results quoted from 2 published validation studies, each against a clinical reference. A result applies to the model and protocol tested, not to every model the brand sells. From the wearable accuracy database (v1.0.0).
Blood oxygen (SpO2)2 studies
| Device tested | Result | Reference | Sample | Study |
|---|---|---|---|---|
| Samsung Galaxy Watch4 | RMSD 1.8%Root-mean-square error | Arterial blood gas (SaO2) | n = 24, Hypoxia lab, SaO2 plateaus 70–100%, FDA/ISO procedure | Browne et al. (2025)Independent |
| Samsung Galaxy Watch4 | RMSE 2.54 points (overnight, vs PSG oximetry)Root-mean-square error | PSG pulse oximetry | n = 51, In-lab overnight PSG, continuous SpO2 | Browne et al. (2024)Maker funded |
- Samsung Galaxy Watch4RMSD 1.8%
Root-mean-square error · vs Arterial blood gas (SaO2) · n = 24, Hypoxia lab, SaO2 plateaus 70–100%, FDA/ISO procedure
Browne et al. (2025) Independent
- Samsung Galaxy Watch4RMSE 2.54 points (overnight, vs PSG oximetry)
Root-mean-square error · vs PSG pulse oximetry · n = 51, In-lab overnight PSG, continuous SpO2
Browne et al. (2024) Maker funded
Comparisons
Head-to-head pages that name Samsung Galaxy Watch 4 come first, then other comparisons for the brand.
Datasets recorded with this device
- DEO
Drinking / Eating / Other smartwatch IMU (Samsung GW4 relabel)
- IPqM-Fall
Galaxy Watch 4 + phone IMU fall/ADL/military
- WatchMyHeart
Apple Watch 7 + Galaxy Watch 4 resting ECG (n=93)
Leaderboards on its datasets
Benchmarks computed on data recorded with Samsung Galaxy Watch 4.