Key facts
- Signals
- ppg, ecg
- Devices
- samsung-galaxy-watch-5, shimmer3-gsr-plus, shimmer-ecg
- Sampling Rates
- Galaxy Watch 5 wrist PPG 25 Hz; Shimmer finger PPG 404 Hz; Shimmer ECG reported as 400 or 404 Hz depending on release metadata
- Subjects
- 20
- License
- CC BY 4.0
Summary
ToLife provides simultaneous consumer-watch wrist PPG, contact finger PPG, and ECG. It is especially useful for learning timing/rate relationships and testing cross-site representations without assuming that fingertip contour or amplitude is preserved at the wrist.
Updated: Oct 5, 2026