Figure 1From: Finger volume pulse waveforms facilitate reliable assessment of heart rate variability, but not blood pressure variability or baroreflex function Bland-Altman plots of time domain HRV parameters derived from EndoPAT and Finometer devices. Bland-Altman comparison between EndoPAT- and Finometer-derived heart rate time series shows a high agreement between the two devices for the measurement of SDNN and RMSSD.Back to article page