Electrical

ECG

Electrocardiogram

Measures electrical activity of the heart to detect rhythm abnormalities

Uses electrodes to detect tiny electrical changes on the skin caused by the heart's electrical activity during each heartbeat.

Heart Rate

Beats per minute measured at rest or during activity

Most accurate HR measurement

bpmVitals

Heart Rate Variability

Variation in time between heartbeats (RMSSD)

Gold standard for HRV

msCardiovascular

Apple

Apple Watch Series 10

$399+

Samsung

Samsung Galaxy Watch 7

$299+

Electrical

Bioelectrical sensors including ECG, EDA/GSR for heart rhythm and stress