As people strive ever harder to minutely quantify every action they do, the sensors that monitor those actions are growing lighter and less invasive. Two prototype sensors from crosstown rivals ...

From lightweight armbands to elite chest straps, these are the best heart rate monitors for tracking your pulse during workouts.

This sleek and compact cross trainer features eight levels of resistance, an LCD display measuring speed, time, distance, calories, your pulse, and a hand pulse sensor.

HMD Pulse in Blue (speculative renders) This new leak reveals that the phone will have a 13MP camera on its back (with trendy AI features) and a 5,000mAh battery inside.

Our top picks for the best heart rate monitors include chest straps, smartwatches, and budget options. Find accurate models from Garmin, Polar, Fitbit, and more.

Stanford University researchers have developed an arterial-pulse sensor to wirelessly monitor blood flow, an advance that could allow doctors to remotely monitor the success of blood vessel surgery.