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  2. Pulse watch - Wikipedia

    en.wikipedia.org/wiki/Pulse_Watch

    Accelerometer — an accelerometer can measure any motion that is used in combination with the other mentioned components, providing motion and location sensing heart rate data via an algorithm 4. Algorithms — an algorithm is formed from the processor and the accelerometer into biometric data .

  3. Heart rate monitor - Wikipedia

    en.wikipedia.org/wiki/Heart_rate_monitor

    More recent devices use optics to measure heart rate by shining light from an LED through the skin and measuring how it scatters off blood vessels. In addition to measuring the heart rate, some devices using this technology are able to measure blood oxygen saturation (SpO 2). Some recent optical sensors can also transmit data as mentioned above.

  4. Accelerometer - Wikipedia

    en.wikipedia.org/wiki/Accelerometer

    An accelerometer measures proper acceleration, which is the acceleration it experiences relative to freefall and is the acceleration felt by people and objects. [2] Put another way, at any point in spacetime the equivalence principle guarantees the existence of a local inertial frame, and an accelerometer measures the acceleration relative to that frame. [4]

  5. How accurate is your commercial fitness tracker? - AOL

    www.aol.com/accurate-commercial-fitness-tracker...

    In a 2019 study, 18 senior citizens took a stroll on some treadmills while armed to the hilt with fitness trackers. Commercial fitness trackers are being used for all kinds of things other than ...

  6. Fitness tracker - Wikipedia

    en.wikipedia.org/wiki/Fitness_tracker

    The Fitbit Charge 3 activity tracker. A fitness tracker or activity tracker is an electronic device or app that measures and collects data about an individual's movements and physical responses, towards the goal of monitoring and improving their health, fitness, or psychological wellness over time.

  7. Every Hour-Long Walk Could Add 6 Hours to Your Life ... - AOL

    www.aol.com/lifestyle/every-hour-long-walk-could...

    Participants wore an accelerometer on their hip for a minimum of 10 hours per day for at least 4 days. An accelerometer is basically a fancy pedometer that tracks most kinds of movement, not just ...

  8. List of measuring instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_measuring_instruments

    Blood-related parameters are listed in a blood test. Electrocardiograph records the electrical activity of the heart; Glucose meter for obtaining the status of blood sugar. Sphygmomanometer, a blood pressure meter used to determine blood pressure in medicine. See also Category:Blood tests

  9. Smart ring - Wikipedia

    en.wikipedia.org/wiki/Smart_ring

    The smart ring form factor contains enough space to contain the same components as smartwatches. However, due to size constraints, smaller components are typically used in current smart ring products in the market, such as smaller and less accurate accelerometers, and smaller batteries leading to lower battery life than smartwatches. [11]