My Amazfit Helio Strap is a treasure trove of features. I can't believe this $99 fitness tracker beats the Apple Watch 11.

We barely notice them, but they're one of the most important features buried in the everyday smartphone experience. Accelerometers are devices that can measure acceleration (the rate of change in ...

Objective This systematic review assessed the completeness of accelerometer reporting in physical activity (PA) intervention studies and assessed factors related to accelerometer reporting. Design The ...

How do piezoelectric accelerometers — vibration sensors — work? The force caused by vibration or a change in motion (acceleration) causes the sensor's mass to “squeeze” contained piezoelectric ...

Division of Preventive Medicine, Department of Epidemiology, Brigham & Women's Hospital, Harvard Medical School, Harvard School of Public Health, Boston, Massachusetts USA Correspondence to Dr I-Min ...

The accelerometer is a built-in electronic component that measures tilt and motion. It is also capable of detecting rotation and motion gestures such as swinging or shaking. The most common use for it ...

An optomechanical accelerometer that uses light to measure acceleration. Credit: F Zhou/NIST An accelerometer that uses laser light instead of just mechanical strain can register changes as small as ...