Your iPhone can track steps using a built-in accelerometer. You can track your steps in the Health app, where you can see a range of exercise metrics.

Cut through the noise. Learn which smartwatch metrics actually matter – and how to use them to level up your training without the overwhelm. In Part 1, we broke down how smartwatches gather data ...

For proper operation, drones usually use accelerometers to determine the direction of gravity. Scientists have now shown that drones can estimate the direction of gravity by combining visual detection ...