As the name suggests, the Pixel Watch 3 can detect the absence of a pulse while it's being worn on your wrist. It does this using the same optical sensors that are used to measure your heart rate.

The first is an attempt to make his own pulse sensor. The second is a miserable experience with a cheap Bluetooth Low Energy module.

The pulse oximeter can measure and display pulse rate simultaneously with the SpO 2 level. This is a non-invasive, real-time technique particularly in vital sign monitoring during an operation or ...

Pulse oximetry is a non-invasive means for measuring blood oxygen saturation and pulse rate, with typical sensors based on rigid electronics. Here, the authors develop a pulse oximeter based ...

Hammer Pulse smart watch: Specs and features As already mentioned, the Pulse smartwatch comes equipped with a temperature sensor that can measure the user's body temperature and keep them informed.