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I found it as accurate as the optical heart rate sensors, but it takes slightly longer to get a measurement.
It is capable of tracking steps, recording them through the day and giving a basic history of steps through the week, as well as heart rate for those watches equipped with heart rate sensors.
Wristbands that measure your skin conductivity, chest straps that measure your heart rate, sensors that measure the pressure you place on your keypad and mouse, all working to devise an "automatic interruptibility measure"—a metric of how busy (or not) you are from moment to moment and how available you are for conversation.
None of the wearables tested included heart rate sensors.
They're a tad larger than normal earbuds, but normal earbuds do not have heart rate sensors built-in, either.
This study investigated the application of rotation rate sensors to measure flexural vibrations of beams.
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There is an optical heart rate sensor beside the camera on the back.
A heart rate sensor on the back combines with movement tracking for fitness monitoring.
The Gear Live also has a heart rate sensor built into the back for fitness tracking and is waterproof.
Maybe the phone has a temperature sensor, or a heart rate sensor, we could guess whether the user is tense... .. said Sung, talking to TechRadar.
The smartwatch has a built-in heart rate sensor, but instead of being an optical sensor it uses a capacitive one.
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