What is the accuracy of the watch heart rate Moniter?

My heart rate monitor Apple Watch occasionally reads too low was 30. When this happens and I manually check my pulse there is an important difference, which is that my pulse is 70.

My question is, is this a fault of my watch or is it like that?

Hello

Consumer Resports tested the heart rate sensor against their dedicated Recommendations cardiofrequence-meter and can't find 'no difference' between their reading:

However, Apple says that, even in ideal conditions, Apple Watch may not be able to record a reliable heart rate monitor each time reading for everyone.

For best performance of the heart rate sensor, make sure you wear your watch sufficiently snug on top of your wrist. The collar must be neither too tight nor too loose, allowing room for your skin to breathe:

For best performance during practices, Apple suggests you consider your clamping beforehand watch band and he loosen again thereafter.

The sensor is likely to give better results for workouts that involve rhythmic (for example running) rather than the irregular movements (for example boxing). During all the training that involve bending your wrists (such as weight training, for example), it can help to keep your watch a little higher on your arm, the joint in flexion.

Other problems that can affect the performance of the sensor include skin perfusion and tattoos wrist - see the link below for more details.

Apple says that, if you encounter inconsistent readings, you consider your watch to connect wirelessly to an external heart monitor (for example, a chest strap Bluetooth) during the training:

Your heart rate. What it means, and where on Apple Watch you will find. -Apple Support

Tags: Apple Watch

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