N58 ECG+PPG Smartwatch Buying Link: FLASH: BIG 11.11 SALE $39.74 ON 11.11.18 ONLY!
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Tethering app:
WearHeart –

This is a full smartwatch version of the various ECG+PPG smart health/fitness bands we have reviewed on this channel. By combining the real time readings from the two forms of biometric measurements, the ECG electrical signal from the metal plates and the PPG optical readings from the green diodes, and using advanced internal algorithms, something called a PWTT (see the last part of the video for more on this) can be computed to calculate your blood pressure and your HRV (that’s Heart Rate Variability) with, again, the claimed high accuracy. By blending all this technology in a fashionable, IP67 waterproof full color smartwatch, the N58 has achieved a new milestone in smartwatches. This is a solidly built and easy to use device.

Today’s video shows an extensive review of the tethering app, WearHeart, including a feature update that enhances the report for Heart Rate Variability (HRV).

More ECG+PPG Wearables:

Want to understand how they are able to estimate Blood Pressure from comparing the ECG electrical signal to the PPG blood flow signal in simultaneous measurements? Then check out this video: “Introducing Richtek integrated ECG/PPG AFE solution for heart rate sensors”

Reference documents supporting this video:

Pulse Wave Transit Time and Its Relationship with Systolic Blood Pressure

Mobile cardiac health monitoring
Patent Application WO 2014042845 A1

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Important Notices for Blood Pressure Reading Devices –
BIOMETRIC MEASUREMENT WARNING: This device claims to read Blood Pressure without using a cuff to measure actual Blood Pressure directly. The accuracy of the readings HAVE NOT BEEN VERIFIED and MAY NOT BE ACCURATE. As such, you are advised to proceed with caution and to *NOT* rely upon Blood Pressure readings from this or any similar devices for making decisions regarding your medical condition or health. Fitness/Health watches/bands offering biometric measurements such as heart rate, Blood Pressure, blood oxygen, fatigue, breath rate, etc., should be considered supplemental to seeking true and accurate readings taken under optimal conditions by trained professionals using accurate, calibrated equipment. If you feel concerned about your health, do not self-diagnose, especially from using inexpensive, uncalibrated non-medical wearable devices such as this one. Seek proper medical advice. Enjoy your new toy, but remember, it is a toy.

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