promise2167 E04 Smart ECG Bracelet 1.3-inch Color Screen ECG HRV Analysis 3D Dynamic Test Sports Watch

hey all your OS reviews about two months ago we did a review on a low-cost fitness tracker that has ECG functionality as a refresher ECG stands for electrocardiograph and it uses these electrodes which contacts your skin to not only record your heart rate but also your blood pressure and your stress level HRV which is done more accurately and it's a more kind of medical grade sensor compared to just optical which relies on only light to detect your heart rate so this was kind of a breakthrough because it was really low cost and previously ECG sensors were only found on larger equipment or really expensive brands but this is now coming to cheaper and more generic watches it seems like it's a trend now in 2019 because today we're taking a look at a SmartWatch version that also has ECG and PPG for more accurate heart rate and blood pressure but it's also very low cost sells for under 45 bu