This is an interesting paper that will hopefully serve as an incentive for future research. It is based on a small convenience sample, but the statistics and methodology are sound.

The study has value because of the universality of blood pressure (BP) measurement, which helps alert doctors to a plethora of health conditions.

The authors developed their own system to collect photoplethysmogram (PPG) to estimate BP. Efforts were made to filter unwanted noise validation methods.

Results are shown via histograms and other diagrams. The authors are confident that their wristband technology will be a convenient and reliable system for medical personnel to measure this very important medical technique.

The authors include possible discussion points and the paper ends with a list of references.