OMRON Evolv is our most portable upper arm monitor ever; Its compact, 1-piece design features simple, intuitive controls that make it easy to set up and use.With advanced accuracy, our exclusive heart health algorithm, this innovative, upper arm 1-piece blood pressure monitor measures more data points and eliminates interference from movement for more precise, clinically accurate readings.Works with the free OMRON app that allows for unlimited users/readings and sharing results with family or healthcare providers.OMRON, the #1 doctor and pharmacist-recommended brand of blood pressure monitors in the U.S., has a 50-year history of providing accurate, reliable products, and is the world's best selling blood pressure monitor brand.This product is FDA-registered as a medical device, has a five-year warranty, and is FSA/HSA-eligible. This monitor meets the Validated Device Listing (VDL) criteria for Clinical Accuracy as determined through an independent review process.