Features dual LCD backlit screen with extra large digits to display your last reading beside your current reading for comparison; Manage/track 200 total readings for 2 users (100 per user); Easy-Wrap ComFit cuff fits arms 9" to 17" in circumference Includes irregular heartbeat symbol that signals number of irregular heartbeats (up to 3); Hypertension indicator alerts you if your systolic/diastolic measurements are out of normal range; TruRead technology takes 3 readings and calculates average Bluetooth connectivity with the free Omron connect app (on select iOS & Android devices) stores unlimited readings and users; Works with Amazon Alexa enabled devices using the Omron Health skill Omron is the recommended home blood pressure monitor brand by doctors and pharmacists for clinically accurate home monitoring, and the selling manufacturer of home blood pressure monitors for over 40 years Note: Blood pressure varies constantly due to many factors including stress, time of day, and how you wrap the cuff, may affect your blood pressure