Review on Impressive IPROVEN BPM-417 - Digital Wrist Blood Pressure Monitor For Home Use - Large Cuff And Heart Rate Monitor - Real-Time BP Reading With Wrist Guide, Movement Sensor, And Backlight by Justin Wallace

Stores previous readings, and it can be used on either wrist without having to manually enable a switch for left or right wrist. Easy to setup. I can see where some have errors with their readings. Make sure you elevate the device or better yet the wrist you use above your heart. You will get a bad reading if you move or have the device or wrist resting on a table or down by your waist or hip, which are below the heart. Elevate the device or the wrist, by placing your elbow on a table or the arm of a chair, and place the device or the wrist over your heart, as if your were to pledge allegiance.