Recently purchased the Sonohealth portable EKG monitor and am very happy. Pros No monthly fee required I can take readings directly on my chest as my hands don’t seem to have a good signal. The competitor’s product won’t allow me to do that. Don’t need my phone to take readings. Device will store multiple readings to be downloaded later. USB rechargeable. Competitor’s device requires battery change. Simple to use and reliable. Provides instant feedback of possible problem conditions. App is simple to use and allows you to email results to your doctor. Cons No obvious way to erase downloaded EKGs from my iPad although device memory can be cleared of stored EKGs. Overall, very happy with this product.