The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Previous page Next page 1 Multiple Ways to Record 2 ECG Reports 3 Easy To Use 4 Synchronization Do you have to use a Smartphone to operate the EKGraph? No, you don’t need a smartphone to use this device. It shows a one-line rhythm, heart rate and information. But if you want to email the reports to your cardiologist you need a smartphone or computer. Does the device require a wireless or internet connection to work? No, it doesn't require internet to work. You don't even have to have your phone with you. It will store up to 100 readings and you can download them to your phone (via bluetooth) or computer (via usb cord) whenever it's convenient. Take it anywhere! Is subscription required? NO! Zero Subscription required for total usage. No hidden costs like other brands! Can the EKGraph work with a pacemaker? We do NOT recommend using the EKGraph with pacemakers or ICD. However, you may use it under the supervision of your heart-care provider. Can the original 100 readings be deleted? Or do I need to buy another product? Our smartphone or PC app allows you to delete readings. However, if you do not delete them, the original readings will be rewritten over the oldest ones.