The HEARTFELT Study

This trial is testing a smart wearable device (measuring ankle swelling) to help people with chronic heart failure better manage fluid buildup and reduce hospitalizations. **You may be eligible if...** - You are 22 or older with a diagnosis of chronic heart failure for at least 2 months - You have had leg swelling (edema) during at least one heart failure hospitalization in the past 4 years - You have been hospitalized or treated urgently for heart failure at least once in the past 6 months - You are on daily diuretic (water pill) medication - You have not consistently provided at-home monitoring data (like daily weights or blood pressure) in the past 180 days - You have insurance that covers the device cost (e.g., Medicare) **You may NOT be eligible if...** - You wear bandages on your legs daily, have had both feet amputated, or are a full-time wheelchair user or bed-bound - You do not have a fixed home address - You have received a recent heart transplant or have certain implanted devices that would interfere Talk to your doctor to see if this trial is right for you.