Physiological Signals, Activity and Posture for Surface Mounted Insertable Cardiac Monitor in Heart Failure Study

Inclusion Criteria: * Patients with NYHA class II or III heart failure defined by symptoms and signs of heart failure * Documented episode of decompensated heart failure in the past 3 years, which either: a) resulted in a hospital admission (primary diagnosis) or b) was treated in out-patient clinic * HFrEF defined by documented evidence of EF ≤ 40% OR * HFpEF defined by documented evidence of: * EF ≥ 50% and no prior record of EF \< 40% * Evidence of relevant structural heart disease or diastolic dysfunction on echocardiographic as defined in the 2016 ESC guidelines * Able to understand and willing to provide written informed consent to participate in the trial * Age 21 years old or greater * Willing and able to participate in the required testing Exclusion Criteria: * Prior hospitalization, CV event or surgery within 6 weeks * Subject is currently enrolled in another clinical trial (excluding registries) that may interfere with the placement of the study system or include the usage of investigational drugs. * Patients with Active Implantable Medical Devices * Known allergy to materials used in the study (adhesive tape, titanium, ECG electrodes) * Have a prosthetic cardiac valve, previously underwent cardiac valve surgery or have hemodynamically unstable (as judged by local investigator) valvular disease * Subject is pregnant as indicated by patient record * Patients with rash or open wound on torso locations where investigational devices will be placed * Patient deemed as clinically unstable or unsuitable to perform prescribed testing as judged by the local investigator