This study presents a preliminary development of a robotic assistant system with its solutions for combining robotics and health-care devices. The mobile robotic system acts as the sensing equipment for monitoring the heart rate from the continuous electrocardiographic (ECG) waveforms in real-world testing. Routine ECG monitoring can aid clinic diagnoses in cardiac and non-cardiac diseases. In addition, with the aid by technical advancements in information and communication technology (ICT), the designed robot can provide the assistance in the remote symptom monitoring for end users susceptible to heart failure, and advance healthcare in terms of reducing physicians' visiting costs while maintaining the quality of care. To present the planned features of the designed robotic system with ECG monitoring and diagnosis assistance, consider an end user at home, where the experimental environment is deployed.