Heartcare Suite is a comprehensive framework for understanding electrocardiogram (ECG) data.It includes Heartcare-220K dataset, Heartcare-Bench benchmark, and HeartcareGPT model with a customized tokenizer.HeartcareGPT compresses raw multi-lead ECG signals into semantically rich discrete tokens using advanced techniques.The project aims to advance ECG-specific multimodal understanding and evaluation, achieving strong performance in clinically meaningful tasks.