This review aims to cover both implantable and non-implantable devices available for monitoring various hemodynamic parameters and clinical features of patients, as well as algorithms implemented in the new generation ICDs and CRTs capable of simultaneous acquisition and transmission of multiple parameters that indirectly evaluate clinical and/or hemodynamic status. Both internet and PubMed searches were used in order to acquire the most recent developments in the technology of the field. Expert commentary: As new technology offers an enormous data flow, the key for success in the battle against heart failure and related hospitalizations is understanding the correct way of utilizing the data acquired and their importance for the treatment of each individual person.