For decades, the investigation of brain functionalities has been a point of care for neuroscientists. The accelerated progress of knowledge of the neural motor system and the significant advances in nano- and micro-technology have led to solid growth in implantable devices technology. Despite the promising prospects of these devices, most of these implants still face limitations due to the bulky implant, the wiring, the limited number of channels, and the invasiveness of the surgical procedure, which cause significant risks for the patient and may cause the failure of the implant. The next generation of implantable neural devices aims to build battery-free, miniaturized, and wirelessly powered implants to achieve a new approach for neural interfaces, thus developing innovative implantable neural prostheses to restore impaired or lost neurological functions.