Recent advances in technology have made it possible to develop robots for preparing injectable anticancer drugs. This study aims to compare characteristics between robots available in the European market in 2022 and to help future pharmacy users in their choices. Three sources of data were used: (1) a review of published articles in the MEDLINE database from November 2017 to end of June 2021 on chemotherapy-compounding robots used in hospital; (2) all manufacturers' documentation, and (3) demonstrations of robot operations in real hospital conditions and discussions with users and manufacturers. Robot characteristics included number of robots installed, general technical characteristics, type of injectable chemotherapy produced and compatible materials, productivity data, preparation control methods, residual manual tasks, chemical and microbiological risk management, cleaning method, software, and implementation time. Seven robots commercialized were studied. Several technical characteristics have to be taken into account in selecting the robot whose match the specific needs of a particular hospital, and which often require rethinking the current production workflow as well as the organization of the pharmacy unit. In addition to increasing productivity, the robots improve the quality of production thanks to better traceability, reproducibility, and precision of sampling. They also improve user protection against chemical risk, musculoskeletal disorders, and needle wounds. Nevertheless, when robotization is being planned, there are still numerous residual manual tasks to keep in mind. Robotization of the production of injectable anticancer drugs is booming within anticancer chemotherapy preparation pharmacy units. Feedback from this experience needs to be further shared with the pharmacy community regarding this significant investment.