As your comments, Korea's smart city has technological and normative advances compared to other countries. However, we think that the USA and China are more developed in service than Korea`s (Smart city trends: A focus on 5 countries and 15 companies, Cities, 2022). Therefore, this paper intends to cover only general smart city technologies worldwide (Smart city trends: A focus on 5 countries and 15 companies, Cities 2022). We fully agree with the reviewer's comments that they may feel uncomfortable in other countries. After that, we will do more research and expand the case to other countries. Thank you very much for your comments.
It is well-known that different services are hard to integrate together (this is not specific to the smart city), but I would have liked the authors to illustrate in light of the pandemic context, and maybe to the context of Korea since their contribution is specific to this geographic context in that it integrates the 12 smart city categories of Korea and the healthcare phases of Korea.