Refer to https://support.zoom.us/hc/en-us/articles/201362603-Host-and-Co-Host-Controls-in-a-Meeting

The co-host feature allows the host to share hosting privileges with another user, allowing the co-host to manage the administrative side of the meeting, such as managing participants or starting/stopping the recording. The host must assign a co-host. There is no limitation on the number of co-hosts you can have in a meeting or webinar.

Co-hosts do not have access to the following controls as they are only available as host controls in a meeting:

• Start closed captioning and assign someone or a third-party to provide closed captioning
• Start live streaming
• End meeting for all participants
• Make another participant a co-host
• Start waiting room (co-hosts can place participants in waiting room or admit/remove participants from the waiting room)

Co-hosts also cannot start a meeting. If a host needs someone else to be able to start the meeting, they can assign an alternative host.

Click here for the comparison in details.