I have several Wyze cameras on board, as well as a full set of Arlo cameras,
which I wrote about a while ago. Those serve as security cameras when I am away, and are far better suited for that purpose.
I have found that those type of cameras aren't as good for real-time monitoring for a number of reasons - connectivity to the internet that might be required, frame rates, features, etc.
Nest, Arlo, Wyze, and many other manufacturers are all in a fast competition for features and money, and while I still think Arlo is probably the best choice for wireless, battery powered security cameras, Wyze's new offerings are very compelling price wise.
For my real-time camera setup, I used the following:
1x
AXIS M7014 4 channel video encoder
3x
Stronghold MP cameras with 25' wire harnesses and 12V power supply conditioners
I tried about 8 other cheaper cameras before selecting these, and have been very pleased with the Stronghold image quality, size, adjustment capability, and ruggedness. They are in a stainless steel enclosure and I have seen no corrosion issues with the one mounted in the engine cowling on the port side of the boat, exposed to tons of spray.
Below are some screen shots of the cameras in action on Time Zero Pro on a PC, but they look almost identical on the TZ Touch 2