AnswerIt really depends on what you are monitoring and the features you need to do that. Things to take into account:
- Need audio recorded?
- Do you need to be able to talk back?
- Distance to main target area?
- What level of recognition are you looking to get? Motion, face or plate at 3 feet or 200?
- Wide, average or narrow view angle?
- Is a wired ethernet possible there?
- Is power available there?
- Is night vision required and if so to what distance?
- How weather / theft proof is needed?
- Is zoom wanted? If so auto or manual?
- Is pan / tilt wanted, if so should it track objects automatically?
- Are you going to use a DVR? If so do you have one or are you looking?
- If thinking cloud recording do you have the upload bandwidth for the number of cams you want? What length of storage are you expecting?
- Do you want continuous recording (the answer to this one ought to be yes somewhere if only on the camera or DVR.)
This why the 40 I currently have online are a mixture of brands and models. See my compare sheet.
To find the best camera you need to first gather the answers to most of the above then ask that question again.