I have a Blink camera covering my front door, and I find it more than adequate for my needs. The Energizer Lithium AA batteries lasted just around a year and a half before I had to replace them.
But the drawback to the Blink, which isn't a drawback to me but may be to others, is that it doesn't record 24/7 so you can go back and review the footage if you want to find out if something happened.
The Blink must be triggered by motion, and only records in 30 or 60 second increments. And the sensitivity of the trigger must be balanced between getting good video of someone on your porch, and not triggering every time a leaf gets blown on the lawn.
The OP I think wanted the kind of security camera system where he can see multiple cameras simultaneously, which ain't the Blink system.
I have collected security camera or years. I do not want to tell you how many X10 cameras and accessories that we spent hundreds of dollars on. But it was a bit of an obsession for a while. We had them hooked to VCRs from the Goodwill with motion controllers. We had a problem with contractors stealing our stuff. We caught them on tape, so they did actually pay for themselves.
I did not mention the Blink in my first post because of the limitation you mentioned, although the local storage issue has been partially solved with the “Blink Add-On Sync Module 2”. I only mentioned it because it basically eliminates basically all wiring requirements. But I believe you still need a paid subscription if you didn’t start an account years ago.
https://www.amazon.com/gp/product/B084RQ6MHJ
“Supports local video storage for up to 10 Outdoor, Indoor, Video Doorbell and Mini devices. Record and store motion clips when you insert a USB flash drive (up to 256 GB – sold separately) into the Blink Sync Module 2.”
But it still does not support live view recording just clips.
Sorry for the typos and I should have said also that you were correct in your explanation. But I have to say that trying to review hours of video that was not captured with motion detection can be extremely tedious.
One time someone broke into our car which was in view of the ring on our front door, but we had a better view from a couple of our Wyze Cams. Even though I knew the exact time that the incident happened from the Ring camera it was still a pain to find the video on the Wyze Cams. And of course, when I gave the police the video that I edited from 3 different cameras... they had basically zero interest anyway.