Screenshot of video taken by the Argus 2 at night, using "Fluent" (lower) quality. The 1080P setting produces better image quality but is slower through the wifi. The Argus2 has a magnetic base, so I set it here on a metal trellis to catch how a rat was getting in at night (hole now patched)...
I have a wireless Reolink Argus PT with solar panel. The video quality won't be as good as your phone, but it should start recording when it detects motion (you can also set a schedule and set sensitivity for motion), and you can look and manually record anytime. PT means pan-tilt, you can move...