Good choice
If you are looking for a camera that runs on solar power and a cellular signal, Vosker is a choice that I have been satisfied with. Battery stays charged no problem - though I haven’t tested it through the winter yet. Alerts arrive within a couple of minutes and pictures are sharp. Drawback for me is that detection is limited to a range of perhaps 15-20 yards. Also, the camera has to be turned on and off manually since there is no internet link. Otherwise, fully satisfied so far: I set it up about 6 months ago and it has performed well ever since.