I have a Bushnell that takes great pics and is awesome on battery life. However I'm not so sure on the sensitivity of the motion detector. It adjusts by a wheel from 1 to 6 and there doesn't seem to be any difference in any setting. Heres the funny part I've installed security systems for most my life and couldn't tell yeah how many PIR motion detectors I've installed. The reason I say it is that I get lots of pics of deer sometimes, both far and close, and then nothing when I know dang well theres been deer in close view of it either by seeing them there personally or watching tracks in the snow and NO pics. In fact I just last sat had a doe come in within 8 yards of it and I shot it with my bow. Thought man I'll have some great pics maybe even of a kill shot. NOTHING! Well actually got pics of me going to pull my arrow out of the ground! lol
Now I will add that I have buddies that "brag" about their cameras different brand but they have all admitted to the same thing. They feed corn at theirs and go and the corn is gone tracks in the snow and no pics. But then a week later the card is full of pics.
I just last year bought this Bushnell as my first and only camera. So not alot of experience with them but actually kinda disappointed in it. I do KNOW I'd not trust my game cam to protect my life or propery!