I think the Flir I have is the pro version.The FLIR One has a thermal resolution of 80 x 60 pixels, so lower than the Fluke PTi120, whilst the FLIR One Pro is equal at 160 x 120 pixels. Perhaps FLIR's image blending, using the visible image to increase the apparent sharpness of the thermal image, wins out. I did have the brief use of a very expensive 1024 x 786 pixels thermal imager, and saw something interesting fly overhead one evening, totally silently, and invisible to the naked eye. It was not a bird!!
Tell work that they really need to spend and get something better!!