Bests & Worsts Reviews from Amazon

** Edit - added FLIR One (1st Gen and Seek XR photos of same dog at about the same range) I owned a FLIR One for my iPhone 5s prior to buying the Seek Thermal XR for my iPhone 6+. With a new FLIR on the horizon (FLIR Two?)that could attach to any iPhone I was planning on buying that device but then Seek came out with the "XR" that had a much greater range than my FLIR One and the ability to focus on objects near or far. I do like my XR but I also miss my FLIR One. Pros of the Seek XR over FLIR One: Focus Higher resolution/thermal pixel count Much better App for iPhone (like MUCH better) Seems to be more accurate (skin is actually 98f!) Wider displayed temperature range Automatic calibration Pros of the FLIR over XR Second camera for visible spectrum Contrast of thermal seems to be better My FLIR would tell me <32f or >212f if I pointed at something colder or hotter than that. I have gotten 24f and 626f (thermite) off the XR so far. The 626f must be its peak displayed temperature as it hit that number within a few seconds of the thermite's ignition and it stayed there for a few seconds after it went out. The XR is purely a thermal camera so unless there is pretty good contrast in temperature you will feel like you are looking at a sea of gravy. The FLIR provides a visible spectrum camera as well so it provides additional details in the image/video like outlines, facial features etc. Focusing the XR takes some practice as the area you are focusing against isn't clear to begin with. After focusing on several dozen objects you do get a sense of where it should be and then can just tweak it a bit while looking at the image. You can actually get really good detail for a thermal image by doing this. Seek's Facebook page has several people who have sent images in demo'ing this. The image itself seems much more zoomed over the FLIR One which is both good and bad. I have had to take a few (several) steps back from something I wanted to image since I couldn't get the entire "something" in the screen without doing so. For outdoor longer distance uses though the zoom level seems more appropriate - I just wish I could control the zoom level on the XR. I believe it is the same as having an image zoomed in to 200% - all the time. Its an optical zoom so you aren't losing resolution though. I did have an issue with my XR - there was a defect that showed a small rectangular area in the upper right corner as being several degrees cooler than the surrounding image. I don't know if it was a sensor problem or something on the inside of the lense. In any case the Seek guys offered an exchange and a pre-paid FEDEX label to send it back. The one complaint I have is that I had to let go of my XR - have them receive and process the return prior to them sending me a new one. Not a huge deal but I'm currently without my XR and I'm missing it! Update: 3 days after they received the device I got a FEDEX notification that another was on the way. Ill update again when it arrives.