CAT's line of rugged smartphones returns to this year's Mobile World Congress event with a brand new feature, a built-in FLIR thermal camera. While FLIR's sensors have been available as attachments for some time now, this phone is the first time the module has been shrunk down enough to be included inside of a phone. The 4.7" phone features a 720p display, a Snapdragon 617, 3GB or RAM and 32GB of internal storage, which is expandable up to 128GB with a microSD slot. The 13MP shooter is thermal-enabled with a temperature spot meter as well. No release date announced yet, but it will retail for $599 when it becomes available.