When you think of powerful phones, it's natural to imagine a phone with the pixel-pushing power to handle tasks like Daydream VR or some graphically intensive game. The Cat S41 has an entirely different type of power, however. The comparatively massive 5000 mAh battery can be used to charge phones with batteries that just can't handle the rugged use cases of the rugged users of rugged phones.
A thermal camera smartphone may not sound like the most useful thing to you in the world, but there's little doubt a niche market for such a thing probably exists, not to mention the undeniable cool factor. And by cool, I mean hot. As in heat. Temperature jokes. The CAT S60 (our announcement post here) features the same thermal imaging sensor found in FLIR's FLIR One dongles for Android and iOS devices, and that's a damn good system - we reviewed it.
By slapping it inside a smartphone, FLIR has eliminated one of the major complaints about the device.