My phone has been dropped through my occasions, the sensor and shutter work fine.
The CAT S60, also S61 are in direct competition to the C2 and C3 cameras. But the CAT is cheaper, brings higher rugged rating, better screen, battery, connectivity and a whole working phone with it. The S61 is a little more expensive, but I would still pick it over the C3, as you may get better software in the C3; but moelre software options on the CAT.
The rewired MyFlir app is probably the Flir ONE PRO app: it should in theory work on the S60 too.