This phone NOW, has the latest Flir/Teledyne Lepton 3.5 module. So it is true radiometric measuring, 160X120 which is the best in ANY cellphone made. It's even good enough for Level II thermography, (if you can get the client to believe that).
It is only available with Android 10 (has no Contact Groups), and will go to 11 by end of production (per factory rep.)
The S62 which I have (not Pro), would have to give up it's wireless and caddy-pin charging, hi-def main camera, fingerprint security, and about half it's 4G channels, to put Flir unit in, to be the Pro model.
Either is industrial strength rated, and submersible. A tough item indeed.