Thermal cameras such as the ones from FLIR are great for doing repairs and inspections. You can always buy standalone thermal cameras or modules that add such a feature to your smartphone. The Ulefone Armor Mini 20T Pro comes with one built-in. It is a rugged thermal imaging smartphone powered by the FLIR Lepton 3.5 mic-camera with 160x120p resolution and 25Hz refresh rate. It is powered by the MediaTek Dimensity 6300 with 8 cores, 8GB RAM, and 256GB of storage space. It is MIL-STD 810G certified and IP68 & IP69K rating.
This smartphone has a 4.7-inch HD+ display with 90Hz refresh rate. It has 50 and 32MP cameras in the back. There is also as 32MP selfie camera with a 80.4-degree field of view. The Armor Mini 20T Pro has a 6200mAh SS battery that can operate in extreme cold. It supports 33W fast charging and reverse charging. You also get a light with 500 lumens brightness.