There are also phones like this mainly purpose for emergencies. Comes with torch light and powerbank.
I can see a flashlight phone like this phone being useful for taking pictures at night because the built-in flash and flashlight on some smartphones is not good sometimes, and there are cheaper digital cameras which don't have a light or flash. The powerbank would be useful for charging a phone or digital camera which you use for recording HD video which can use a lot of battery powerr.