It identified the SoC on board, along with the architecture and clock speed for each core. It also figures out the exact device brand, amount of RAM, storage, battery level, status and temperature. It can tap into the device’s sensor array, which is more of a gimmick than anything useful.
It’s worth noting that it is still in beta, so there might be some kinks to work out. If you’re eager to give it a go, you can find it here. https://play.google.com/store/apps/details?id=com.cpuid.cpu_z