One image shows a File System as FAT32, the other shows a FIle System as FAT. Not the same thing.
One image shows a Used Space of 512 bytes the other shows 0 bytes (no MBR/Partition table). Not the same thing.
Use whatever format works on all the devices you want to use it with. Personally I would stick with the Windows formated one. And depending on what size files you intend to write on the drive an exFAT format might be better.
