Inside the LG G5

Before opening up the device itself, popping out the SIM tray gives you access to not only the SIM itself but also a slot for a Micro SD card. This can be up to the capacity of 200GB, which matches that offered by the Samsung S7 (and is also the biggest capacity currently on sale in this format). With expandable storage seeming to have been on the way out last year, it's good to see that rumours of its demise had been greatly exaggerated.
See also: Samsung S7 review and Inside the Samsung Galaxy S7