I understood that 64gb and up are all under the sdxc format/specification, yet many packages/labeling specifies that devices will work with only sd cards up to 64gb (and omit the sdxc spec) - is there any particular reason for this (other than the fact that larger sizes are uncommon/expensive)?
is there any difference when it comes to micro sd cards? would any device that supports 64gb micro sd cards also support 128gb micro sd cards? for example this phone?
I know it could also depend on the formatting, but are there any (somewhat common) formats that would work for 64gb but not 32gb? (fat32 works up to 32gb, so it wouldn't count, but is there anything similar to it that breaks at 64gb?)