Size Comparison...

Glock 43 and Springfield Armory XDe in a rough size comparison. If you have pockets that barely fit a 43, the XDe will likely be just a teeny bit too large for them. For me, both are belt guns, although either will work in the pockets of a winter coat.

The big difference is in trigger reach: With the trigger forward in DA mode, the diameter around the trigger face of the XDe is 7.5" as opposed to 6.25" with the Overwatch Precision TAC trigger in the Glock 43. This translates to about a third of an inch more in straight-line reach to the trigger. That's a full glove size in difference.
.