Yeah the plus sized iphones were out for a long time when the 7ES was designed, so I imagine they ran all the big phones (minus the phablets) to ensure adequate fit. the plus iphones would be low hanging fruit to check off that box.

 

my iphone 12 with an Otterbox does NOT fit in there. Neither is the Samsung S10+ with Spiegen or the iphone XSmax with otterbox.

All these phone without a case would fit, but I like to keep the phones in a case.