OP has only USB-C and Apple adapter. Why not microUSB? Most Android smartphones have microUSB.
Even on the accessory market you can find thousands of (cheap) adapters USB-C to microUSB, but
NO microUSB ADAPTER for DJI pocket!

Because life is big!
Joking aside... i guess DJI is forcing usage of newer devices with their camera.

they probably thought the connection was too slow as a standard interface

clocks in at 480 Mbps , USB C 5 Gbps + ,  Lightning up to 5 Gbps

Haha, then you also cannot use all the thousand adapters - but they WORK,
mechanical stabilty is bad (with an smartphone holder or cable no problem, but without?)

ManchesterOP Posted at 1-23 07:23
clocks in at 480 Mbps , USB C 5 Gbps + ,  Lightning up to 5 Gbps

Despite the popular belief, USB C standard has NOTHING to do with the speed.... just physical dimensions and some electrical stuff (voltage, current, etc...)
https://en.wikipedia.org/wiki/USB-C

Theoretically, someone can do USB-C cable that supports USB 1.0 only.... that will not clock at 480Mbps for sure.

Hi, thanks for the inquiry. We're sorry that the Osmo pocket can be activated and used using the mobile device that has a USB-type C port capability. We will forward your feedback with our team for consideration. Thank you for understanding.