In addition to the scope and specificity arguments, there is also the reasonable expectation of privacy. Geofence warrants catch up a ton of innocent citizens and violate their 4th amendment right to be secure in their persons and papers.

Outdoor cameras around a bank, and license plates both have their own justifications. Outdoor cameras surveillance is in an area with no reasonable expectation of privacy. License plates are mandated for liability and anti-theft purposes. Your personal phone is both private and has no other pre-textual reason for law enforcement to access it.