the A series is smallish, the last small android phone was probably the Asus Zenfone 10, then Asus axed that line and merged the Zenfone line and ROG phone line and followed the ROG phones size. A phones however aren't flagship so theyd fail the check.
hence why i kinda wanted to put "small" in emphasis, because small today isn't the same as small before. its still small enough that it can be used in one hand though, just on the edge of it. Almost everything else is larger than it.
My wife's P7 and my P8P are both roughly the same dimensions as an old landline handset would be (my phone is maybe half an inch thicker than the landline at my work)
Cell phones of the 00's were small by phone standards, modern phones are closer to old landline handset sizes than 00's cells, so I'd say the 00's cells are the ones off the standard