I have seen Dahua mini turrets in a jewellery store before.
I suspect these were the 'covert' cameras (separate processor box)
I do recall seeing something online about Hikvision having an all-one mini Turret.
Searching online quickly, I can find one but it's an HD analogue one.... :/
2MP DS-2CE70D0T-ITMF Hikvision 2.8mm 106° MINI Turret Dome Camera 20m IR BLACK
I can't seem to find IP ones... probably because of this small size! But how does crappy Arlo battery cameras have an HD camera for such a small size....?