Mobile Phone Camera for Videography?

I’ve been trying to purchase a good video camera that can,

Record up to 4K video
Has slow motion recording (at least 120 fps) and timelapse photo/video recording
Has a 1″ sensor, or a smaller sensor that can take decent video footage in low light
Has a 3.5mm audio connector to connect an external mic
Has good optical zoom (preferably)
Has manual focus in addition to auto focus (preferably)
Has electronic & optical image stabilisation (preferably) – I have a video tripod, but carrying it everywhere may not be practical

I have considered Action Cameras (Gopro 7 announced recently is still a consideration), DSLRs (rejected due to their bulky form factor, lens requirements), Point-and-Shoot/Bridge Camera (Panasonic fz1000 is under consideration), 360 Cameras (waiting for better resolution with good over-capture features), Drone Cameras (operation is too complicated, esp. outdoors), and every other device with a camera attached to it!!!

Recently, I found that (flagship) smart phones can also record very good video. In fact, there have been movies shot with the iPhone!

So, for now, I have decided to buy a mobile phone with 4K Video recording. I have shortlisted One Plus 6 (waiting for One Plus 6T release in Oct before deciding) and Xiaomi Pocophone F1 (If you haven’t heard about this phone yet – Google now, learn, and BUY immediately