I'm struggling to think of a reason why you would want it to link to your phone via Bluetooth when it doesn't do data logging
There is a good reason for it, I've used it in the past. So you have a large prototype boards, lots of testpoints, and you are supposed to verify that all the resistors are good on it. There was an excel sheet, with the testpoints listed on it, and I've just used a Keysight 1242 with it's bluetooth connected to the laptop, and connected to excel. So I read the testpoints to be a measured, found them on the board, placed the probes, touch-hold, and it beep-booped the data into excel. Quite convenient, the test was done in minutes, instead of writing anything down by hand.
And this required an enormous amount of software work on their side, including makros for excel. And this is something that a chinese company will not understand why you would need it. They just place bluetooth, because other have it, and completely won't do the research on how you actually use it.