I think this is getting a bit out of hand.
The watch has a data on and off switch as shown in the photo which works perfectly.
The fact that this does not work with the Universal Launcher is a shame. The data switch had to be removed from the cellular settings in the 4g watches because it was causing a bug.
This watch and all the others were not made to support the universal launcher - the universal launcher is fantastic but it is a third party app. Not official.
The always on screen will never be 100 % in sync with real time or it will use more battery. I believe the update interval if you leave it on is almost 5 minutes. Which I think is acceptable given the watches have never had this feature before a few weeks ago.
The background task killer is now an option after the OTA.
It was found that the watch was aggressively killing all third party apps as the screen went off - to save power.
I discussed this with the firmware team and it is now a choice.
It is a setting that can be accessed by going to watch settings / More / background cleaner and turn on or off.
The included cable you get with the watch is for charging only.
A data cable will be available for purchase as soon as it is ready.
The straps can be changed with any good quality strap and I recommend you purchase a good quality leather strap rather than rely on the stock one - if you want to change it.
The OTA adds the taskill option and fixes some compatibility with Google apps in the square mode view.
I hope this helps.