It usually only shows the -- for standby/usage if the watch hasn't been fully charged, though I've had it charged to the upper 90% range a couple of times and it's shown so I guess it's all selective as to how much the watch and/or phone hate their respective owner, haha.
Of course it didn't, because Apple thinks there's nothing wrong, I called and wasted over an hour trying to explain all of this, as well as the battery drain on my wife's S4. They suggested i install iOS 13.1 beta 4 which I did last night, and her watch still drains fast - usage and standby both increase by the same number of minutes. I'll install the released 13.1 but doubt much changed internally (since it's the same build # more or less) to warrant her watch sleep/battery issues. So now she has a watch she can't wear because it's dead halfway through her day.
I just posted over there on that thread -- not expecting Apple to do anything - at this point getting this battery drain fixed on my wife's watch is more important -- nothing like being reminded almost hourly that the battery has lost another 8% or so and that it will be dead soon.
If you look under usage in the watch app, are your usage and standby minutes matching minute for minute? I had this issue with one of the earlier builds of either iOS or WatchOS, and it had been fixed in whatever the next release was. What's most odd is that my wife is using the same S4 she was using with her Xr and had no drain issues, and I had no drain issues when I was using my Xs Max (which she now has) and my S4, but it seems *ANY S4* paired with her phone is getting hit with the battery drain - we paired her watch to my phone, no drain, and paired my watch to her phone, and she had the drain. We've wiped her phone clean, did not restore (iCloud, etc) and installed no apps, paired the watch and still drain. I'm pulling what little hair I have left out.
Spoke to them twice yesterday (more about my battery drain than the "watch not paired issue") and they ran tests on watch and phone and said all tests were OK. I mentioned the message about it no longer being paired, but they want to address the drain issue we're having first, since it makes the watch almost useless as it doesn't last through the morning/afternoon. Supposed to call me back today or tomorrow with whatever engineering says and go from there.
