1. Battery bug - rapid energy loss immediately after charging (don't matter how long and how full). Workaround - missing / not known - IMHO software bug
2. Sporadic loss of sensors during activity (Reset sensor hub) fills like all 10 minutes when watch is connected to external sensors (clarified by had746) Workaround - missing / not known
3. Mad barometric altimeter / floors counter - bad programmed?
4. Strange behavior of moveIQ - no effect on the amount of activity minutes, Running indoors started automatically leads to autosaving after pause and hung (rotating circles and word "saving"). Only reset (long press) helps. It seems to me that this function is not fully programmed/designed.
5. Weak precision of GPS tracking - can be much better. It's a really Garmin?
6. During a training, the countdown timer resets after an auto lap is triggered (see topic #4) I think the problem lies deeper - many developers of wigets, datafields have already complained that access to certain "system" data is closed - for example, the widget can not read some data - whether the watch is charging or not - it is an OS function and access is denied to it. I'm afraid the same with the timers. Which, of course, wrong security design. You can start the watch with a bad programmed WatchFace and trap in to boot loop.
7. Activity App overload CPU? I was indoor tracking to control my cadence - on the parkingfloor is quite dark and if I lifted my hand to look at the clock, the lighting lit up with a delay of perhaps 3 to 5 seconds. Practically useless function with such a delay - the lighting was lit when I was already lowering my hand.
...
what do you say, dear forum users - add, if I forgot something.
N.B. I really want to use the clock - I like the design, I like the declared functionality - provided they work as expected.