Have had the exact same problem, plus a secondary system.
- Using default watch face.
- Manual screen on only
- Disabled / removed every app I wasn't using. Basically use it as a watch, alarm clock and fitness tracker (mostly for indoor only workouts, so I don't use any of the advanced tracking).
- Been through every debugging / testing step I can, including a couple factory resets of my watch to see if it would fix whatever is going on.
Since 71.6.19, battery life has dropped to 30 - 42 hours or so. In addition, the screen has started getting washed out and can barely refresh at times. This is clearly a firmware issue, and despite repeated queries on iOS app store, zero traction. Finally on the forums as it feels like I'm running out of options. I bought my watch at the end of July. It's a little over two months old, and I'm bummed. IN all other ways, it's exactly what I need for a fitness tracker - long life, accurate metrics, and also acts as an alarm clock. But if this is the experience I can expect with FitBit now, looks like I'll need to keep looking, because this is unacceptably bad.
I'll likely be filing a complaint with the Washington state better business bureau, as well as the state consumer complaints group. I know it's a crazy year, and trying to provide a little more latitude, but two months with no responses on what are clearly systemic issues just tells me that maintaining existing customers does not appear to be their priority, but rather selling the latest watch is.
