All that and no improvement to battery life. I've been wearing an Apple Watch for a few years, the data collection is good but the abysmal battery life and associated charge management is a real downer. I'm Apple ecosystem for almost everything but the battery and touch sensitivity issues are enough to get me to do the work to go to a different platform for health data.
I don't understand features like sleep apnea monitoring on a device with an "all-day, 18-hour battery life," unless they're expecting people to get one watch for the day and another one for the night.
Even if it was just 24 hours that's not good enough. Let's say you religiuosly charge it immediately after arriving home from work, at 6PM. Then one day you go out to dinner and grab some drinks and stay out until 11. It'll have been 28 hours since you grabbed it off the charger the previous day so you won't have use of your watch that evening.