I think the issue with battery life for things like this is some dodgy wording.
When they say "all day battery life" they probably aim for something like 14 hours. Maybe 16. But what people want is 24 hours.
I would be fine with 24 hours. If I get up early for a meeting, and then go straight out to dinner and drinks, I need that thing to last. That could mean 6am to 11pm. That's 17 hours.
If they are really giving people 12 hours (which is probably 16 hours when it's not the new toy) on a new battery, that is simply not enough.
My phone still has 30% battery when I plug it in at night, on a heavy day of use. My watch needs to be the same.
When they say "all day battery life" they probably aim for something like 14 hours. Maybe 16. But what people want is 24 hours.
I would be fine with 24 hours. If I get up early for a meeting, and then go straight out to dinner and drinks, I need that thing to last. That could mean 6am to 11pm. That's 17 hours.
If they are really giving people 12 hours (which is probably 16 hours when it's not the new toy) on a new battery, that is simply not enough.
My phone still has 30% battery when I plug it in at night, on a heavy day of use. My watch needs to be the same.