Other watchmakers have made very different design tradeoffs to produce better battery life. A base mode Garmin will happily run for over a week. The fancy models over a month. They still have great tracking and notification features. Might be worth a look when your current hardware no longer meets your needs.

Explicitly trying not to pile on the “let me tell you how to manage your notifications” train by the way! That’s up to you and yours. Just nerding out on smartwatches.