Processing power, screen size and quality, active monitoring quality, AOD. There are a few things that will hugely impact battery life.
Lower battery life literally doesn't matter if you can charge it in the time it takes you to get ready in the morning. It has zero impact on usability.
The maximum battery lives advertised on sites are literally for doing nothing anyhow. My Garmin definitely does not have a multi day charge when I'm using it to track swimming.
You are doing the tech equivalent to her knees are too pointy.
Lower battery life literally doesn't matter if you can charge it in the time it takes you to get ready in the morning. It has zero impact on usability.
The maximum battery lives advertised on sites are literally for doing nothing anyhow. My Garmin definitely does not have a multi day charge when I'm using it to track swimming.
You are doing the tech equivalent to her knees are too pointy.