As I look at the Galaxy Watch 4 clasped to my wrist, I feel little desire to upgrade to a new Samsung model. There’s much excitement surrounding the incoming Galaxy Watch 9 and Galaxy Watch Ultra 2, and the recent rollout of the upgraded Health app teased a plethora of new features.Fitness index? Vitals? Hearing health!? They all read pretty exciting on paper. But after many years, Samsung and its contemporaries have yet to properly recreate a Garmin feature that wraps my entire day’s activity into a neat number. That feature? Body Battery.