How about a larger battery and broader support for more LTE bands so you can use the watch while traveling. An accurate glucometer remains the killer feature that will sell tens of millions of watches
Samsung's flagship Galaxy Watch-series wearables are equipped with wireless charging - a spec that went without an upgrade in its 2023 iterations. That lapse will be addressed in their successors, however, according to a leak based on new FCC filings. They are accompanied by an additional registration for another Galaxy Watch, albeit without this update.