The leak, courtesy of a South Korean safety regulator, rates this mysterious battery (referenced as EB-BL705ABY) at 578mAh, slightly larger than the 573mAh present in the Galaxy Watch 5 Pro.
Currently, the OnePlus Watch 2 (500mAh) and TicWatch Pro 5 (628mAh) are the only other true multi-day Wear OS devices on the market - though, aside from the battery life, aren't without their issues.
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