When I use my Galaxy Watch Active as standalone, the biggest battery consumer are Watch faces and Samsung health with 29% and 14%, respectively, but my watch still manages to reach ~8 hours with 13% left. But when I connect it to my Note 9 the entire time, the biggest battery consumer is Settings with 14% and reaches 13% battery in just 3 hours. I already tried resetting the watch and the phone. I already reinstalled the Galaxy Wearable app. The same case happened with my Galaxy Watch. 25% in 7 hours, but it has bigger battery.
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