Unverified85% confidenceTradeoffTime unknown

GPS精度与续航存在权衡：双频L1+L5定位最准但耗电大幅增加，城市路跑单频（仅L1）配多星系统已足够，无需为精度牺牲续航

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Unverified定位精度与续航的权衡：双频L1+L5精度最高但最耗电，多数手表提供'智能省电GPS'模式牺牲精度换续航，日常城市跑步用单频GLONASS/北斗混合即够，无需长期开双频89% similar Unverified运动手表选购看卫星定位精度：支持双频GPS（L1+L5）的机型在城市高楼、林间轨迹漂移显著小于单频，专业跑者、越野爱好者应认准双频多星系统定位84% similar

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