Unverified84% confidenceTradeoffTime unknown

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

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84%

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运动GPS手表category

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UnverifiedGPS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89% similar Unverified追踪频率与定位精度的权衡：GPS定位每次刷新耗电大，追求高精度连续轨迹（如运动记录）会牺牲续航，而基站/WiFi辅助定位省电但精度低，选购时明确是要精准轨迹还是长续航监护81% similar

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