Unverified87% confidenceTradeoffTime unknown
双频GPS续航与精度存在权衡：开启双频定位会使续航缩短约30%，日常10公里内训练用单频足够，仅在比赛或复杂地形时切换双频以省电
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87%
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Unverified多频GPS精度高但耗电快，开启双频GPS会使续航缩短约30-40%，日常骑行开单频GPS省电，只在需要精确轨迹时切换双频90% similarUnverified开启双频GPS会使续航缩短约40-50%，比赛前需权衡精度与续航，长距离比赛可全程单频、关键路段切双频89% similarUnverified双频GPS精度越高越费电——开启双频+全彩地图可使续航缩短30-50%；日常徒步用单频+航迹线记录反而能大幅延长续航89% similarUnverifiedGPS精度与续航互斥：开启双频多星会明显缩短续航，普通训练用单频省电模式即可，仅在比赛日启用全精度模式86% similarUnverified多频GPS精度高但耗电快，开启双频后续航通常缩水30-40%，长距离赛事需在精度模式和续航之间权衡，可设赛段智能切换86% similar
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