Unverified80% confidenceDecision RuleTime unknown
采用整机浸水式加热（IPX7防水），加热效率相对底部局部加热更均匀，但首次加热至目标温度的速度不算快，建议先加温水再开机恒温
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80%
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Long-term
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Unverified防水等级选IP55及以上防汗，IPX7以上可短时浸水；但要注意IPX等级只测淡水，汗液含盐分腐蚀性更强，运动后需及时用清水冲洗擦干80% similarUnverifiedIPX7全密封机身通常牺牲扬声器音质与散热，导致高温环境性能不稳定；而追求散热的开孔设计又难以做到高防水，两者难以兼得，需按主要使用气候取舍78% similarUnverifiedIPX7防水等级，雨天骑行和冲洗无需担心进水，防水性能在同类产品中属于较高水准78% similarUnverified防水等级至少IPX7才能应对雨天跑和汗水浸透，IPX4仅防溅水，长期出汗环境下电路易腐蚀失灵78% similarUnverified防水等级低于IPX7的体温手环不建议用于洗澡或大量出汗的发烧场景，汗液渗入会导致测温漂移和电路故障；只标注'生活防水'的产品实测多为IPX4级别78% similar
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