Unverified82% confidenceDecision RuleTime unknown
带心电图（ECG/心电）功能的机型需确认单独取得心电医疗认证，房颤筛查需要单导联ECG而非仅光学心率变异分析，两者临床价值差异大
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82%
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Long-term
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Unverified医疗级ECG(心电图)功能需要产品取得二类医疗器械注册证才具备房颤筛查参考价值，普通手环的'心电'仅为演示功能，有心律不齐风险的人应认准带医疗器械备案的机型88% similarUnverified心率监测多为握把式光电传感，精度不如胸带或医疗设备，心脏康复患者如需精准心率控制应额外佩戴专业心率带81% similarUnverified房颤(AFib)筛查功能需具备药监认证的ECG单导联心电图能力，纯PPG的'心律不齐提醒'只能作为预警，不能替代医疗诊断79% similarUnverified血氧、心率等健康数据仅供参考，非医疗级；心电图（ECG）功能在国行版本因医疗器械认证问题常被阉割或延迟开放77% similarUnverified心率胸带采用ECG电极原理，实测精度误差＜1%，远高于光学腕表（PPG）的3-10%误差，剧烈变速或HIIT训练必须选胸带而非腕表76% similar
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