[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

仅靠手机麦克风+加速度计的睡眠APP(如Sleep Cycle纯手机模式)只能推测睡眠阶段,准确率约60-70%;要获得心率变异性(HRV)、血氧、真实深睡/REM分期,必须搭配佩戴式设备(智能手表/戒指/手环),APP本身无法替代硬件

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90%
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Long-term
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