Unverified90% confidenceFactTime unknown
PPG技术容易受到皮肤色素、佩戴松紧度、运动伪影等因素干扰，导致消费级设备与医疗级心电图（ECG）之间存在精度差距
1
Sources
90%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
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