Unverified82% confidenceDecision RuleTime unknown

表壳直径与佩戴舒适度：手腕周长＜15cm选40-42mm表盘，＞17cm选44-46mm；小手腕戴大表盘会硌手背且贴合度差，运动时晃动影响心率监测精度

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Unverified表径约42mm适合中等至偏大腕围，腕围偏细（如15cm以下）的用户佩戴可能显得表盘过大，建议实际试戴后决定。85% similar Unverified38mm表盘尺寸偏向传统正装比例，手腕偏细（小于16cm）佩戴效果协调，手腕较粗者可能视觉偏小84% similar Unverified表体较厚且表径偏大（约49mm），手腕细小的用户佩戴突兀且可能不舒适，建议手腕周长低于16cm的用户实际试戴84% similar

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