Apple Watch 圈圈真的準？美國有研究指 Apple Watch 部份運動數據追蹤表現準度不足
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早前消委會就發表智能手錶評測報告，強調智能手錶、手環的運動數據都是估算，只適宜作參考之用。其實智能手錶在追蹤不同數據時準度的確存在著誤差。最近美國就有研究指 Apple Watch 於運動時記錄燃燒了多少卡路里的數據，準度並不是想像中的高。
美國密西西比大學的研究人員做了一個關於 Apple Watch 的研究，分析了 56 數據得出一個整合分析，並以 Apple Watch 每一項的表現都與標準的醫療級工具進行了比較。結果顯示 Apple Watch 於測量心率及步數方面極大部份情況下是準確的。研究人員指，測心率與步數的平均絕對百分比誤差（即衡量準確度的標準指標）分別為 4.43% 與 8.17%，然而估算燃燒了卡路里數據表現就達 27.96%。對於一般大眾買到的穿戴式裝置而言，低於 10% 的誤差值表現已被視為「十分優秀」，但研究團隊測試 Apple Watch 在走路、跑步、混合強度訓練和踩單車等多種活動中計算用戶燃燒了多少卡路里的數據時，卻發現其估算值大幅超出可接受範圍。
不過研究人員同時指出，這個數據本身就相當難以估算，因為涉及許多變數如體重及運動方式等等。因此，不要把每個數字都當作 100% 準確，而是可當成其中一種鼓勵的工具，達至恆常運動、保持追蹤習慣並維持動力。團隊還指出，目前 Apple Watch 的準確度已提高了不少，顯示蘋果在硬體及演算法方面都在逐步改進，而指出弱點可幫助開發者獲得更真實的回應建議，協助他們進一步研究，以製出更好的感應器或演算法，提升智能手錶追蹤健康數據的表現。
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智能手錶推薦 2025 | Apple、三星、Garmin 如何選？三鐵、跑山、單車各有不同，睇清楚點揀！
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