原片標題：New Apple Watch Series 12 and Ultra 4: Everything announced about the ultimate wearable
原片說明
Apple Watch Series 12 and Apple Watch Ultra 4 feature the most accurate heart rate sensing in a wearable.* Unlock new features like high-frequency heart rate tracking, heart rate variability in daytime vitals, and a readiness score that lets you know when to rest or put yourself to the test. And now every day feels more effortless with Siri Al and Audio Intelligence. Apple Watch Ultra 4 takes the ultimate running smartwatch even further with extended battery life, game-changing fitness tracking, and precision dual-frequency GPS.
Learn more about Apple Watch Series 12: https://apple.co/4xLO2xJ
* Based on data from an Apple-conducted study of heart rate accuracy, during July and August 2026, utilizing commercially available best-selling wearables available as of June 2026. For more information, visit http://apple.com/HRAccuracy.
Siri AI is rolling out in English. Some Audio Intelligence features coming in beta late 2026. Usage limits may apply.
Apple Intelligence is available with Siri and device language set to Chinese (Simplified), Chinese (Traditional), Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Spanish, Swedish, Turkish, or Vietnamese. Some features may not be available in all regions or languages. Some devices may not be available in all regions. Siri AI is available in beta in watchOS 27 and requires an Apple Intelligence–enabled device set to a supported language. Available in English to start. Siri AI will not be initially available in the EU on watchOS. Certain Siri AI and Apple Intelligence features have usage limits. Expanded access to such features will be available for a fee in the future. Use of these features is subject to the Apple Intelligence Terms and Conditions. Learn more at apple.com/apple-intelligence.
Audio Intelligence includes Live Rewind, Siri Recap, Sound Recognition, and faster Shazam and requires Apple Watch Series 12 or Apple Watch Ultra 4. Live Rewind and Siri Recap will be available in beta in late 2026 and require an Apple Intelligence–enabled iPhone 16 or later (excluding iPhone 16e). Will be available in English to start and will not initially be available in the EU. Certain Audio Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Live Rewind and Siri Recap. For more information, visit support.apple.com/148354.
Battery life depends on device settings, environment, usage, and many other factors.
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Apple Watch 發表會我每年都看，但這次看到「HRV 每五分鐘量一次」我直接從椅子上坐直。以前只知道它會提醒你心跳過快，現在連身體恢復狀況都幫你打分數，這支影片把 Series 12 和 Ultra 4 的健康感測、音訊 AI、續航升級全部講完，看完你會想把手上的舊款換掉。
這次最硬的核心是新的健康感測系統，電極面積變大、光電二極體改環狀排列、綠光 LED 效率更高，背景心率從原本的頻率變成每五秒量一次，HRV 每五分鐘取樣。他們還找了數百人對比其他穿戴裝置，用 ECG 胸帶當基準，結果宣稱 Apple Watch 是市面上心率感測最準的穿戴裝置。這段資料講得很快，但「60 倍頻率」這個數字值得你停下來想一下。
背景心率測量頻率提升 60 倍02:32
Readiness 分數幫你決定今天該衝還是該休息
每天早晨 Apple Watch 會分析你最近的活動量、生命徵象和睡眠，給出一個恢復分數，分為恢復、調整步調、準備好、全力以赴四個等級。這個分數不是早上看完就沒了，白天會即時更新，你也可以在 iPhone 的健身 App 裡檢視。對有在練跑或重訓的人來說，這比單純看睡眠時長實用多了，至少你知道了該不該排休息日。
