苹果公司更新了其在美国市场的Apple Watch血氧监测功能，进一步提升了健康监测的准确性和用户体验。这一更新旨在为用户提供更全面的健康数据支持，帮助用户更好地了解和管理自身健康状况。

美国Apple Watch血氧功能更新

苹果公司宣布，将为部分Apple Watch Series 9、Series 10和Apple Watch Ultra 2用户推出重新设计的血氧功能。这一功能将通过今天晚些时候发布的iPhone和Apple Watch软件更新实现。

在美国，目前没有血氧功能的这些型号用户，只需将配对的iPhone更新至iOS 18.6.1，并将Apple Watch更新至watchOS 11.6.1，即可使用重新设计的血氧功能。更新后，Apple Watch血氧应用的传感器数据将在配对的iPhone上进行测量和计算，结果可在健康应用的呼吸部分查看。此次更新得益于美国海关最近的一项裁决。

此前购买的带有原始血氧功能的Apple Watch设备，以及在美国以外购买的Apple Watch设备，将不受此次更新的影响。

苹果团队致力于开发基于科学、以隐私为核心的健康、健身和安全功能，为用户提供行业领先的产品和服务。Apple Watch Series 9、Series 10和Apple Watch Ultra 2还提供心律不齐通知、心电图应用、睡眠呼吸暂停通知、跌倒检测、睡眠追踪、手腕温度感应、生命体征应用、噪音应用、药物应用和正念应用等多种实用工具，帮助用户过上更健康的生活。

如需更多信息，请联系苹果媒体帮助热线：media.help@apple.com。

1. 技术实现与专利争议：Apple与Massimo存在专利纠纷，Apple通过将血氧计算转移到iPhone上规避了这一问题。评论1提到Apple Watch的硬件未变，但血氧测量通过iPhone完成，使用红光和红外光的吸收比例进行估算。评论2指出Massimo在90年代发明了该技术，但由于法律原因，其日本专利未被视为现有技术。

   • "Apple was in a patent dispute over this feature with Massimo. Their workaround is to calculate blood oxygen on the iPhone, using the sensors from Apple Watch." (评论1)
   • "Massimo invented this technology (yay Massimo!) in the 90s yet their Japanese patents weren’t considered prior art (WTF?) because of technical legal reasons." (评论2)

2. 功能实用性与准确性：部分用户对血氧监测功能的实用性和准确性表示怀疑。评论6提到Garmin设备的血氧监测功能似乎无用，且耗电快。评论7指出Apple Watch的血氧监测结果不准确，与廉价但可靠的指夹式血氧仪相比存在明显差距。

   • "I have it on my garmin and it seems pretty useless. My oxygen level while I sleep has more to do with how tightly I’m wearing it that night than anything else." (评论6)
   • "In my experience, the Apple Watch blood oxygen monitoring was horribly inaccurate. It would report wildly variable results, often telling me that I had a blood oxygen level of 80%." (评论7)

3. 法律与市场策略：Apple将血氧计算转移到iPhone的做法被认为可能是法律分析的结果。评论4认为这一解决方案显而易见，但可能因法律分析而延迟。评论9则对Apple为恢复该功能所付出的努力表示不解，认为廉价的血氧仪已足够。

   • "Just offloading the analysis to the phone is extremely funny. It also seems like a pretty obvious solution, so I wonder if it was delayed by legal analysis." (评论4)
   • "You can buy a fingertip pulse oximeter for like $10. I understand the benefits of having all of these biometric readers directly on your personal device, but the perceived stress over getting this back into the watch seems... not wise?" (评论9)

4. 未来功能期待：有用户希望Apple Watch未来能加入血糖监测功能。评论3表达了这一期待。

   • "Hopefully blood glucose monitoring will come soon as well." (评论3)

5. 传统方法的对比：评论5提到了一种传统的血氧检测方法，认为其简单有效，暗示现代技术可能并非必要。

   • "My old fashioned doctor said to test oxygen levels, all you need to do is pinch your index finger nail down until it goes white." (评论5)