Google’s Pixel Watch 5 Can Now Detect Breathing Emergencies

谷歌 Pixel Watch 5 现已支持检测呼吸紧急情况

Google’s first smartwatch debuted just four years ago, and at the time, the company went to great lengths to stress the accuracy of the Pixel Watch’s heart rate sensor. Even if Google was late to the wearable party compared to peers like Apple and Samsung, that focus on heart rate seems to be paying off with new features that are yet to be seen on competing products.

谷歌的首款智能手表于四年前首次亮相，当时该公司不遗余力地强调 Pixel Watch 心率传感器的准确性。尽管与苹果和三星等同行相比，谷歌进入可穿戴设备领域较晚，但对心率监测的专注似乎正在获得回报，并带来了竞争对手产品尚未具备的新功能。

On Wednesday, Google introduced the latest generation of its smartwatch, the Pixel Watch 5 (alongside the Pixel 11 smartphone family). The hot new health feature? Breathing Emergency Detection. Similar to the first-of-its-kind Loss of Pulse Detection feature introduced on the Pixel Watch 3, this new capability can be triggered by a variety of factors, like drug toxicity, accidents, severe pneumonia, and choking.

周三，谷歌推出了最新一代智能手表 Pixel Watch 5（以及 Pixel 11 系列智能手机）。这项热门的新健康功能是什么？即“呼吸紧急情况检测”（Breathing Emergency Detection）。与 Pixel Watch 3 上首次推出的“脉搏丢失检测”（Loss of Pulse Detection）功能类似，这项新功能可由多种因素触发，例如药物中毒、事故、严重肺炎和窒息。

“Using a combination of data from the advanced sensors, including a PPG, accelerometer, and barometer, we’ve designed an AI-based algorithm running on device to detect a persistent drop in oxygen saturation and then call Emergency Services for you and even share your location,” says Francis Hoe, a product manager on Google’s Pixel Watch team.

谷歌 Pixel Watch 团队的产品经理 Francis Hoe 表示：“我们结合了来自高级传感器的数据，包括 PPG（光电容积脉搏波描记法）、加速度计和气压计，设计了一种在设备端运行的 AI 算法，用于检测血氧饱和度的持续下降，随后为您呼叫紧急服务，甚至共享您的位置。”

This feature hasn’t been cleared by the Food and Drug Administration, which is why it’s not launching in the US at the moment; Google says it’s working with regulators to expand availability. It will only be available in select markets in the European Union to start. Google also says it’s not intended for people with preexisting respiratory conditions and isn’t designed to diagnose or treat medical conditions.

该功能尚未获得美国食品药品监督管理局（FDA）的批准，因此目前不会在美国推出；谷歌表示正在与监管机构合作以扩大可用范围。该功能初期仅在欧盟的部分市场提供。谷歌还表示，该功能不适用于患有既往呼吸系统疾病的人群，也并非旨在诊断或治疗任何医疗状况。

You also don’t need a new Pixel Watch 5 to take advantage; Google’s bringing this feature to the Pixel Watch 4 as well. And two other big new capabilities are also coming to older devices: blood pressure and insulin resistance trends. These are coming to the Google Health app and will be available for anyone with a Fitbit Air, Pixel Watch 3, Watch 4, or Watch 5 later this fall.

您也不需要购买新款 Pixel Watch 5 才能使用此功能；谷歌也将此功能引入了 Pixel Watch 4。此外，还有两项重大的新功能也将登陆旧款设备：血压和胰岛素抵抗趋势监测。这些功能将集成到 Google Health 应用中，并于今年秋季晚些时候向所有使用 Fitbit Air、Pixel Watch 3、Watch 4 或 Watch 5 的用户开放。

“It might have felt strange—why are we harping about heart rate accuracy so much—back then,” Sandeep Waraich, senior director of Wearables at Google, tells WIRED. “We kept investing in that, and now it’s very improved, because all these large sensor models can detect these signatures, insulin resistance, blood pressure trends—but underneath, they need a really capable raw signal.”

“当时大家可能会觉得奇怪——为什么我们一直强调心率准确性，”谷歌可穿戴设备高级总监 Sandeep Waraich 告诉《连线》（WIRED）杂志。“我们一直在该领域持续投入，现在准确性已大幅提升，因为所有这些大型传感器模型都能检测到胰岛素抵抗、血压趋势等特征，但其底层基础是需要非常强大的原始信号。”

Google is placing these features into a new umbrella category called Health Guardian, which includes existing features such as irregular rhythm notifications, high/low heart rate notifications, Loss of Pulse, and Sleep Breathing Quality. The idea is to put these capabilities in a place where users can easily see what they have turned on, similar to Google’s Personal Safety app on Pixel phones, which shows features like Emergency SOS, Safety Check, and Car Crash Detection in one place.

谷歌将这些功能归入了一个名为“健康守护者”（Health Guardian）的新类别，其中包括现有的不规则心律通知、高/低心率通知、脉搏丢失检测和睡眠呼吸质量监测等功能。其理念是将这些功能整合在一起，方便用户查看已开启的项目，这类似于 Pixel 手机上的“个人安全”（Personal Safety）应用，该应用将紧急求救（Emergency SOS）、安全检查（Safety Check）和车祸检测（Car Crash Detection）等功能集中显示。

Many of these Health Guardian features will deliver monthly reports based on the 24/7 passive monitoring, with Google then offering suggestions on what you can take action on to improve your health. You can either consult its new AI-powered Health Coach, or send your data to your physician.

许多“健康守护者”功能将基于 24/7 全天候被动监测提供月度报告，谷歌随后会针对您可以采取哪些行动来改善健康状况提供建议。您可以咨询其全新的 AI 健康教练，或将数据发送给您的医生。

The blood pressure and insulin resistance trends features are meant to help people proactively monitor these potential health issues before it’s too late—high blood pressure is the leading risk factor for cardiovascular diseases. Last year, Apple debuted hypertension notifications—when the watch detects high blood pressure—for select Apple Watch models, and Samsung offers blood pressure monitoring on its smartwatches as well (it requires monthly calibration with a cuff).

血压和胰岛素抵抗趋势功能旨在帮助人们在为时已晚之前主动监测这些潜在的健康问题——高血压是心血管疾病的主要风险因素。去年，苹果为部分 Apple Watch 机型推出了高血压通知功能（当手表检测到高血压时），三星也在其智能手表上提供了血压监测功能（需要每月使用袖带进行校准）。

“We’ve been collecting, opt-in for many years with Fitbit, a large model of the PPG signals that are coming through from the user, and we have an understanding of different conditions that users have,” says Rishi Chandra, vice president for Google Health. “If we have data of people who have elevated levels of blood pressure, there’s a unique signature marking that, and we can match it to, for example, an arm cuff for prediction of high blood pressure.”

谷歌健康副总裁 Rishi Chandra 表示：“多年来，我们一直通过 Fitbit 收集用户自愿提供的 PPG 信号大数据模型，并对用户所处的不同健康状况有了深入了解。如果我们拥有血压升高人群的数据，就会有独特的特征标记，我们可以将其与臂式血压计等设备进行匹配，从而预测高血压。”

Daniel Jones, former president of the American Heart Association, says there are no wrist devices the AHA recommends for monitoring blood pressure. Arm cuffs remain the gold standard for diagnosis and guiding medication; however, the AHA noted late last year that cuffless devices like smart rings and smartwatches “show great promise” as alternatives and have “the potential to transform” hypertension care.

美国心脏协会（AHA）前主席 Daniel Jones 表示，目前没有任何腕戴设备是 AHA 推荐用于监测血压的。臂式血压计仍然是诊断和指导用药的黄金标准；然而，AHA 在去年年底指出，智能戒指和智能手表等无袖带设备作为替代方案“展现出巨大前景”，并“有潜力改变”高血压护理方式。

Barbara Eichorst, vice president of Health Care Programs at the American Diabetes Association, echoed that sentiment, writing in an email to WIRED that consumer wearable tech isn’t considered a replacement for established blood pressure measurements, and there are no recommendations for using consumer wearables to measure or monitor insulin resistance trends. But Eichorst says monitoring “can be valuable when the information meaningfully supports diabetes management.”

美国糖尿病协会（ADA）医疗保健项目副总裁 Barbara Eichorst 也表达了同样的观点。她在给《连线》的一封电子邮件中写道，消费级可穿戴技术不能被视为现有血压测量方法的替代品，目前也没有关于使用消费级可穿戴设备来测量或监测胰岛素抵抗趋势的建议。但 Eichorst 表示，当这些信息能有效支持糖尿病管理时，监测“可能具有价值”。

“The important consideration is not simply having access to more health data, but whether the information is clinically meaningful, understandable, and can appropriately support diabetes management,” she says.

她说：“重要的考量不在于仅仅获取更多的健康数据，而在于这些信息是否具有临床意义、易于理解，并且能够适当地支持糖尿病管理。”