If you're new to AirPods, considering buying a pair, or just want to pick up some new tips.
AirPods and AirPower: Everything We Know
iWatch May Use Optical Sensors to Measure Heart Rate and Oxygen Levels
Apple's iWatch may include optical sensors designed to measure physical functions like heart rate and oxygen levels, according to electronics analyst Sun Chang Xu of Chinese site Electrical Engineering Times [Google Translation], who cites supply chain sources with knowledge of the matter. Xu also indicated that while Apple had planned on glucose monitoring, non-invasive methods have proven to be highly inaccurate and thus may not be included in the final product.
Measuring oxygen levels and heart rate are two features the iWatch has been previously rumored to include and optical sensors, which are used in many medical and health-related products, are a logical choice for the smart watch.
Pulse oximetry devices, which are often designed to fit over a finger, use optical sensors to measure oxygen levels in the blood. These sensors are light-based, sending two wavelengths of light through the skin. Differences in the way the light is absorbed allows the device to detect oxygen saturation in the blood. The majority of pulse oximeters clip to a fingertip or an earlobe, suggesting a wrist-based pulse oximeter is difficult, but not impossible, to develop.
Monitoring heart rate via optical sensor is a newer technology that is incorporated into several fitness products including the Mio Alpha heart rate watch. Typical heart rate monitoring in the past has required a chest strap, but with an optical sensor, a light shone on the skin can be used to measure blood flow through capillaries, thus determining heart rate.
The Mio Alpha heart rate monitoring watch
MacRumors spoke to Mio founder and CEO Liz Dickinson about the possibility of an optical heart rate measurement tool in the iWatch, and she believes the company would absolutely opt for electro-optical sensing for such a function. She also suggested an iWatch with heart-rate measuring capabilities would need to fit tightly to the wrist.
Underside of the Mio Alpha heart rate-sensing watch (Courtesy of DC Rainmaker)
Over the course of the last several months, Apple has hired a number of health experts in fields related to both heart rate monitoring and pulse oximetry. Two executives from pulse-oximetry company Masimo joined Apple, including its former Chief Medical Officer. Several of Apple's health-related hires have also been from C8 MediSensors, a company focused on non-invasive blood monitoring sensors.
While it is unclear exactly which health-related functions the final iWatch product might measure, rumors have indicated it will include multiple sensors capable of not only measuring heart rate and oxygen level, but also movement, sleep, hydration levels, and more.
Measuring oxygen levels and heart rate are two features the iWatch has been previously rumored to include and optical sensors, which are used in many medical and health-related products, are a logical choice for the smart watch.
Pulse oximetry devices, which are often designed to fit over a finger, use optical sensors to measure oxygen levels in the blood. These sensors are light-based, sending two wavelengths of light through the skin. Differences in the way the light is absorbed allows the device to detect oxygen saturation in the blood. The majority of pulse oximeters clip to a fingertip or an earlobe, suggesting a wrist-based pulse oximeter is difficult, but not impossible, to develop.
Monitoring heart rate via optical sensor is a newer technology that is incorporated into several fitness products including the Mio Alpha heart rate watch. Typical heart rate monitoring in the past has required a chest strap, but with an optical sensor, a light shone on the skin can be used to measure blood flow through capillaries, thus determining heart rate.
MacRumors spoke to Mio founder and CEO Liz Dickinson about the possibility of an optical heart rate measurement tool in the iWatch, and she believes the company would absolutely opt for electro-optical sensing for such a function. She also suggested an iWatch with heart-rate measuring capabilities would need to fit tightly to the wrist.
Having said that, using electro optical sensing requires a very specific type of design in order to work accurately. The sensor needs to be in tight contact with the skin with little ability to move.Electro-optical sensing also requires careful calibration to overcome interference from motion and noise. The Mio Alpha incorporates a built-in accelerometer and noise filtration software to garner accurate readings, and it is possible Apple might adopt some of the same technology.
Perhaps Apple does not care about accuracy during motion but in any event, at the time readings were being taken even if the person is still, the watch, or band, would need to be flush to the skin.
Over the course of the last several months, Apple has hired a number of health experts in fields related to both heart rate monitoring and pulse oximetry. Two executives from pulse-oximetry company Masimo joined Apple, including its former Chief Medical Officer. Several of Apple's health-related hires have also been from C8 MediSensors, a company focused on non-invasive blood monitoring sensors.
While it is unclear exactly which health-related functions the final iWatch product might measure, rumors have indicated it will include multiple sensors capable of not only measuring heart rate and oxygen level, but also movement, sleep, hydration levels, and more.
Related Roundups: Apple Watch, watchOS 5
Buyer's Guide: Apple Watch (Neutral)
[ 152 comments ]
Top Rated Comments
(View all)
66 months ago
Analyst believes iWatch may include method of accurately determining time of day.
66 months ago
Am I the only one NOT looking forward to everyone walking around wearing the exact SAME watch ?
66 months ago
Am I the only one NOT looking forward to everyone walking around wearing the exact SAME watch ?
Everyone wearing the same watch and using the same phone. What was the point of that Apple 1984 commercial again? I can't remember. :confused: :D
66 months ago
Am I the only one NOT looking forward to everyone walking around wearing the exact SAME watch ?
hipster.
do you own a windows phone? because no one uses that.
66 months ago
Analyst believes iWatch may include method of accurately determining time of day.
There haven't been any rumors that it may actually tell time. What if it doesn't? :D
66 months ago
Am I the only one NOT looking forward to everyone walking around wearing the exact SAME watch ?
Basically this! That's one thing I love about watches, how unique they are.
66 months ago
hipster.
do you own a windows phone? because no one uses that.
There are soooo many things wrong with your comment.
For shame
66 months ago
Apple's watch will dance circles around the competition, will be completely different internally and externally and will do 10x as many things, but I can absolutely guarantee their fanboys will bleat on about Apple copying them.
And then they'll continue to chant the same story when the competition's 2nd gen offerings all follow Apple's lead.
What the :eek:
66 months ago
I am officially disappointed in this forum....
Not one conspiracy theory nut bag has come forward to claim that the NSA is in cahoots with apple and will have a back door that lets them know where you are and kill you if necessary, or target a drone more accurately.... :confused:
Not one conspiracy theory nut bag has come forward to claim that the NSA is in cahoots with apple and will have a back door that lets them know where you are and kill you if necessary, or target a drone more accurately.... :confused:
[ Read All Comments ]
Satechi has offered a few options for iMac stands over the past few years, allowing customers a chance to elevate their iMac for a more ergonomic workspace, and gain access to a limited number of...
British audio equipment maker Bowers & Wilkins is expected to release its first AirPlay 2-enabled receivers in the near future.
A pair of new Bowers & Wilkins receivers named...
Google's "Keep" app for taking notes and making lists today expanded to the Apple Watch, allowing the app's users to use the note taking and list making functionality right on their...
Apple today seeded the third beta of an upcoming macOS Mojave 10.14.4 update to its public beta testing group, one day after seeding the third beta to developers and two weeks after releasing the...
Apple today seeded the third beta of an upcoming tvOS 12.2 update to developers for testing purposes, two weeks after seeding the second beta and a month after releasing the tvOS 12.1.2 update.
...
Apple today seeded the third beta of an upcoming watchOS 5.2 update to developers, two weeks after seeding the second watchOS 5.2 beta and a month after releasing watchOS 5.1.3.
Once the proper...
GM was one of the early adopters of CarPlay, with the feature debuting on a few 2016 Chevrolet models and rapidly spreading across the company's various brands including Buick, GMC, and...
Following an announcement last year and launch in Europe, Eve Systems today released the portable LED lamp Eve Flare in the United States and Canada. Similar to Hue Go, Eve Flare lets you pick up and...
