'AirPods 2' could be a greater health monitoring device than the Apple Watch

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The sheer number of monitoring benefits you can get from a device in your ear means that the forthcoming "AirPods 2" may have a big future in Apple's health plans -- and there is still more they may be able to do.




You know that Apple is going to release an updated AirPods 2 at some point. If you've just got one of the existing model, though, then you typically like them so much that it's hard to imagine how they could be improved. And, if you've had them since their launch in late 2016 then you're probably wishing that their battery charge had stayed as great as it was.

The only thing we know for sure is that AirPods 2 will have a wireless charging case. But, there is so much more that Apple appears to be planning.

Through the company's latest hiring and its filed patents, we can get an idea of where the AirPods are going. So much of this is to do with medical functions, though, that it looks like Apple is concentrating on health at least as much as it is, say, audio quality.

Maybe we'll get the rumored "Hey, Siri" audio feature next, but there are a startling number of things Apple could do with a device stuck in our ear.

Long-term plans

AirPods were announced in September 2016 and just barely made it to online orders by the end of that year. However, as early as September 2015, Apple had applied for three patents to do with Earbuds with Biometric Sensing.

So, this is not something new. Apple has been working on the AirPods for years and that included health-related uses for them.

Early Apple patent for hearing-aid style AirPods (source: USPTO)
Early Apple patent for hearing-aid style AirPods (source: USPTO)


These patents weren't known about until after they were approved in early 2017, when the much-delayed devices were finally appearing in Stores. All three, though, are to do with variations on, using AirPod-like devices as hearing aids.

We eventually got this feature, or at least a version of it, in September 2018 when iOS 12 was officially launched and included what Apple calls Live Listen.

So that's three years from the patent being filed to the feature being part of a shipping iOS. Apple is playing a long game here, as it so often does, and it's also leveraging its entire ecosystem. Live Listen uses the iPhone's microphone, iOS's ability to send data over Bluetooth, and then also the AirPods.

Fit and finish

The drawings included with those 2015 trio of patents don't resemble AirPods but others do. There was a 2014 patent from Apple for sensor-packed health monitoring headphones with 'head gesture' control and there's only one thing in the drawings that stands out as not being about AirPods.

Apart from the wires, these drawings in a patent about head gestures look very much like AirPods
Apart from the wires, these drawings in a patent about head gestures look very much like AirPods


True, the very end that you stick in your ear has a different shaped design in the final AirPods but really the only difference is that these drawings show wires. Then the description of what the patent covers fits right in.

AppleInsider, summarized the 2014 patents.
According to the patent, the fitness monitoring system is cleverly ensconced in a set of headphones, something users commonly wear to listen to music during workouts. By positioning the headset in or near the ear, the embedded activity sensor can pick up temperature, perspiration and heart rate data, among other metrics.

In addition to skin-based readings, an accelerometer may also be incorporated into the earbud chassis to facilitate the collection of accurate movement data. Some embodiments call for multiple accelerometers, each corresponding to a different axis.

Sounds easy

We can continue to extrapolate from Apple's filed patents but we can also examine just what is physically possible with an in-ear device.

Some of these already seem like quick wins for Apple, such as motion monitoring. Right now we associate this with the Activity app on our Apple Watches but there are good reasons to think that we'd get better information from our ears.

Even now when your Watch tells you that you need to take a brisk walk, you can't help but shake your wrist exaggeratedly or even dance around a bit. The Watch isn't very easily fooled by that wrist motion, but unless you also head-bang a lot, a monitor of your head movement could be more accurate.

And it could also be more useful because it maintains that accuracy over a longer period. The more you can have someone wear a monitor, the more complete the data recorded.

So as long ago as 2013, the IEEE Journal of Translational Engineering in Health and Medicine (abstract)described the problems of attaching devices when you want to study a problem such as sleep apnea. "Because many sensors need to be attached to the patient, the quality of sleep is reduced which, in turn, can affect the results of the examination."

The paper's authors then presented preliminary results from trials meant to "evaluate the feasibility of the in-ear sensor for cardiovascular monitoring during sleep."

Their concern was over a patient's ability to keep the monitor in place without either disrupting them or affect the data that was being recorded. Nature magazine later looked at the practical issues of wearable monitoring equipment and how in-ear alternatives could also help with more social issues than technical or medical ones.

"We address these challenges through an inconspicuous earpiece, which benefits from the relatively stable position of an ear canal with respect to vital organs," it says in July 2017's Hearables: Multimodal physiological in-ear sensing (abstract). "Current physiological monitors... are inconvenient and/or stigmatizing."

Nobody's ever accused Apple's various EarPods as being inconspicuous, but if they stand out very visibly, we're now so used to seeing them that we no longer pay any attention.

With a device that both goes in your ear and stays there for a significant amount of the day, you can get a more reliable measure of movement. As the 2014 patents claim, you can also check temperature.

The problem is getting them to stay in your ear. Current AirPods don't suit everyone's ears any more than Apple's wired EarPods do, but the company will need a much more snug fit to get certain health features working.

Apple patent for a way of keeping an AirPod or similar device in ear
Apple patent for a way of keeping an AirPod or similar device in ear


And it's working on it. According to yet another patent, this time in 2018 and called Earbuds with compliant member, Apple has proposed ways to position the AirPod earpiece in a way that gets it enough continuous contact with your skin to take measurements.

Motion detection needs you to have the device stable in your ear but then other measurements need much more. Your Apple Watch today can monitor your heart rate by using a photoplethysmogram (PPG) sensor to shine light on your skin, so could future AirPods.

A stable, steady fit for the AirPods gets more important with even further types of measurement that could be possible such as an electroencephalogram (EEG). Medical experts AppleInsider spoke to say that AirPods could well be used for this, but it's some time off.

"[with existing in-ear EEG protypes] they still need to wet it with saline solution to maintain a good contact," says our expert. "Otherwise you would get a lot of motion artifacts [data readings affected by movement] and also have to deal with electrical impulses from chewing or speaking."

When it all comes

With that three-year gap between hearing-aid idea and the Live Listen feature launching, none of this can be expected to be quick. You can imagine that any AirPods 2 will include at least some of these possibilities, but it's more likely that Apple is already looking at AirPods 3, 4 and beyond.

There aren't many companies that could be spending multiple years researching for future products and there probably aren't any but Apple who are actually pioneering this work.

It's something that does seem important to the company and so much so that Tim Cook said he believes it's what the firm will be remembered for. "I believe, if you zoom out into the future, and you look back, and you ask the question, 'What was Apple's greatest contribution to mankind,' it will be about health," he said.



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Comments

  • Reply 1 of 16
    wood1208wood1208 Posts: 1,763member
    In my humble opinion, Apple should have 2 versions of Airpods. One with regular improvements for wireless audio and another with all kind of health sensors. Both can do well in a world(market,users) of two different needs(price and features) So, Airpod 1 will continue improving audio features and other keep adding and imporving haelths features besides audio. Airpod 1 will be cheaper than Airpod 2.  Those two versions will continue enhancements.
    edited February 4 bonobobwatto_cobra
  • Reply 2 of 16
    thttht Posts: 3,038member
    They could probably do an iPod Shuffle style feature. Put 4 GB of NAND inside, cache music and podcasts, then a user can go do some activity without their phone or watch. 

    They still need to double cellular talk time, so some combination of bigger batteries and more efficient BT signal is needed. 

    Then, noise isolation or noise cancellation with passthrough functionality would be a nice feature too. 
    watto_cobra
  • Reply 3 of 16
    Viable hearing aid? High end hearing aids cost $6,000. Apple could match the performance for a lot less. And the need for an audiologist may go away with new laws.
    patchythepiratelolliverwatto_cobra
  • Reply 4 of 16
    sandorsandor Posts: 493member
    So all the monitoring my Basis Peak had 5 years ago (heart rate, skin temp, perspiration, sleep tracking) it also had 4 days of battery life.

    I am still waiting for a watch with similar capabilities.
    Currently use a Garmin VivoactivHR, which give me almost a full week per charge, but lacks the sensors minus heart rate, and really stinks at sleep tracking.
    All my favorite devices disappear :( Zeo was without a doubt the best sleep tracker i have had, and, most importantly, led me to consistently better sleep.

    tylersdad
  • Reply 5 of 16
    I'm probably in the minority on this one, but I would prefer longer battery life to a bunch of new sensors that decrease battery life. I really want a pair of these for work, but the 2 hour talk time wouldn't even get me through a quarter of my calls for the day. 
  • Reply 6 of 16
    tylersdad said:
    I'm probably in the minority on this one, but I would prefer longer battery life to a bunch of new sensors that decrease battery life. I really want a pair of these for work, but the 2 hour talk time wouldn't even get me through a quarter of my calls for the day. 
    You talk for 8 hours straight? I’m on a lot of calls at work and after a call ends the APs go into their case where they begin recharging immediately and quickly.
    watto_cobra
  • Reply 7 of 16
    tylersdad said:
    I'm probably in the minority on this one, but I would prefer longer battery life to a bunch of new sensors that decrease battery life. I really want a pair of these for work, but the 2 hour talk time wouldn't even get me through a quarter of my calls for the day. 
    You talk for 8 hours straight? I’m on a lot of calls at work and after a call ends the APs go into their case where they begin recharging immediately and quickly.
    Unfortunately, there are days where I'm on calls for 8 hours of my day. Typical is 3 - 5 hours of calls a day, but they need to be able to stand up to my most extreme use case.
  • Reply 8 of 16
    Meh, I hope they can first design one that fits my ear. 
    n2itivguywelshdogsandorbeowulfschmidt
  • Reply 9 of 16
    I sure wish Apple would make AirPods stand alone smart devices able to at least play music, podcasts and audiobooks without being tethered to an iPhone.
  • Reply 10 of 16
    welshdogwelshdog Posts: 1,646member
    Meh, I hope they can first design one that fits my ear. 
    It is difficult to understand why they don't offer a custom model with soft, molded ear fitments. My wife had a pair and I thought they were pretty good, but my ear began to hurt after about 10 minutes. Also, how about giving Airpods some kind of hidden, fixed ID number so that when you lose a pair you can report them as missing and Apple would not allow devices outside your Apple ID to pair with them?
    edited February 5
  • Reply 11 of 16
    In the future only Apple device owners will be healthy while Android & Windows owners will be obese. I can’t wait 😉.
  • Reply 12 of 16
    fastasleepfastasleep Posts: 2,273member
    I sure wish Apple would make AirPods stand alone smart devices able to at least play music, podcasts and audiobooks without being tethered to an iPhone.
    You can tether it to a Watch, is that not good enough for now?
    watto_cobra
  • Reply 13 of 16
    I sure wish Apple would make AirPods stand alone smart devices able to at least play music, podcasts and audiobooks without being tethered to an iPhone.
    You can tether it to a Watch, is that not good enough for now?
    Just need the watch to be untethered first. 
  • Reply 14 of 16
    Meh, I hope they can first design one that fits my ear. 
    I completely understand why Apple doesn't want to make multiple designs to fit the myriad different types of ear, but something that would let them fit more ears, without compromising the design, would be nice.  Not a designer, so I have no doubt it's way more difficult than I imagine, but other manufacturers have been providing similar, if not identical, capabilities for years, so if anyone could do it, Apple could.
  • Reply 15 of 16
    Question: Might they be able to answer phone with a voice command? I had BlueAunt Q2, and you say "Answer" or "ignore" and it will answer the call. neat :) 
    watto_cobra
  • Reply 16 of 16
    mattinoz said:
    I sure wish Apple would make AirPods stand alone smart devices able to at least play music, podcasts and audiobooks without being tethered to an iPhone.
    You can tether it to a Watch, is that not good enough for now?
    Just need the watch to be untethered first. 
    Not sure what you mean. You can load music and what not onto your Watch and leave your iPhone behind.
    watto_cobra
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