Amazon Halo: A health tracker that’ll measure physique fats together with your cellphone digital camera


Amazon has entered the well being and health world with Halo, a subscription service and accompanying health band that unlocks an array of well being metrics, together with exercise, sleep, physique fats and tone of voice evaluation, to find out the way you sound to others. Amazon’s entry into the health area is odd certainly, and impressive. And we’re simply getting our minds wrapped round it. 

The band itself appears loads like a screenless Fitbit tracker, however with just a few totally different components: It has temperature sensing, very similar to Fitbit’s latest smartwatch, the Fitbit Sense, and a microphone that frequently scans a wearer’s voice to find out emotional tone. Sure, it is loads to soak up. And the service is instantly accessible for early entry. We have not even had an opportunity to strive it out but. 

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The membership half will begin at $65 for the primary six months ($100 as soon as the early entry deal is over) after which $3.99 a month after that. (Worldwide costs aren’t presently accessible, however $65 converts to about £50 or AU$90.) The subscription to Halo consists of the fundamental health band that has one button, no display and tracks your coronary heart charge, steps and temperature. The shortage of display means you will must depend on the cellular app to see all of your knowledge, nevertheless it does much more than simply rely your steps and log your weight. 

A tone-analyzing, Amazon well being band that additionally helps you to scan your physique fats could sound like Black Mirror incarnate, nevertheless it’s additionally opening up some concepts in health that we have by no means seen earlier than.


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Amazon Halo: A health tracker and well being subscription…



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Physique fats evaluation with a smartphone digital camera 

Amazon thinks the idea of weight reduction is flawed, and that physique fats is a significantly better predictor of well being.

Most of us have been conditioned to obsess over our weight. Your entire food regimen business was constructed on it with applications, apps and gadgets that revolve round methods to lose kilos. 

However weight can fluctuate each day primarily based on elements together with humidity, treatment, menstrual cycle and sickness. Plus muscle is extra dense than fats, and a scale cannot inform the distinction between the 2. You possibly can actually work your ass off constructing muscle and burning fats, and never see the numbers on the size go down.

Relatively than counting on weight, Halo focuses on physique fats proportion, which is much less unstable and takes much more time and work to vary. 

The gold customary within the medical world for physique composition evaluation is a DEXA scan (dual-energy absorptiometry), which may value as much as $100 at a lab. The Halo app does all of it utilizing your smartphone digital camera. As soon as you’re taking your images, the app mechanically eliminates every part else within the background, calculates physique fats % primarily based on physique indicators, after which creates a 3D mannequin of your physique, which is each cool and terrifying. The app requires you to put on minimal form-fitting clothes and belief Amazon to take an image of you sporting it. Your entire course of takes seconds. 

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Amazon’s Halo app makes a 3D render of your physique to investigate physique fats, whereas the health band retains tabs on sleep and exercise. 


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In case you’re feeling uncomfortable, that is not stunning: The thought of body-scanning with a digital camera is already an ungainly proposition. Amazon doing this on a well being platform makes it really feel extra so. The pattern body-scan photographs Amazon confirmed me look very private — not essentially one thing I would ever need anybody else to see.

That is why Amazon guarantees that the completed physique scans keep in your cellphone and will not be shared with anyone, together with the corporate, except you choose into that. Based on Amazon, “the pictures are processed within the cloud, however encrypted in transit and processed inside seconds, after which they’re mechanically deleted from Amazon’s techniques and databases. All scan photographs are absolutely deleted inside 12 hours. The scan photographs aren’t considered by anybody at Amazon and are not used for machine studying optimizations.”

Watch that tone! 

Halo additionally affords a Tone evaluation, which has nothing to do with physique tone, however somewhat analyzes the nuances of your voice to color an image of the way you sound to others. It may let you recognize once you’ve sounded out of line, weirdly sufficient. 

The health band has two built-in mics to seize audio and it listens for emotional cues. The corporate says it isn’t meant to investigate the content material of your dialog, simply the tone of your supply. It takes periodic samples of your speech all through the day in case you choose in to the characteristic. You allow the microphones by tapping the aspect button and you may know when the mic is off when a pink LED lights up on the band. 

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The voice scanning pulls out the wearer’s particular voice in conversations and delivers evaluation with associated emotional-tone phrases (like “pleased,” or “involved” within the Halo app). The thought, in accordance with Amazon, is to assist information you to ship higher tones of voice and talking types, like a vocal type of good posture. It is not meant as a type of psychological evaluation, nevertheless it appears awfully laborious to attract the road on an idea like this. 

Amazon’s been exploring the thought of emotional tone-sensing since no less than 2018, however that is the primary time it is approached the thought in any machine. And in accordance with Amazon, the Tone characteristic is simply accessible on the Halo band for now. It is going to be restricted to the band’s microphone, however Amazon sounds open to exploring the thought on different gadgets, relying on how the early entry response goes from first-wave wearers. It is a very odd factor to placed on a health band, and we do not know what that is like to make use of but.

Amazon guarantees that Tone voice samples are encrypted and saved solely on a wearer’s cellphone (shared from the band through Bluetooth with the encrypted key), are deleted after evaluation and will not be shared to the cloud or used to construct machine-learning fashions.

Sleep evaluation with temperature monitoring

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The sleep evaluation features a physique temperature to detect variations that will affect sleep. 


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The app supplies a complete sleep evaluation with a breakdown of the totally different levels of sleep and general sleep rating, very similar to different health trackers. It additionally goes past the fundamentals by conserving monitor of your general physique temperature throughout sleep and making a baseline for every individual. It then charts your common temperature every night time relative to your baseline that can assist you determine variations that might have an effect on your well being and the standard of your sleep. 

The Halo band will not present a selected physique temperature, just like the best way different temperature wearable gadgets just like the Oura Ring already work.

Temperature has change into a trending wearable metric within the COVID-19 period: The Oura Ring has one and Fitbit’s latest Sense watch has one too. Amazon’s Halo staff is pursuing analysis for COVID-19 symptom detection on its wearables, very similar to different well being wearable firms, however no particular research or plans have been laid out but.

Exercise monitoring: Every week at a look 

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The exercise app relies on a weekly level system. 


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Halo additionally does fundamental health monitoring primarily based on the knowledge from the band. It may mechanically monitor walks and runs, however you will have to enter the app and tag some other exercises manually. 

It rewards you for any sort of motion or exercise, however provides extra factors for extra intense exercises and subtracts factors for sedentary time. And it would not preserve a each day tally of your exercise, your rating relies on the factors you accrued throughout your entire week. Your entire image of train, sedentary time and lively time is mixed into one tally.

Amazon’s sleep and exercise scores and different AI instruments would require an Amazon Halo subscription; in any other case, the band will default to extra fundamental monitoring knowledge. Very like Fitbit and its Premium service, this appears to be persevering with a pattern of health gadgets that anticipate a subscription mannequin as a part of the bundle.

Numerous labs and companions, however no Google or Apple integration

A Labs part of Amazon Halo appears just like what’s on Fitbit’s Premium service, with a variety of multiweek well being and health targets to choose into, and companions lined up from OrangeTheory to Weight Watchers. Amazon guarantees these challenges are scientifically vetted, nevertheless it additionally feels like these challenges will preserve being added to over time. 

However no less than at launch, Halo won’t tie in to Apple’s HealthKit or Google’s Match App which places it at a drawback with people who find themselves already deeply invested in both for well being monitoring. Amazon is leaning on Weight Watchers, John Hancock Vitality wellness program, and some others that can be capable to hook into Amazon Halo well being knowledge.

The looming privateness query

There’s a variety of course of by way of options, and whereas some appear fascinating and progressive, the largest barrier to entry is privateness. Sharing any type of well being knowledge (not to mention unflattering seminudes) requires next-level belief, and also you may not be ready to provide Amazon that belief. The corporate would not precisely have essentially the most pristine monitor document relating to conserving consumer knowledge non-public. Alexa-enabled gadgets have been within the scorching seat for storing non-public conversations “for machine studying functions.” And Amazon’s Ring doorbell has had a collection of privateness dust-ups. 

Halo places privateness in your palms by permitting you to choose out of information sharing with Amazon and third-party apps in addition to disable the microphone on the band, nevertheless it’s nonetheless going to be an uphill battle. That’s except its options show to be earth-shattering and definitely worth the privateness danger, which stays to be seen.

Amazon is late on arrival

The shortage of connection to Apple or Google is telling. Amazon’s making a play within the well being and health knowledge area, and with Google, Fitbit and Apple already deep in, it is a huge query as to how Amazon will make waves. Or, the place Amazon Halo will go subsequent. It is a platform as a lot as a wearable, and it feels like Halo’s early-access experiment may be the tip of the iceberg.



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