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

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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 house is odd certainly, and bold. And we’re simply getting our minds wrapped round it. 

The band itself appears to be like quite a bit like a screenless Fitbit tracker, however with a number of totally different parts: 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 quite a bit to absorb. And the service is straight away accessible for early entry. We’ve not even had an opportunity to strive it out but. 

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 price, steps and temperature. The shortage of display means you may must depend on the cell app to see all of your knowledge, however it does much more than simply rely your steps and log your weight. 

A tone-analyzing, Amazon well being band that additionally permits you to scan your physique fats could sound like Black Mirror incarnate, however 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…


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 plan trade was constructed on it with packages, apps and units that revolve round methods to lose kilos. 

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

Reasonably than counting on weight, Halo focuses on physique fats proportion, which is much less risky and takes much more time and work to alter. 

The gold normal within the medical world for physique composition evaluation is a DEXA scan (dual-energy absorptiometry), which may price 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 pictures, the app mechanically eliminates the whole lot 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 carrying it. Your entire course of takes seconds. 


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. 


In case you’re feeling uncomfortable, that is not shocking: The concept 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 decide into that. In response to 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 methods and databases. All scan photographs are totally 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 provides 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 if 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 supposed 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 the event you decide in to the function. You allow the microphones by tapping the facet button and you may know when the mic is off when a crimson LED lights up on the band. 



The voice scanning pulls out the wearer’s particular voice in conversations and delivers evaluation with associated emotional-tone phrases (like “completely happy,” or “involved” within the Halo app). The concept, 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 supposed as a type of psychological evaluation, however it appears awfully laborious to attract the road on an idea like this. 

Amazon’s been exploring the concept of emotional tone-sensing since at the very least 2018, however that is the primary time it is approached the concept in any machine. And in accordance with Amazon, the Tone function is barely 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 concept on different units, 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 don’t 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 by way of 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


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


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 retaining monitor of your general physique temperature throughout sleep and making a baseline for every individual. It then charts your common temperature every evening relative to your baseline that will help you determine variations that would 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 way in which different temperature wearable units 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 group is pursuing analysis for COVID-19 symptom detection on its wearables, very similar to different well being wearable corporations, however no particular research or plans have been laid out but.

Exercise monitoring: Per week at a look 


The exercise app relies on a weekly level system. 


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

It rewards you for any kind of motion or exercise, however offers extra factors for extra intense exercises and subtracts factors for sedentary time. And it would not maintain a every day tally of your exercise, your rating relies on the factors you accrued throughout the whole 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 like to be persevering with a pattern of health units 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 to be like just like what’s on Fitbit’s Premium service, with plenty of multiweek well being and health targets to decide into, and companions lined up from OrangeTheory to Weight Watchers. Amazon guarantees these challenges are scientifically vetted, however it additionally seems like these challenges will maintain being added to over time. 

However at the very least 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 may have the ability to hook into Amazon Halo well being knowledge.

The looming privateness query

There’s plenty of course of when it comes to options, and whereas some appear fascinating and modern, 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 won’t be ready to offer Amazon that belief. The corporate would not precisely have probably the most pristine monitor document relating to retaining consumer knowledge non-public. Alexa-enabled units have been within the scorching seat for storing non-public conversations “for machine studying functions.” And Amazon’s Ring doorbell has had a sequence of privateness dust-ups. 

Halo places privateness in your arms by permitting you to decide out of information sharing with Amazon and third-party apps in addition to disable the microphone on the band, however it’s nonetheless going to be an uphill battle. That’s except its options show to be earth-shattering and well 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 house, 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 seems like Halo’s early-access experiment may be the tip of the iceberg.

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