Much like my current aversion to smartwatches I’m equally disinterested in the idea of a fitness tracker. As a man of science I do like the idea in principle as anyone looking to better themselves should track as much data as they can to ensure what they’re doing is actually having an effect. However all the devices on market don’t appear to be much more than smart pedometers with nice interfaces something which doesn’t really track the kinds of things I’m looking for (since most of my exercise isn’t aerobic in nature). I don’t discount their value for others but if I was going to invest in one it’d have to do a lot more than just be an accelerometer attached to my wrist.
I may have found one in AIRO, a rather Jony Ive-esque device coming from a new 3 person startup. For the most part it sports the same features as other health trackers, presumably through the same method of an incorporated accelerometer, but its real claim to fame comes from its apparent ability to detect metabolites in your blood, without having to cut yourself to do so. AIRO also claims to be able to detect the quality of the food you’re eating as well which, from what I can tell by looking at their website, seems to be related to the macro-nutrient breakdown. As someone who regularly struggles to get enough calories to support their goals (yeah I’m one of those people, believe me it’s not as great as you might think it is) and really can’t be bothered to use a calorie tracker this is of particular interest to me, something I’d consider plonking down a chunk of change for.
Of course the sceptic in me was instantly roused by the idea that a device could non-invasively determine such things because such technology would be a boon to diabetics, not to mention any research program looking at monitoring caloric intake. Indeed something like this is so far out of left field that most of the mainstream coverage of the device doesn’t go into just how it works, except for referring to the fact that it measures calories and macro-nutrient breakdown based on light. It sounds like a great theory but since there’s no source material provided to show how their method works, nor any validation using standard means like doubly labelled water or even short term experiments with strictly controlled caloric intake.
I was going to leave it at that, and indeed not even write about it since I wanted to see some validation of the idea before I said anything, but then I stumbled across this article from ScienceDaily which links to a German study that has been able to measure blood glucose with infrared light. The function of their device sounds different to the one AIRO purports, instead using the infrared light to penetrate the skin and cause a resonance in the glucose within the bloodstream which their device can then pick up. Their device sounds like it would be anything but wearable however with a “shoebox sized” device planned to be released within the next few years. This doesn’t validate the idea behind AIRO but it does lend some credence to the idea that you’d be able to extract some kind of information about blood metabolites using light pulses.
So I’m definitely intrigued now, possibly to the point of shelling out the requisite $159 to get one delivered when they come out, but I would love to see some validation of the device by the inventors to prove their device can do what they say it can do. It’s not like this would be particularly difficult, hell if they send me a prototype device I’ll happily engage in a tightly controlled caloric diet in order to prove it can measure everything, and it would go a long way to convince the sceptics that what they’ve made really is as good as they say it is. Heck I bet there’s even a couple other startups that’d love to do some testing to prove that their products also work as intended (I’m looking at you, Soylent) and having that kind validation would be extremely valuable for both involved.