Technologies
Your Smartwatch’s Sleep Tracker May Be Sleeping on the Job
Stress sensors are inaccurate and sometimes report the opposite of user experiences, new research finds
If sleep is important to you — and it should be — you might want to think twice before you put a lot of stock in the latest stress charts from your fitness wearable. A recent study from the Netherlands’ Leiden University, published in the Journal of Psychopathology and Clinical Science, has found that when smartwatches and similar devices record readings on stress, fatigue or sleep, they’re frequently getting it wrong.
Researchers studied 800 young adults using the same Garmin Vivosmart 4 smartwatch model. They compared the data the smartwatches produced with the reports that the users created four times per day about how sleepy or stressed they were feeling. Lead author and associate professor Eiko Fried said the correlation between the wearable data and the user-created data was «basically zero.»
A representative for Garmin did not immediately respond to a request for comment.
Stressed or sex? Your watch doesn’t know
So why do wearables like fitness smartwatches get it so wrong? Their sensors are fairly limited in what they can do. Watches like these need to be worn correctly at all times (a loose or tight watch may give poor readings, for example), and they typically use basic information like pulse rate and movement to make guesses about health.
Those guesses don’t always reflect real-world scenarios. A wearable may identify high stress when the real cause of the change was a workout, excitement over good news or sex. There are so many potential alternatives to stress or fatigue that the watches in the study never really got it right — and the devices sometimes guessed the complete opposite emotional state from what users recorded.
The Dutch study did note that Garmin’s Body Battery readings, which specifically measure physical fatigue, were more reliable than stress indicators, but still inaccurate. And sleep sensing performed the best of them all, with Garmin watches showing a two-thirds chance of noting the differences between a good night’s sleep and a bad one.
It’s also worth noting that smartwatch sensors can become more accurate as technology improves. It would be interesting to run a similar study with the newer Garmin Vivosmart 5 to see if anything has improved, as well as see if other models like the latest versions of the Apple Watch have similar accuracy results.
Technologies
I Got Up Close and Personal With Boston Dynamics’ New Atlas Robot
Before Atlas takes its first steps into the world of work later this year, I found myself face-to-face with CES 2026’s most talked-about robot on the show floor.
When I say that I went hands-on with the new Boston Dynamics Atlas robot, I mean that I actually held hands with it. This humanoid robot, which CNET just awarded the Best Robot of CES Award, is one of the most advanced in the world, and I couldn’t pass up the opportunity to get up close and personal with it.
This product version of the robot, which is set to be shipped to Hyundai factories imminently to start working, has been the talk of CES this year. The specific Atlas robot I encountered was a static model that wasn’t turned on or fully operational. Our interactions were, therefore, sadly one-sided. Still, I ran my hands over its soft-touch plastic shell and gently prodded at its finger joints, wondering how it would feel if they gripped me back.
People tend to have varying feelings about humanoid robots — understandable given that they are built to some degree in our image, while also usually being stronger than us, with «brains» that we don’t fully understand. Atlas definitely evokes contradictory emotions for me — even more so when I stood face-to-face with it.
I’m in awe of the engineering, a little fearful of its capabilities, hesitant about what it could mean for the future of humanity and charmed by its design and styling. The periwinkle blue iteration of Atlas that I met on the show floor at CES 2026 almost bears more resemblance to a Dyson product than it does the industrial robots that defined Boston Dynamics’ early days, when it was best known for its work with DARPA.
«There’s a lot of really specific things about this robot that probably look a little weird,» said Zachary Jackowski, Boston Dynamics VP and general manager of Atlas. He pointed to the legs, which he described as «like nothing anyone else was doing.»
Atlas’ thighs are narrow set and in line with the torso, while the calves are wider set, attached to their upper counterparts with a circular joint. This robot is, in fact, all subtle curves and soft lines. There are no harsh edges or stark angles.
During a year when CES has been flooded with humanoid robots, Atlas definitely does stand out due to its design. It appears both less classically human and less industrial than some of its peers, while also lacking the often intimidating, featureless faces they tend to exhibit. Instead, it has two low-set cameras resembling eyes placed where you’d usually expect a mouth to be. Its face is a perfect flat circle, defined by an LED halo that gives it a somewhat Pixar lamp effect.
I asked Jackowski why Boston Dynamics decided to skew so relatively unhuman with this version of its humanoid. «Well, it’s not a human,» he said. «It projects the wrong first impression about a robot to have it pretend to be something that it’s not.»
Particularly in the early days of humanoids, he added, robots won’t have anything like human-like intelligence. People should look at it and see it for what it is — a tool for performing tasks safely and efficiently.
In fact, most of the design decisions were made to keep Atlas as simple, scalable and safe as possible, Jackowski said. I remark that there’s some irony in thinking of a humanoid robot as simple, given the complexity of the technology and development process to bring Atlas to life.
The key to making it simple, Jackowski said, is having a strong enough grasp of the technology to «accomplish the complex thing of building a humanoid robot,» but then being able to take it apart and understand that you can use fewer computers and actuators in it while achieving the same results.
And it’s essential to Boston Dynamics that Atlas is perceived as simple. After all, it’s a general-purpose humanoid, which might eventually be sent far and wide to fulfil all manner of roles. Jackowski calls it the «ultimate generalist.»
Simplicity aside, there are aspects of Atlas that Jackowski believes set it apart from other humanoids at the show. «The repairability of this robot is crazy good,» he said. «The runtime is crazy good. The strength is unlike anything.»
From working in Hyundai’s manufacturing plants, Atlas’s job trajectory is to eventually graduate to many of the same industrial environments where Boston Dynamics’ Spot robot works, before moving to bussing tables in the service industry and eventually into the home. The robot will evolve between now and then, Jackowski said. However, this could be an early glimpse of the type of humanoid that will eventually be our housemate.
That’s some way away, though, which is probably for the best. As I gaze up at Atlas, which I’d guess is around the same height as my husband, my feeling is that, however impressive Atlas is, I’m still not ready for it to move in.
Technologies
This Star Wars Dartboard Has a Secret That Will Stop You From Using the Force to Win
This cool dartboard has cameras to track your score and keep you honest
Right in the middle of the high-tech show floor at CES 2026 sits a pub called the Bull and Barrel with some of the coolest dartboards I’ve seen. Target Darts was showcasing its collaboration with both Star Wars and Xbox. Darts may not be for everyone, but I love «shooting some arrows» in my basement with the family. I also love anything Star Wars themed, so these tick a lot of boxes.
The basic Star Wars set comes with a branded board and wall protector that resembles the cockpit of the Millennium Falcon and costs $200. The board is of very high quality, with a tight-knit sisal fiber face, and the protector is thick enough to keep stray shots out of your drywall. The graphics are cool too, with nods to the original Falcon and even have the gold dice hanging above.
The big tech twist to this board, though, is the Omni light ring around the outside. It uses four cameras to track your dart’s position, then sends that info to an app that keeps score. The scoreboard is crisp and clear and uses the voice of legendary darts announcer John McDonald to narrate your game. It’s pretty great to hear his voice announce my terrible scores.
The Omni also allows you to connect with other players worldwide via shared scoreboards. I love the idea of my dad having a board at his house or playing a match with me at my house. It adds a feeling of community to home darts that you don’t normally get outside a pub or bar.
The Omni is a much more expensive proposition than the Star Wars set, coming in at $650, but if you’re serious about the game and a Star Wars fan, it looks to be a great investment.
Technologies
TikTok and FIFA Team Up for World Cup 2026 Coverage
A new team-up aims to make this summer’s tournament more accessible for fans.
If you hadn’t already planned on swiping on TikTok videos of the 2026 FIFA World Cup, a new partnership between the social media platform and tournament organizer FIFA could motivate you to start stretching out your thumbs.
As the soccer tournament nears — it will take place from June 11 to July 19 and span 16 host cities in Canada, Mexico and the US — TikTok will become FIFA’s first «preferred platform.» According to a FIFA statement on Thursday, this entails TikTok providing more coverage of the World Cup, including original content and even livestreaming of some portions of matches.
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You can use the FIFA World Cup 2026 hub on TikTok to find content, match tickets and viewing information, as well as participation incentives such as custom stickers and filters.
In the US, World Cup games will air live across Fox and FS1. If you don’t have cable, you can get a live TV streaming service, such as YouTube TV, which includes those channels. Additionally, every match will stream live on Fox One and the Fox Sports app.
«FIFA’s goal is to share the exhilaration of the FIFA World Cup 2026 with as many fans as possible,» FIFA Secretary General Mattias Grafström said.
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