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Apple Watch tracking accuracy studied in new analysis

The Apple Watch is pretty accurate — at least for certain metrics. A new University of Mississippi meta-analysis of 56 studies finds the Apple Watch delivers fairly accurate data for heart rate and step counts — but shows a much wider margin of error when it comes to calories burned. In the year 2025, […]

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The Apple Watch is pretty accurate — at least for certain metrics.

A new University of Mississippi meta-analysis of 56 studies finds the Apple Watch delivers fairly accurate data for heart rate and step counts — but shows a much wider margin of error when it comes to calories burned.

In the year 2025, wearable tech is almost startlingly common. If you walk into any gym in the United States, chances are you’re going to see wrists adorned with some kind of fitness tracker or smartwatch.

And it makes sense, too. Whether you’re concerned about your health or just looking to dial in your workouts, wearing an Apple Watch — or any other fitness tracker — seems like an ideal way to do it.

But that begs the question — just how accurate are health trackers like the Apple Watch? That’s the exact question that University of Mississippi researchers set out to answer.

The Apple Watch knows how much you move, not how much you burn

The Ole Miss study analyzed data from 56 studies comparing the Apple Watch data to clinical reference tools. Researchers took factors like age, existing health conditions, device age, and activity into account.

And, as it turns out, the Apple Watch is, well, fairly accurate.

If you’re using yours to track your heart rate or step count, they’re quite accurate. The study found mean absolute percent errors, a standard measure of accuracy, of 4.43% for heart rate and 8.17% for step counts.

Energy, expenditure, on the other hand, was notably less accurate. The study showed that when it came to tracking calories burned, the Apple Watch was inaccurate nearly 28% of the time.

The energy expenditure inaccuracy was observed across all types of users and activities tested, including walking, running, cycling, and mixed-intensity workouts.

The Apple Watch remains a useful tool, not a diagnostic device

So you may be wondering if this means you should throw your Apple Watch into the trash. Obviously, it doesn’t.

University of Mississippi professor Minsoo Kang, who headed the study, still thinks these trackers have a place.

“These devices are great for keeping track of habits and staying motivated, but do not take every number as 100% truth, especially the calories,” he told Eureka Alert. “Think of it as a helpful guide, not a diagnostic tool. It is useful but not perfect.”

While they’re not perfect now, that doesn’t mean they’re not improving over time, either. Newer models of Apple Watch appear to be significantly more accurate than previous iterations.

“While we cannot say every update is a big leap forward, there is a noticeable trend of gradual improvements over time,” Doctoral student Ju-Pil Choe said. “It shows that Apple is refining the technology over time.”

Kang remains optimistic about the future of wearable tech. He hopes that the study can help users make informed decisions about purchasing wearable tech and that it could help inspire fitness tech creators to reexamine where devices fall short.

“By showing where the weaknesses are, we can help developers get real feedback,” he says “They know what needs to be fixed, they can design better sensors or algorithms.”

“Our findings can guide improvements and help make these devices more useful for both everyday users and health care providers.”



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Sports-Themed Grooming Tools : gillette 1

Gillette, the Official Shave of the NFL, is bringing game day excitement to everyday routines with the launch of the GilletteLabs Official NFL Licensed Razors. This new collection pairs Gillette’s most advanced shaving technology with the bold colors and logos of 12 iconic NFL teams, giving fans a personalized way to showcase their loyalty. Each […]

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Gillette, the Official Shave of the NFL, is bringing game day excitement to everyday routines with the launch of the GilletteLabs Official NFL Licensed Razors. This new collection pairs Gillette’s most advanced shaving technology with the bold colors and logos of 12 iconic NFL teams, giving fans a personalized way to showcase their loyalty.

Each razor features GilletteLabs’ signature exfoliating bar and sleek magnetic stand, now reimagined with officially licensed designs from the Chicago Bears, Cincinnati Bengals, Dallas Cowboys, Detroit Lions, Green Bay Packers, Kansas City Chiefs, New England Patriots, Philadelphia Eagles, Pittsburgh Steelers, San Francisco 49ers, Seattle Seahawks, and Tampa Bay Buccaneers.

With this launch, Gillette is furthering its long-standing partnership with the NFL. The GilletteLabs Official NFL Licensed Razors are available for online presale at select retailers and will begin rolling into stores nationwide starting later this month. 

Image Credit: Gillette



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Bob Costas: A Lot of Sports Journalism Has Been “Diminished”

– Advertisement – Legendary broadcaster Bob Costas knows a thing or two about landmark sports moments—and how they were delivered to audiences. But during a recent conversation on Sunday’s Meet The Press, the veteran sportscaster acknowledged that the way fans consume sports has shifted dramatically with the rise of streaming giants and digital media platforms. […]

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– Advertisement –Jim Cutler VoicesoversJim Cutler Voicesovers

Legendary broadcaster Bob Costas knows a thing or two about landmark sports moments—and how they were delivered to audiences. But during a recent conversation on Sunday’s Meet The Press, the veteran sportscaster acknowledged that the way fans consume sports has shifted dramatically with the rise of streaming giants and digital media platforms. Reflecting on how tech companies like Amazon, Apple, and Netflix are reshaping the sports media ecosystem, Costas said, “Sports is coming at people, if they want to access it, from so many different directions.”

He contrasted today’s fragmented media landscape with his own early career experiences at NBC’s “Game of the Week” during the 1980s. “That really was the game of the week,” he said. “Now, if you want to, you can access every game.” That abundance, however, may come at a price. Costas noted that while options have expanded, the emotional gravity of individual events has diminished.

“I think it does diminish it to some extent,” Costas said. “Everything, every sport, every game is accessible. That takes away some of the excitement.”

Costas also voiced concern over the decline in serious sports journalism. Once-heralded programs like Real Sports with Bryant Gumbel and ESPN’s Outside the Lines have either shut down or scaled back.

“A lot of sports coverage that’s not event coverage now is a bunch of people yelling at each other for an hour over a half-dozen different sports stories,” said Costas. “It’s all sound bites and arguments and clickbait stuff. And a lot of the journalism which used to be part of sports has been diminished.”

As network television’s once-dominant role wanes, Costas said it still holds influence but no longer enjoys full primacy. He candidly acknowledged the complex relationship between networks and leagues, noting that broadcasters are both partners and journalists. “It’s the only one I can think of where the buyer has to continually flatter the seller,” he said, adding that he tried to take a “judicious” approach throughout his career.

He also addressed how gambling and social media have influenced fan behavior. “So much of it is transactional now. You’ve got a bet on the game, so you have a different relationship to how that game plays out,” Costas explained. He also observed that digital platforms have created a harsher tone around sports. “There are no misdemeanors, only felonies. You lose a game, the coach should be fired. A guy goes 0-for-4, and he should be traded.”

Despite the changes, Costas remains proud of the era he came up in, calling it a bridge between the classic and modern periods of sports broadcasting. “The games I was involved in, including the Olympics, just landed differently than some things made today,” he said.

Barrett Media produces daily content on the music, news, and sports media industries. To stay updated, sign up for our newsletters and get the latest information delivered straight to your inbox.



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IIT Madras To Launch INR 200 Cr Early Stage Startup Fund

SUMMARY Called the ‘IITM Alumni Fund’, the new fund will focus on pre-Series A and Series A investments, mainly in startups incubated at the institute The fund will operate as an independent legal entity and follow standard VC fund processes. Most of the funding is expected to come from IIT Madras alumni and HNIs Notably, […]

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SUMMARY

Called the ‘IITM Alumni Fund’, the new fund will focus on pre-Series A and Series A investments, mainly in startups incubated at the institute

The fund will operate as an independent legal entity and follow standard VC fund processes. Most of the funding is expected to come from IIT Madras alumni and HNIs

Notably, IIT Madras counts the likes of electric vehicle (EV) maker Ather Energy and AI unicorn Uniphore among its alumni ventures

Indian Institute of Technology (IIT) Madras has said it plans to launch an INR 200 Cr venture capital (VC) fund to back early-stage startups, particularly in the deeptech domain. 

Called the ‘IITM Alumni Fund’, the new fund will focus on startups incubated at the institute that are seeking pre-Series A and Series A investments. The announcement was made at Sangam 2025, IIT Madras’ annual alumni event held in Bengaluru last week.

The fund will operate as an independent legal entity and follow standard VC fund processes. Most of the funding is expected to come from IIT Madras alumni and high-net-worth individuals (HNIs). 

Notably, IIT Madras counts the likes of electric vehicle (EV) maker Ather Energy and AI unicorn Uniphore among its alumni ventures. 

At the time of Ather’s IPO earlier this year, the institution made about INR 1.13 Cr by selling 35,241 shares. 

The current initiative is part of the institute’s push to back promising startups and enable the “next wave of unicorns”. 

“We aim to raise INR 200 Cr in our first fund through alumni contributions. This is an opportunity for our community to back strong startups and grow together. It also supports our vision of launching 100 deeptech startups every year under the Startup Shatam programme,” said IIT Madras director V Kamakoti.

IIT Madras claims to have already incubated over 500 startups, collectively valued at more than INR 50,000 Cr (about $6 Bn). 

Besides the fund, IIT Madras runs an Incubation Cell, which offers funding, advisory, workspaces and connections to incubated startups. 

The institute backs startups in specific areas like sports tech via groups like Pravartak Technologies Foundation and the Centre of Excellence in Sports Science and Analytics (CESSA). It infuses up to INR 5 Cr per startup, usually in exchange for a stake in the company. 





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Xiaomi Smart Band 10 software update introduces new features

Xiaomi is rolling out a new update for the Smart Band 10 (Image source: Xiaomi) Xiaomi is expanding the feature set of a new wearable that hit the global market just a few days ago. Owners of the Xiaomi Band 10 can look forward to new functions, and the general user experience has been improved […]

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Xiaomi is rolling out a new update for the Smart Band 10 (Image source: Xiaomi)
Xiaomi is rolling out a new update for the Smart Band 10 (Image source: Xiaomi)

Xiaomi is expanding the feature set of a new wearable that hit the global market just a few days ago. Owners of the Xiaomi Band 10 can look forward to new functions, and the general user experience has been improved as well.

We’ve already covered the recent launch of the Xiaomi Smart Band 10, as the wearable was released globally just a few days ago and is available via import for US customers from $55 on Aliexpress. As a fitness band, this gadget has some functional as well as hardware limitations, which is why it can’t be compared to more expensive smartwatches that are equipped with a GPS module, for instance.

Nonetheless, Xiaomi has now released a software update with the version number 2.1.71. This update was arguably necessary, as there were probably still some bugs in the previous firmware. However, the range of features has also been expanded. Xiaomi hasn’t published a detailed list of the bug fixes, but the company mentions stability improvements, which should result in a smoother user experience.

Smart Band 10 users can also take advantage of new vibration alarms. The type of vibration can now be customized, much like ringtones. However, it seems that not all notifications can be configured for the time being. For instance, an upcoming appointment notification will still use the standard tone.

Furthermore, Xiaomi is bringing games to the Smart Band 10. These games use arm or wrist movements as input. This motion detection is usually used to turn on the display when raising the wrist or to count steps. However, these motion games don’t seem to be an entirely new or  innovative feature, as they were already supported on the previous Xiaomi Smart Band 9. Lastly, there are no specific details on the rollout schedule, but it’s reasonable to assume that Xiaomi is releasing the update in stages across different regions and markets in order to limit the number of affected users in case of major issues.



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California Declared Daily Fantasy Sports Are Illegal. Now What?

California Declared Daily Fantasy Sports Are Illegal. Now What? Privacy Manager Link 0

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California Declared Daily Fantasy Sports Are Illegal. Now What?


































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Ice-Powered Fitness Classes : The Coolest Class

During a heatwave, the idea of getting even sweatier with a full-on workout can be enough to derail a fitness routine but GymNation is helping fitness enthusiasts in Dubai beat the heat with “The Coolest Class,” an ice-powered fitness experience. The Coolest Class in Dubai provides participants with insulated gloves and hedgear, plus chilled towels […]

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During a heatwave, the idea of getting even sweatier with a full-on workout can be enough to derail a fitness routine but GymNation is helping fitness enthusiasts in Dubai beat the heat with “The Coolest Class,” an ice-powered fitness experience.

The Coolest Class in Dubai provides participants with insulated gloves and hedgear, plus chilled towels to regulate body temperature. During the experience, gym-goers push their limits with activities like Blizzard Sprints (treadmill runs with fans for resistance and cooling,) Frosted Reps (weighted squats with ice-packed vests) and the Polar Push (sled pushes with ice blocks.) There’s also Chill Zone Recovery, featuring an inflammation-reducing ice bath.

Training in the cold isn’t a gimmick; it challenges the mind to become focused and resilient, and conditions the cardiovascular system to perform at its peak.



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