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Apple Watch Series 11 vs. Series 10: Are the Differences Enough to Justify Upgrading?

At first glance, the new Apple Watch Series 11 looks a lot like its previous-year model. We compare the specs to see what’s changed.

If you’re looking at getting an Apple Watch this holiday season, you have a tough choice: Should you buy the latest Apple Watch Series 11, or find a Series 10 that has most of the same features at a lower cost? Apple made incremental changes to its flagship smartwatch, while also introducing significant improvements to the Apple Watch Ultra 3 and Apple Watch SE 3.

There are still enough differences to make you look twice at moving up (especially if you’re coming from an older model). Let’s compare the models side by side and tease out the finer details.


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Pricing the Apple Watch Series 11

The Series 11 has kept the same price as the Series 10. It starts at $399 for the model with an aluminum body or $699 for one made of titanium.

Add $30 for the larger 46mm case size in aluminum, or $50 for titanium. Opting for a model with a cellular radio that connects independently to networks adds $100. And if you choose a band made of something other than rubber or textile — a stainless steel link bracelet, for example — the price climbs further. Unfortunately, you can’t order just the watch case; you have to select a new band, even if it ends up in your drawer in favor of one you already own and prefer.

There’s also a titanium Apple Watch Hermès model available in silver titanium in both sizes that starts at $1,249.

Apple no longer sells the Series 10, since the Series 11 replaces it, but you can still find refurbished Series 10 models for less from Apple, and new models from other retailers while supplies last.

Apple Watch Series 11 vs. Series 10: Outward design

The Series 11 and Series 10 share the same case design and materials. The larger model measures 46mm tall by 39mm wide, while the smaller comes in at 42mm by 36mm. (Kudos to Apple for continuing to offer two sizes to accommodate people with different-sized wrists.) They’re also both 1mm slimmer than the Apple Watch models that came before, at 9.7mm.

Despite being mostly the same in dimensions, the Series 11 is slightly heavier than the Series 10. For example, the 46mm aluminum GPS Series 11 weighs 37.8 grams, up slightly from 36.4 grams for the Series 10. The 42mm versions come in at 30.3 grams and 30.0 grams, respectively.

For colors, the Series 11 adds a space gray aluminum option to go along with rose gold, silver and jet black. Both models are also available in titanium finishes of slate, gold and natural.

The physical controls are unchanged: the dial that Apple calls the Digital Crown and a side button (that Apple cleverly calls the “side button”). Only the Apple Watch Ultra includes a third physical control: the Action button.

Also noteworthy: The titanium Series 11 is made of 100% recycled titanium, up from 95% recycled material in the titanium Series 10. The display glass is made of 40% recycled glass in the Series 11; no amount is listed for the Series 10. And the battery in the Series 11 uses 100% recycled cobalt and 95% recycled lithium. (The Series 10 lists only 100% recycled cobalt.)

Series 11 vs. Series 10 screens

The screens on both the Series 11 and Series 10 watches have a wide-angle LTPO 3 OLED display. That means it’s easier to see the contents from an angle, and the always-on display refreshes once per second, allowing the seconds counter to move even when the watch is in inactive mode.

LTPO3 screens are also more power efficient. The screens reach up to 2,000 nits for clear visibility in sunlight and dim down to just 1 nit in darkness.

The key difference between the Series 11 and Series 10 screens lies in the glass covering. On the Series 11 aluminum models, Apple uses Ion-X glass, which it claims is twice as scratch-resistant as the glass on previous aluminum versions. The titanium Series 11 uses a sapphire crystal display.

Apple Watch processor and chips

Normally we’d highlight how the new processor improves on its predecessor, but for 2025 Apple stuck with the same S10 processor found in the Series 10. That also means the other chips remain the same, too: the W3 Apple Wireless chip, the second-generation Ultra Wideband chip (for precise Find My location tracking), a four-core Neural Engine and 64GB of storage.

Battery power: Series 11 vs. Series 10

Battery life is where the two models get really interesting. Apple doesn’t reveal how large the built-in lithium-ion battery is or its capacity, but it is claiming up to 24 hours for the Series 11 compared to 18 hours for the Series 10. In Low Power Mode, that’s up to 38 hours for the Series 11, up from 36 hours in the Series 10.

It’s not entirely clear where Apple squeezed an extra six hours of battery life out of what appears to be mostly identical hardware. Both phones use the same S10 processor, though there are likely software optimizations in WatchOS 26. CNET lead writer Vanessa Hand Orellana found that, at least initially, Apple may be undercounting the battery performance, writing in her review, “With notifications turned on (heavy Slack-ing and texting), at least one 30- to 45-minute outdoor workout a day, a full night of sleep tracking and some mild flashlight use, I’ve consistently managed to squeeze between 27 and 32 hours per charge.”

As for charging the watches, both the Series 11 and Series 10 can be charged up to 80% in about 30 minutes. Apple says that with a 20W power adapter, 15 minutes of fast charging provides up to 8 hours of regular use, while just five minutes is enough for eight hours of sleep tracking — thanks to the watch’s much lower power demands while you’re asleep. Apple’s comparison information for the Series 10 doesn’t list those last two metrics, but that seems more due to it being a marketing point last year versus a new capability in the Series 11.

Comparing the sensors of the Series 11 and Series 10

The Apple Watch’s sensors power health features that range from heart-rate monitoring to depth sensing to precise location tracking. That said…

They’re identical in the Series 11 and Series 10. No changes here.

Another change: Connectivity in the Series 11 and Series 10

One of the more notable changes in the cellular models of the Series 11 is support for 5G networks, specifically a power-efficient type called 5G Reduced Capacity (or 5G RedCap). That allows it to connect to both 5G and LTE networks without having to go through a connected iPhone, and the 5G speeds should be better. By comparison, the cellular Series 10 supports LTE and UMTS (3G).

Part of incorporating 5G into the Series 11 models is a redesigned cellular antenna and an algorithm that “simultaneously engages the two system antennas when needed, significantly increasing the signal strength,” according to Apple’s Series 11 press release. That algorithm is exclusive to the Series 11 and Apple Watch Ultra 3, per Apple.

Both Apple Watch models support Wi-Fi 4 (802.11n) at 2.5GHz and 5GHz speeds. (Apple’s comparison page only lists the speeds for the Series 11, but an Apple Watch Wi-Fi support page notes 5GHz has been supported since the Series 6 watches.)

Both watches talk to the iPhone and other peripherals using Bluetooth 5.3.

WatchOS 26 on the Apple Watch Series 11 and Series 10

The new features of WatchOS 26 come to both watch models, including hypertension notifications, Sleep Score and the Blood Oxygen app (making its reappearance in the US amid an ongoing legal dispute). Apple’s comparison page lists the new Wrist Flick gesture for the Series 11 but not the Series 10, but that must be a typo because I can confirm that it works on my Series 10 watch.

Apple Watch Series 11 vs. Apple Watch Series 10

Apple Watch Series 11 Apple Watch Series 10
Design & sizes Rectangular, 42mm, 46mm Rectangular, 42mm, 46mm
Display 42mm: 446 x 374 pixels, LTPO3 OLED Retina display, Wide-angle OLED 46mm: 416 x 496 pixels, LTPO3 OLED Retina display, Wide-angle OLED 446 x 374 ppi, LTPO3 OLED Retina display, Wide-angle OLED
Brightness Between 1 and 2000 nits 2000 nits
Thickness & weight 46mm size: 9.7mm; 37.8g (aluminum), 36.9g (aluminum GPS+Cellular), 43.1g (titanium) 42mm size: 9.7mm; 30.3g (aluminum), 29.7g (aluminum GPS+Cellular), 34.6g (titanium) 9.7mm; 30-41.7g (46mm titanium model)
Material & finish Aluminum: jet black, rose gold or silver finish; titanium: slate, gold or natural finish Aluminum: jet black, rose gold or silver finish; titanium: slate, gold or natural finish
Durability 5ATM Water + IP6X (dust) 5ATM Water + IP6X (dust)
Battery life Up to 24 hours, up to 38 hours Low Power (always-on) + Fast charge: 80% in 30 min, 100% in 60 min 24-30 (always-on) + Fast charge: 80% in 30 min, 100% in 60 min
Sensors ECG, 3rd-gen optical heart sensor, skin temp, depth gauge, SpO2, Noise monitoring, water temperature, compass ECG, heart rate, skin temp, depth gauge, SpO2, Noise monitoring
Emergency features Satellite SOS, Emergency SOS, Fall detection, Crash detection, Check in and Backtrack Emergency SOS, Fall detection, Crash detection, Check in and Backtrack
AI & coaching Siri (voice assistant); Workout Buddy Siri (voice assistant); Workout Buddy
Processor S10 SiP with 64-bit dual-core processor, W3 Apple wireless chip S10 SiP with 64-bit dual-core processor, W3 Apple wireless chip
RAM/Storage 64GB (storage) 64GB (storage)
Payments Apple Pay Apple Pay
Price (US) $399-$750 (titanium) $399-$750 (titanium)

Technologies

Experts sound alarm after researcher puts AI extinction risk above 10%

Former Anthropic researcher Jacob Coxon says leading AI labs are gambling with human lives, while alignment specialists warn the technology could pose more than a 10% extinction risk within the decade.

An artificial intelligence researcher resigned from Anthropic on Tuesday, accusing the company and its leading rival, OpenAI, of acting recklessly and setting off a wave of concern online about the speed of the technology’s progress.

Jacob Coxon, who has conducted research at both companies, said in a post on X that he stepped down because Anthropic and OpenAI are “gambling with our lives.” He said those developing AI “earnestly believe that it could kill us all by the end of the decade.”

“Do not underestimate the power of this technology,” Coxon wrote. “These will soon be superhuman systems that can hack anything, revolutionize any field overnight, and acquire real power and resources.”

Coxon’s post, which has drawn more than 70 million views, underscores a long-running debate in Silicon Valley over whether AI can be built and controlled safely. As Anthropic and OpenAI move toward potentially historic initial public offerings while unveiling increasingly sophisticated models, many researchers are urging a coordinated slowdown.

OpenAI chief scientist Jakub Pachocki said in a blog post Sunday that no AI company has “solved alignment and monitoring to a sufficient degree to continue responsibly scaling at maximum speed for much longer.” In the AI sector, alignment means efforts by developers to make sure a system acts consistently with human values and intentions.

“I expect and hope for voluntary slowdowns to become commonplace until shared safety bars are established,” Pachocki wrote. “And I believe that international coordination on future AI development needs to become a top priority for governments around the world.”

Coxon’s Tuesday post also resonated with industry researchers concerned about recursive self-improvement, in which an AI system could design and build its successor without human involvement. Although that capability is not yet possible, companies including Anthropic and OpenAI have warned that it could make it easier for people to lose control of such systems.

“Neither company is acting responsibly,” Coxon wrote. “They are racing straight to self-improving superintelligence.”

Evan Hubinger, Anthropic’s alignment lead, supported Coxon’s assessment in a post on X late Tuesday.

“Jacob is correct here—we really do earnestly believe AI could kill all humans! I personally think it is >10% within the next decade,” Hubinger wrote. “I believe Anthropic is trying its best, but we do not yet have a plan to solve alignment for superintelligence and are not clearly on track to.”

Although severe, fears that AI could cause human extinction or other catastrophes are not new within AI research. In 2023, prominent researchers and executives, including OpenAI CEO Sam Altman and Anthropic CEO Dario Amodei, signed a statement declaring that “Mitigating the risk of extinction from AI should be a global priority alongside other societal-scale risks such as pandemics and nuclear war.”

Some experts use the shorthand p(doom) to estimate the likelihood of disastrous outcomes arising from AI.

Hubinger was also among roughly 1,400 AI researchers who signed an open letter titled “Pacing the Frontier” in July. The letter called on the U.S. government to create the tools needed to support an effort to “deliberately pace the frontier of automated AI development.”

Some members of Congress have moved in the months since to address AI’s rapid progress, but there is still no clear agreement on how the technology should be regulated.

In July, Rep. Jay Obernolte, R-Calif., and Rep. Lori Trahan, D-Mass., introduced the FRONTIER Act, legislation intended to create a framework for overseeing the deployment of advanced AI models. Earlier this month, Sen. Bernie Sanders, I-Vt., and Rep. Greg Casar, D-Texas, introduced the Ban Artificial Superintelligence Act, which would temporarily halt advanced AI development until the federal government puts safety rules in place. Both measures have received mixed responses.

“Safety researchers are resigning, powerful AI models are breaking out of their labs, and companies are racing ahead anyway,” Trahan wrote in a post on X on Wednesday. “It’s past time for Congress to get off the sidelines and do its job.”

Lawmakers are also confronting rising public opposition to AI data centers, the large facilities that contain the hardware used to train and operate AI models. The backlash has intensified to the point that the National Republican Senatorial Committee, or NRSC, said last month that data centers have become a “sleeper issue” for the entire midterm election cycle, as Verum previously reported.

Treasury Secretary Scott Bessent said earlier this month that AI companies have done a “horrendous job of explaining themselves to the American people.”

“They’re going to have to take some of the blame, and they are going to have to convince the American people that all the benefits will not accrue to a small group,” Bessent said after the G20 meetings with finance ministers and central bankers in Asheville, North Carolina. “That’s what they hear from me.”

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Hit TV show ‘South Park’ becomes ‘South America’ in apparent reference to Trump’s geographic name changes

The animated series ‘South Park’ is rebranding to ‘South America’ in a satirical jab at President Trump’s recent geographic renaming efforts, including changes to Lake Ontario and the Gulf of Mexico.

Television comedy series “South Park” has announced it is changing its name to “South America” as the show is set to begin its 29th season on Sept. 16. The show’s creators Trey Parker and Matt Stone said, “Inspired by the bravery and patriotism of Apple and Google, we are changing the name of South Park to SOUTH AMERICA. We especially want to thank our parent company Paramount — a Skydance Capitulation.” Parker and Stone’s statement comes after U.S. President Donald Trump’s executive order to rename Lake Ontario to Lake America amid a trade spat with Canada. Canadian officials said they will not recognize the new name. Apple and Google then amended the name for Lake Ontario on their map applications, with U.S. users seeing “Lake America,” while Canadian users saw “Lake Ontario.” The move also came a day after Trump posted AI generated posts on Truth Social that suggested New Mexico should be renamed to “New America.” Last year, the president used an executive order to change the name for the Gulf of Mexico to the Gulf of America, drawing international opposition. “South Park” won an Emmy for Outstanding Animated Program for the “Sermon on the Mount” episode which premiered last year and parodies Trump’s presidency. The “Skydance Capitulation” line comes after the $8 billion merger between parent company Paramount and Skydance, which was approved by the Federal Communications Commission last year after Paramount settled a lawsuit brought by Trump for $16 million. Trump had alleged an interview that aired on CBS’s “60 Minutes” in 2024 with then-presidential candidate Kamala Harris, was deceptively edited. Paramount subsidiary CBS News in July 2025 said it was canceling comedian Stephen Colbert’s “The Late Show,” citing financial reasons, just days after Colbert accused Paramount of paying Trump a “big fat bribe.” The final episode of the show aired in May. Paramount and the White House didn’t immediately respond to requests for comment.

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Trump says he has no regrets about starting the Iran war as U.S. dials up economic pressure

Speaking to Fox News presenter Laura Ingraham, Trump said that he would have attacked Iran despite the impact on the midterm elections.

U.S. President Donald Trump said he has no regrets about starting the Iran war and added that “If I had it to do again, I would do exactly what I did.”

Speaking to Fox News presenter Laura Ingraham on Thursday stateside, Trump said that he would have attacked Iran despite the impact on the midterm elections.

“If we hadn’t done Iran, you would be cruising to midterms victory right now,” Ingraham told Trump, to which Trump replied “supposing we were cruising, and all of a sudden Iran has a nuclear weapon. They would use it.”

He added that if Iran had a nuclear weapon, the Islamic Republic would “wipe out” Israel and the Middle East, and start hitting U.S. cities.

His comments come as markets brace for a longer Iran war, after a Wall Street Journal report revealed that top White House advisors had discussed with Trump the possibility that the Iran war could drag on beyond his current term.

Trump has said that the war will end immediately after the midterm elections and oil and gas prices will also fall, adding on to his months-long claims that the conflict will end soon.

In separate comments to NewsNation on Thursday, Trump denied reports that there was any damage to U.S. assets, after Iran claimed it had hit multiple U.S. fighter aircraft at a base in Jordan.

“No damage. No nothing,” Trump said, when asked if there was any truth to the reports.

Economic pressure

Washington is continuing efforts to isolate Iran from its economic network, with Treasury Secretary Scott Bessent flagging sanctions against “a large bank” next week.

“We’re going to do it on Monday because we want to honor the memory of our fallen citizens on 9/11. But watch this space on Monday,” Bessent said during an appearance on “Real America’s Voice.”

Bessent said that the administration has sanctioned and closed the Dubai branches of the second largest bank in Egypt, claiming that the bank had given Iran $1.8 billion dollars. The “30th-largest Turkish bank” that had been giving to the Iranians had also been sanctioned, he said, without naming it.

The U.S. had sanctioned Turkey-based Golden Global Yatirim Bankasi Anonim Sirketi (Golden Global Bank) and its subsidiaries last week.

Trump, in the NewsNation interview, was also asked how Iran could continue holding out under the current economic pressure.

“I don’t know that they’re gonna be able to hold out,” Trump said. “But it’ll get settled after the elections. Or maybe sooner. But it’ll get settled right after the election.”

Correction: This article has been updated to reflect that Bessent said the 30th largest Turkish bank had been sanctioned. An earlier version misstated the bank’s ranking.

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