Apple Watch Series 12 and Apple Watch Ultra 4: The MacStories Overview

Source: Apple.

Source: Apple.

At today’s Surprise and Shine event, Apple introduced the new Apple Watch Series 12 and Apple Watch Ultra 4. Both models build on the devices’ existing designs, adding new health and fitness features as well as what Apple calls Audio Intelligence. The star of the Apple Watch show that powers those features on both models is the brand-new S11 chip. Let’s dig into the details of what the new chip and improved sensors means to both models.

Apple Watch Series 12

The Series 12 takes a heart reat measurement every five seconds. Source: Apple.

The Series 12 takes a heart reat measurement every five seconds. Source: Apple.

The new Apple Watch Series 12 comes in 42 and 46mm sizes and is equipped with the new S11 chip. Apple says that enables the device to take sixty times the heart rate measurements and 24x HRV readings compared to the Series 11 Watch. More heart rate measurements and HRV readings mean more accurate and meaningful readings; in fact, better than any other wearable on the market, according to Apple. Apple says step tracking is more accurate, too.

The Series 12 has improved sensors, too. There’s a larger, more power-efficient green LED array for measuring your heart rate every five seconds and a Secure Exclave for processing audio privately and securely. On the outside, the Series 12 features Ceramic Shield 2, making it tougher than the Series 11. The case is now IP6X rated for dust and can be used to six meters of depth. Plus, the battery is rated to last 24 hours during normal use and a 15-minute charge will power it sufficiently to last 12 hours.

Read more

Apple’s Surprise and Shine Event: By the Numbers

Apple covered a lot of ground at today’s Surprise and Shine event, and the numbers help put the announcements in perspective.

After every Apple event, we like to collect the notable specs, comparisons, and other stats from the presentation and Apple’s supporting materials (Tech Specs pages and Newsroom posts). This year, I wanted to make this article a little more special than usual, so I did two things: I set up a workflow to collect even more data during the event (a combination of transcription and, later, YouTube summarization), and I’ve created a few interactive widgets explore some of the latest specs and numbers in more detail.

You can find the complete set of numbers below. Enjoy memorizing all of these.

Read more

All the ‘Surprise and Shine’ Release Dates and Features, Visualized

At today’s Surprise and Shine event, Apple announced a lot of dates. Most of the new hardware arrives on September 18, but the brand new iPhone Duo won’t launch until October. Before then, Apple’s next round of major OS updates arrives on September 14.

Here’s a rundown of the preorder, release, and rollout dates. Later today on MacStories, John and I will be sharing detailed overviews of all the major announcements from today, and you can expect our annual OS reviews to be published – as always – next week.

As a bonus, check out the calendar widget we’ve prepared to visualize all of Apple’s release notes. Stay tuned for more of these on MacStories today: we’re going to have some fun with our coverage this year.

Read more

Apple’s Surprise and Shine Event: Replay the Keynote and Product Videos

If you didn’t follow the livestream of today’s Apple Surprise and Shine event, you can replay it on Apple’s Events site or YouTube.

The keynote video can be streamed here and on the Apple TV using the TV app. A high-quality version will also be available through Apple Podcasts as a video and audio podcast. An American Sign Language version of the event keynote is available on the Apple Events page too.

Apple Surprise and Shine Keynote

Product Videos:

You can follow all of our September 2026 Apple event coverage through our September 2026 Apple Event hub or subscribe to the dedicated September 2026 Apple event RSS feed.

Logitech Releases the Developer-Focused MX Keypad for AI Automation

Source: Logitech.

Source: Logitech.

Today, Logitech introduced the MX Keypad. If it looks familiar, that’s because it’s one-half of Logitech’s existing MX Creative Console. However, instead of bundling a 3 x 3 keypad with a dialpad, the MX Keypad is just the keypad for $99.

I reviewed the MX Creative Console in 2024, and I still use it and write about ways to automate tasks with it. It’s an excellent pair of devices, so it’s not surprising that Logitech has adapted the keypad to a new use case.

Keypad, cable, and kickstand. Source: Logitech.

Keypad, cable, and kickstand. Source: Logitech.

The MX Keypad’s hardware is identical to the keypad from the Creative Console. In addition to the keypad itself, it comes with a kickstand you can use to prop it up at an angle and connects via USB-C to your Mac. My MX Creative Console review has more detail about the hardware, along with images and a short video.

I like the MX Creative Console a lot, and according to Logitech, so did software developers looking for ways to automate their AI workflows. While Logitech didn’t expressly say why it dropped the dialpad for the MX Keypad, it makes sense to me having used the MX Creative Console for months. Dialpads are great for timeline-based creative work, but less so for development work. Yes, developers might want to use the dialpad to control screen brightness or volume, but by limiting the MX Keypad to just the keypad, Logitech was able to hit a lower price point, making the device more appealing to a bigger audience.

I’ve been impressed by the number of ways Logitech has opened its devices up to automators who like to tinker, too. Similar to devices like the Stream Deck, Logi Options+ lets you build Smart Actions based on keyboard shortcuts and macros. But there’s more than that. If you’d prefer to let someone else do the automation, Logitech runs a Smart Actions marketplace with plugins tailored to certain apps. For developers there’s also a Logi Actions API for building plugins with access to each Logitech device’s full capabilities.

Source: Logitech.

Source: Logitech.

From a developer standpoint, the combination of automation options means the MX Keypad opens up a variety of possibilities like:

  • launching agents,
  • monitoring agent activity via the device’s dynamically updated keys,
  • triggering saved prompts,
  • activating voice input, and
  • automating many other repetitive tasks.

Logitech is also teaming up with GitHub Copilot as part of the MX Keypad launch, similar to the partnership that was announced with Adobe as part of the MX Creative Console. There’s a Copilot plugin available that adds Copilot controls to the keypad’s keys. Logitech customers can also take advantage of GitHub’s offer for three months of GitHub Copilot Pro+ for free.

Logitech’s MX Keypad is primarily a repackaging of an existing device with a GitHub Copilot deal thrown in to make it a better value. But it’s good to see the company addressing the developer market more directly. Having used the MX Creative Console primarily for automation and development-type work myself, dropping the dialpad from the package to lower the price is a good tradeoff. I use the dial and its other buttons occasionally, but for automation, the keypad is where it’s at, and between Smart Actions and a full plugin SDK you can point your agent at, the MX Keypad is a great choice for automators.

The Logitech MX Keypad is available directly from Logitech and from Amazon.

Designed in California Makes Its Official Debut→

Designed in California, the Apple history podcast from Myke Hurley and Jason Snell, is now live on Relay with two new free episodes, plus more for Kickstarter backers and Relay subscribers.

Over the summer, Myke and Jason ran a successful Kickstarter campaign for the new show, which will be released as topical series. The first series about the Apple II was released over the summer as part of a preview for the Kickstarter campaign.

Now, the first two episodes of Apple’s Mac OS Crisis are out and available to listen to for free. Those episodes will be followed by five more weekly installments. However, if you backed the Kickstarter or if sign up to support the show via Relay’s website, you get all seven episodes of the series immediately.

The latest series is about:

Apple’s Mac OS crisis in the ’90s, leading to the company acquiring NeXT and bringing Steve Jobs back.

Apple’s Mac OS Crisis also features special guest John Siracusa, who knows a thing or two about ’90s Apple. In addition to the audio-only version of Designed in California, the show is available on YouTube.

It’s been great to see this show come together over the summer. I know it’s been a lot of work, which is clear from the depth and quality of the episodes. I fully expect Designed in California to become the definitive podcast for Apple history nerds.

Permalink

Perplexity Introduces ‘Hybrid Compute’ for Computer Agent on Apple Silicon Macs

Source: Perplexity.

Source: Perplexity.

Perplexity has announced hybrid compute for Personal Computer on Apple silicon Macs. Personal Computer already combined cloud-based Computer tasks with access to local files and apps, but its AI processing was primarily cloud-based. Recently, Perplexity also introduced Portable Computer, a local-first version of Computer that can escalate work to the cloud with a user’s permission.

Hybrid compute approaches the problem from a different direction. Tasks start in the cloud but if a new local classifier detects potentially sensitive information, the user is alerted and asked whether they want to route it to a local model, although users also have the option to let the flagged data be used by a frontier cloud-based model. Gemma E4B, Qwen3.6 35B-A3B, and a Perplexity post-trained version of Qwen3.6 35B are available at launch for that local work, with more models to come in the future.

Tasks that don’t require sensitive information are handled in the cloud by frontier models that also orchestrate the cloud and local tasks. Users select the cloud orchestrator and Perplexity chooses the helper frontier models used.

Another key feature is that hybrid compute works with tasks begun from an iPhone or iPad, too. Those devices could already kick off a session, but now they can also run tasks that use sensitive information locally if your Mac is turned on and running Perplexity.

Yesterday, I got a demo of the feature that walked through three scenarios:

  • an attorney researching a legal brief, with sensitive client data on their Mac, allowing them to update it locally,
  • an analyst using web-based data to update a confidential slide deck for a presentation about a company’s financials, and
  • a small business owner kicking off pricing research from her iPhone that was combined with private pricing data for her business that never left her Mac.

I haven’t tried hybrid compute myself yet, but if it works as advertised, it’s a big step forward for Perplexity, and one that a lot of its competitors are also chasing. AI agents are only as good as the tools and data to which they have access. Tool calling has been a big focus over the last year and more, but data privacy is an equally important issue that needs to be solved before more companies, especially those in regulated industries, adopt agentic tools like Personal Computer. It’s good to see Perplexity tackling this head-on.

A Trio of Ternus Tales→

Myke Hurley writing on The Enthusiast covers three themes from John Ternus’ new CEO bio that was updated today on the Apple Leadership page:

Number 2:

John has led much of the company’s focus in areas like reliability and durability, introducing new techniques that have made Apple products remarkably resilient

I would not have predicted this angle being so prominent, so I can only assume it’s something that’s important to Ternus. Ultimately, it’s good for customers too — you want your computers to last. Apple has also made inroads into the repairability of its products, which I feel goes hand in hand with this.

Of the three, this is the most interesting to me. I wouldn’t have expected durability to be so prominent either, but in addition to Apple’s repairability push in recent years that Myke highlights, I think this is Apple telegraphing something about the future of its products.

In a world where memory and storage prices have skyrocketed and show no signs of coming down to Earth anytime soon, durability becomes a differentiator that’s more important than ever. When you combine that with the system-level stability and performance efforts Apple has made across its OSes this year, I expect we’ll be hearing a lot more about the long-term value of Apple’s devices this fall.

Permalink