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Zac Hall

apollozac

Zac Hall is a Senior Editor, covering Apple, apps, and AI. His work is regularly featured by Techmeme.

He joined 9to5Mac in 2013. He later served as Lead Editor from 2016 through 2020, before creating the Space Explored website.

In 2015, Zac began co-hosting 9to5Mac Happy Hour, establishing the format of the site’s premier podcast, which he hosted for eight years.

In 2018, he created 9to5Mac Daily, providing audio recaps of Apple and technology news each weekday. He also hosted multiple seasons of the 9to5Mac Watch Time podcast, a health and fitness-focused interview series.

Zac is based in the lovely Gulf Coast town of Ocean Springs, MS, where he lives with his brilliant kids and Nova, his loyal Cavachon rescue.

Contact: zac@9to5mac.com

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Affordable iPhone accessories for CarPlay worth trying

CarPlay can make any vehicle feel significantly more comfortable and family. Still, the experience is not always perfect out of the box.

Some cars still require a wired connection, others lack CarPlay entirely, and what about keeping your iPhone charged and cooled on long trips?

Fortunately, improving those areas doesn’t require a big investment. These affordable accessories cover everything from wireless CarPlay and MagSafe charging to cable management and complete displays for older vehicles.

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OpenAI releasing major upgrade to ChatGPT and Codex with GPT-6 Astra, details here

Update: A day later, GPT-6 Astra is rolling out to Business and Pro customers on the $100/month or $200/month plan. This follows other new model releases before Plus customers on the $20/month plan gain access.

Update #2: A few hours later, Plus users with the $20/month subscription now have Astra access as well.


It’s been just over a year since OpenAI released the first GPT-5 models for ChatGPT. Now it’s time for GPT-6 Astra to upgrade ChatGPT and Codex capabilities. Details below.

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We need to talk about Siri AI for Apple Watch

Siri AI on Apple Watch arrived two cycles late for watchOS 27 beta this summer. I had high hopes for how new Siri could transform Apple Watch into an AI wearable.

What actually happened in July and August is that Siri has been remarkably unusable in watchOS 27 beta. Like “hold off on updating” bad.

This week, I half-expected Apple to remove “Siri AI” from watchOS 27 beta 8 and revert to the previous version of Siri. Instead, I think Siri AI on Apple Watch actually got good?

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iOS 27 basically turns your iPhone and AirPods into an Apple Watch at the gym

GymKit has been one of Apple Watch’s smartest fitness features since it launched in 2017. Tap your watch to compatible gym equipment, and Apple Watch shares your heart rate while the machine sends back metrics like distance, incline, pace, and calories.

With iOS 27, Apple is expanding that idea beyond Apple Watch. I tested the new GymKit on iPhone and AirPods Pro 3 experience with a GymKit-compatible treadmill. It basically gives you the Apple Watch GymKit workout tracking experience, just without the watch. This could be useful in a lot of scenarios.

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How I’m using Codex and ChatGPT on my Mac

9to5Mac is brought to you by Memoket: The Memoket Gem is an 11g AI wearable that slots beside your Apple Watch in a co-wear band. Press once to capture a conversation, and Gem connects it to what you discussed weeks ago — surfacing the earlier thread with a source link. From $179, shipping August 2026.


In 2023, early adopters were just getting to know ChatGPT and AI chatbot tech. Three years later, OpenAI’s Codex agent, now part of the ChatGPT desktop app, has brought about a similar season of learning. Here’s how I’m using ChatGPT, Codex, and more on my Mac.

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