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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

Connect with Zac Hall

Apple Watch blood oxygen workaround arrives just in time

apple watch blood oxygen study - ban

With the release of watchOS 11.6.1 and companion iOS 18.6.1, Apple managed to restore blood oxygen readings for U.S. owners of Apple Watch Series 9, Series 10, and Ultra 2.

The method is slightly less convenient, as it shifts processing data and displaying results to the iPhone, but it restores a capability that had been entirely removed since late 2023. The timing works in Apple’s favor.

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iPhone 17 Pro could redefine Apple’s Pro color strategy

After two years of titanium iPhone Pro models and many more years of stainless steel, Apple is rumored to be switching to aluminum for the iPhone 17 Pro. Titanium, instead, will be used on the ultra thin iPhone 17 Air.

That may seem like a step away from premium materials for the Pro model. For anyone bored by variations of gray for Apple’s best iPhones, however, it appears to be good news.

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GPT-5 brings big improvements to Mac vibe coding

My former colleague Parker Ortolani has been experimenting with “vibe coding” for months, building native and web apps by steering large language models with carefully crafted prompts. GPT-4o and Claude helped him get functional prototypes running, but GPT-5 is the first model that delivers the complete experience he’s been waiting for. Here’s how GPT-5 improves on earlier models:

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