Meta exec calls Apple Watch Ultra 'infuriating' because of accidental shutoffs

• Andrew Bosworth, Meta's CTO, shared his thoughts on the Apple Watch Ultra during his Instagram Q&A.
• The exec, who goes by Boz, said he's frustrated at how the watch keeps shutting off mid-workout.

A Meta executive has some qualms with the Apple Watch Ultra, the iPhone maker's most advanced smart watch to-date.

Andrew Bosworth, the chief technology officer of Meta, was asked to share his thoughts on Apple's smart watch during a Q&A he hosted on his Instagram. Launched to the public last September, Apple's $799 watch is engineered to track a user's workouts by collecting data on things like heart rate zones and running form.

Bosworth said he was looking forward to sporting his new watch, but was frustrated by what he believes is one major issue: It randomly shuts off while he's pumping iron, he said.

"I have giant wrists, so I was excited when large sizes came out, and it's all fun and good," Bosworth said during the Q&A. "However, I can't stand when I do a workout, it constantly shuts off in the middle of the workout."

Bosworth, in part, blames himself for not being able to secure the watch on his wrist, but ultimately criticized Apple for what he said was the watch's faulty design.

"It doesn't matter how much I ratchet it tight, I can't change it. It's infuriating." Apple didn't immediately respond to Insider's request for comment on Bosworth's complaints.

Bosworth's frustrations with the accidental turnoffs may be, in part, because of the watch's size.

In a CNN review of the Ultra, Christopher Allbritton called the watch "oversized" and "chunky," which he said could be a drawback for users with smaller wrists looking to collect accurate measurements on their workouts.

"Smaller wrists have less area for the watch's sensors to work with, so you're apt to get less accurate measurements," Allbritton wrote.

Other users echoed similar thoughts about the Ultra's size. Insider's Antonio Villas-Boas tested the watch for several weeks and noted that "the Ultra's chunkier design" — which he said is significantly bigger than older versions of the Apple Watch — could potentially "be a deal-breaker" as there are no smaller sizes of the watch available.

While the reviewers agree that the Ultra doesn't feel as big as it looks, Victoria Song, who tested the watch, wrote in The Verge that the Ultra may not even be wearable for users with small wrists.

"For people with extremely petite wrists (under 130mm around), the Ultra just may not be physically possible — and even some folks with larger wrists don't want a huge, honking watch," Song wrote.

As for Bosworth, the size of the watch may be a dealbreaker.

"It's actually a product that I have that infuriates me more than almost any other," he said.