Mark Zuckerberg’s big moment at Meta Connect 2025 turned into a bit of a headache after not one but two live demo glitches disrupted the CEO’s showcase of Meta’s next-generation AI glasses.

On Wednesday, Zuckerberg unveiled the second-generation Ray-Ban Meta smart glasses, a neural wristband, the new Ray-Ban Meta Display glasses with a heads-up display (HUD), and Oakley-branded sports glasses. These AR smart glasses Ray-Ban models are designed to blend everyday style with advanced AI and AR features.

To demonstrate how the technology could work in daily life, he brought food content creator Jack Mancuso on stage, but things didn’t go as planned.

Mancuso asked the glasses how to mix a “Korean-inspired steak sauce” for his sandwich. Instead of guiding him step by step, the Ray-Ban Meta AI glasses jumped ahead: “You’ve already combined the base ingredients, so now grate the pear and gently combine it with the base sauce.” It repeated the same response twice, ignoring Mancuso’s repeated attempts to clarify what he should do first.

Mancuso blamed a “messed-up WiFi” before handing the stage back. The audience gave a supportive cheer. Zuckerberg, trying to lighten the moment, quipped: “The irony of the whole thing is that you spend years making technology and then the WiFi at the day catches you.”

But the WiFi woes weren’t over. During a demo of the new Meta Ray-Ban Display, which combines voice assistance, a camera, and HUD notifications, Zuckerberg attempted to use the neural wristband to accept a video call from Meta CTO Andrew Bosworth. After several failed gestures, Bosworth appeared on stage in person.

“This WiFi is brutal,” Bosworth said, as the audience laughed. Zuckerberg replied: “Yeah, I don’t know. We’ll debug that later. You practice these things like 100 times, and then, you never know what’s going to happen.”

Bosworth added with a wry smile: “I promise you no one is more upset about this than I am, because this is my team that now has to go debug why this didn’t work on the stage.”

Despite the hiccups, Zuckerberg described the Ray-Ban Display as “one of those special moments” for Meta’s wearable journey.

Billed as Meta's most advanced AI glasses, Ray-Ban Display comes with sensor-packed bracelets called neural bands that let people control the eyewear with subtle finger movements, and are priced at $799.

"Our goal is to build great-looking glasses that deliver personal superintelligence and a feeling of presence using realistic holograms," Meta chief executive Mark Zuckerberg said as he showed off new AI glasses at the tech firm's annual developers conference.

"These ideas combined are what we call the metaverse."