GT Advanced Bankruptcy Unlikely to Affect Apple Watch, But Sapphire for Future iPhones in Doubt

A new report from KGI Securities' Ming-Chi Kuo suggests that Apple's sapphire partner GT Advanced Technologies' recent filing for Chapter 11 bankruptcy protection will not affect its upcoming Apple Watch. However, he cautions that it does raise concerns about the possibility of future iPhones using sapphire displays.

watchosappexamples

Bankruptcy has no impact on Apple Watch. As the Apple Watch sapphire cover lens uses an ingot of less than 6-inches, and as drop-test requirements aren’t so stringent as those of iPhone, general ingot manufacturing processes such as KY suffice for Apple Watch. This is why there are abundant sapphire ingot suppliers to choose from for Apple Watch. According to our survey, aside from GTAT, other Apple Watch sapphire ingot suppliers are Hansol (KR) and Harbin Aurora Optoelectronics (CN). We therefore don’t think GTAT’s bankruptcy will affect sapphire ingot supply to Apple Watch.

... but it raises uncertainties on iPhone touch panel use of sapphire cover lens.

Kuo suggests that GT Advanced's ASF (advanced sapphire furnace) sapphire ingot isn't the only one it's considering to use for iPhone displays, though it is the company's preference due to the superior drop-test performance of GT Advanced's sapphire. And while Kuo believes that Apple still wants to use sapphire displays for iPhones, the bankruptcy of GT Advanced will likely result in bottlenecks in ASF sapphire production. Other sapphire ingot suppliers are unlikely to benefit, as they do not measure up to Apple's higher drop-test standards.

Apple had been widely expected to include sapphire display covers on some iPhone 6 models, but that development did not arrive. As Kuo notes, Apple still plans to use sapphire displays for Apple Watch, as it uses an ingot less than 6-inches and Apple's standards for drop-tests on the Watch are not as stringent as those for iPhone.

Related Roundup: Apple Watch 10
Buyer's Guide: Apple Watch (Caution)

Popular Stories

iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching in Three Months With These 12 New Features

Saturday June 14, 2025 5:45 pm PDT by
The iPhone 17 Pro and iPhone 17 Pro Max are three months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of June 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14 Pro have a...
apple watch ultra 2 new black

Apple Watch Ultra 3 Finally Coming After Two-Year Hiatus

Monday June 16, 2025 8:45 am PDT by
Apple will finally deliver the Apple Watch Ultra 3 sometime this year, according to analyst Jeff Pu of GF Securities Hong Kong (via @jukanlosreve). The analyst expects both the Apple Watch Series 11 and Apple Watch Ultra 3 to arrive this year (likely alongside the new iPhone 17 lineup, if previous launches are anything to go by), according to his latest product roadmap shared with...
apple watch ultra snow

6 Features Coming to the Apple Watch Ultra 3

Tuesday February 25, 2025 9:00 am PST by
The Apple Watch Ultra 3 is expected to launch later this year, arriving two years after the previous model with a series of improvements. While no noticeable design changes are expected for the third generation since the company tends to stick with the same Apple Watch design through three generations before changing it, there are a series of internal upgrades on the way. By the time the ...
terminal macos tahoe

Apple's Terminal App Gets Colorful Redesign in macOS Tahoe

Monday June 16, 2025 4:12 am PDT by
Apple's Terminal app is getting a visual refresh in macOS Tahoe, and it's the first notable design update since the command-line tool debuted. The updated Terminal will support 24-bit color and Powerline fonts, according to Apple's State of the Platforms presentation at WWDC25. The app will also adopt the new Liquid Glass aesthetic with redesigned themes that align with macOS 26's broader...
Logitech Logo Feature

Logitech Announces Two New Accessories for WWDC

Friday June 13, 2025 7:22 am PDT by
Alongside WWDC this week, Logitech announced notable new accessories for the iPad and Apple Vision Pro. The Logitech Muse is a spatially-tracked stylus developed for use with the Apple Vision Pro. Introduced during the WWDC 2025 keynote address, Muse is intended to support the next generation of spatial computing workflows enabled by visionOS 26. The device incorporates six degrees of...
iPadOS 26 App Windowing

Apple Explains Why iPads Don't Just Run macOS

Friday June 13, 2025 7:46 am PDT by
iPadOS 26 allows iPads to function much more like Macs, with a new app windowing system, a swipe-down menu bar at the top of the screen, and more. However, Apple has stopped short of allowing iPads to run macOS, and it has now explained why. In an interview this week with Swiss tech journalist Rafael Zeier, Apple's software engineering chief Craig Federighi said that iPadOS 26's new Mac-like ...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday June 12, 2025 8:58 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
iOS 26 on Three iPhones

Apple Says iOS 26 Won't Be Available on These iPhone Models

Tuesday June 10, 2025 6:58 am PDT by
Apple this week revealed that iOS 26 is compatible with the iPhone 11 series and newer. That means that iOS 18 is the end of the road for the iPhone XS, iPhone XS Max, and iPhone XR, which were all released in 2018. However, those devices will continue to receive security updates for at least a few more years. iOS 26 is compatible with the following iPhone models: iPhone 16e iPhone...

Top Rated Comments

rdlink Avatar
140 months ago
Geez,

What is all the drama around this filing? It's just a cash flow issue. Chapter 11 only serves to keep your creditors at bay until you get your financial house in order. It's essentially a court supervised negotiation of deferred payment of debt.
Score: 23 Votes (Like | Disagree)
dannyyankou Avatar
140 months ago
Apple Watch = Colossal Failure.

Pretty bold statement considering we don't even know the release date yet.
Score: 18 Votes (Like | Disagree)
Alonso Quijano Avatar
140 months ago
Apple would save them from bankruptcy if they really depended on them for :apple: Watch production
Score: 12 Votes (Like | Disagree)
aaronvan Avatar
140 months ago
Apple Watch = Colossal Failure.
Score: 11 Votes (Like | Disagree)
eastamherstbias Avatar
140 months ago
Apple Watch = Colossal Failure.

Based on nothing. Version 1 is going to have crappy battery life but the fun starts with versions 2/3 as it gets refined.
Score: 10 Votes (Like | Disagree)
V.K. Avatar
140 months ago

He's batting 150% and issuing such bold statements 12 months in advance. Kinda bold, maybe he should try batting against little leaguers before saying stuff like this.

oh please. Kuo is known to get a LOT of stuff right pretty far in advance. let's take his predictions from April 09 (full 5 months before the iphone 6 unveiling).
https://www.macrumors.com/2014/04/09/kgi-iphone6-predictions/
He nailed both the size and the resolution on both models (AFAIK the only person to predict the resolution correctly all the way up to the last moment), got the NFC part right, got RAM and camera details right. and while he turned out to be wrong about sapphire for 6+ screens, given all the recent news about GT it's quite likely that this was actually Apple's plan originally but it didn't work out because GT could not deliver either on quantity or on quality.
Score: 7 Votes (Like | Disagree)