A supplier of the scratch-resistant material has upped output, says a researcher, causing some to predict a bigger iPhone.
GT's filing, which sends company's stock tumbling about 90 percent, surprises the market and suggests a breakdown in its relationship with Apple.
CNET takes a look at the pros and cons of the superhard material, and why practical constraints kept it from appearing in Apple's latest smartphones.
A sapphire screen isn't in the cards, claims analyst Ming-Chi Kuo, but a larger capacity and other surprises await.
The Chinese handset maker gives its 5-inch Ascend P7 a sapphire display which will make it more resistant to scratches.
Apple may test the waters of a sapphire-screened phone by limiting the tough but pricey material to a single version of the next iPhone this year, claims analyst Gene Munster.
A sapphire screen could brighten the prospects of Huawei's flagship P7 in its competition with Apple and with rival Android brands.
Debate has surfaced regarding if and when Apple will outfit its new iPhone with the uber-hard substance. JP Morgan's Rod Hall, for one, doesn't see it in the immediate cards.
With its 4.5-inch sapphire screen, quad-core processor, and 8-megapixel camera, the rugged and water resistant Brigadier can take whatever you can throw at it.
Low production yields of the tough but pricey material means it won't surface on the next iPhone in time for a September launch, Trendforce analysts conclude.