Jumping on the big-screen smartphone bandwagon at CES, China's ZTE on Tuesday unveiled a flagship Android phone with a 5-inch full HD display.

The ZTE Grand S is due to launch in China sometime within the next three months, but ZTE said it's in talks with two carriers about selling the phone in the U.S. It's also talking to European carriers, executives said during a CES news conference. See also: ZTE Grand S hands-on review.

The phone is based on the Jelly Bean version of Google's Android operating system and a quad-core 1.7GHz Qualcomm Snapdragon S4 Pro processor. There's a 13-megapixel camera on the back and a 2-megapixel camera on the front.

But technical specs only tell half the story of the phone. What ZTE was really proud of was its physical size. At 6.9 millimeters thick, the phone is one of the thinnest smartphones on the market, and by comparison, the iPhone 5 is 7.6 millimeters. ZTE's device measures 142 millimeters tall by 69 millimeters wide.

ZTE said it plans to introduce additional high-end smartphones during 2013. Prices for the phone, which will come in several colors and storage capacity versions, were not announced.

Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is [email protected]