The images show an iPhone with simplified Chinese characters on the screen and inscribed into the back of the handset.
Early pictures showed China's "Environmental Protection Use Period" mark. This mark indicates how many years the product is safe from health issues such as hazardous leaks etc. The iPhone pictured was marked as safe for 10 years. These markings have since been blurred out by Sina.
The iPhone in the Sina pictures had China Unicom 3G displayed beside the signal strength meter on its screen. The back of the handset was inscribed with the letters WCDMA (Wideband Code Division Multiple Access), the 3G standard being promoted by China Unicom.
The model number of the iPhone is A1324.