It looks like Sony might already be working on the successor to the Xperia Z (C660X). According to a source based
report by Xperia Blog, Sony is preparing a summer launch for the Xperia C670X, a new Android smartphone. The site also lists out specifications as well as a render of the device.
The phone is expected to sport a 4.8-inch screen featuring a resolution of 1080 X 1920 pixels. It will be powered by the Qualcomm Snapdragon 600 quad-core processor with a clock speed of 1.8GHz and an Adreno 320 graphics chip, and will have 2GB of RAM, and 32GB of internal storage. The phone will sport a 13-megapixel Exmos RS camera and will run Android 4.2 Jelly Bean. The render of the phone indicates that there would be no buttons and that the placement of the earpiece and the front camera as well as the sensors would be similar to that of the Xperia Z. But there's no way to verify the credibility of the render.
A few weeks back, another Xperia device, the Xperia C680 X,
appeared on the HTML5 Test website, that benchmarks a browser's compatibility with the HTML5 standards, revealing that the C6802X runs Android 4.2 and features a resolution of 1080x1920 pixels but the screen-size wasn't clear.
Judging by the leaked specifications, it looks like Sony is building more phones based on the Xperia Z, tweaking processing speed, RAM and/ or battery for new variants.
Meanwhile, the company is set to
launch the Xperia Z in India on 6 March, and has been posting teasers on Facebook, in addition to setting up a countdown timer page for the launch to create buzz around the phone's launch.