Sony Xperia Z2 Sirius D6503 has shown up in a 12-minute long hands-on video showing a lot of new features we are going to see in Android 4.4.2 KitKat and Sony's new improved Xperia UI.
From the looks of it, the Xperia Sirius will use the same 20.7 MP camera sensor as the Xperia Z1 but will now be able to capture 4K video and added features like Slo-mo capture, cinemagraphs, scanning documents to JPEG/PDF etc. There are a couple of useful gestures in store too like tap to wake, answer or dial a call but putting it close to your ear and rejects calls by shaking the phone.
The Sony Xperia Sirius is also expected to support some audio related enhancements including high-quality audio through USB, support for noise cancelling headsets and more. Although you can see various features including the glass backcover, Sony has yet to mention anything official about its next flagship device. But that's going to change come MWC 2014.
