Is this the rear panel of the international version of the Sony Xperia Z1 mini?
The only changes between Sony's full-sized flagship and the mini is the smaller 4.3 inch screen, the lower 720 x 1280 resolution and the lower capacity 2300mAh battery fpund on the bite-sized model. But if you were worried about the battery, don't be. In early tests, the battery on the smaller version of the Xperia Z1 outlasted the full-sized phone and its 3000mAh battery. The Xperia Z1f has already raced to the top of Japan's smartphone sales charts and is being compared to the Apple iPhone 5s.
Just the other day, we told you that Sony's website in China is teasing an event for January 3rd. That could be the unveiling of the international Sony Xperia Z1 mini. With that in mind, and with only a few days before January 3rd, it might not be that unusual to find a picture popping up that is allegedly showing us the rear panel of the Sony Xperia Z1 mini aka the Sony D5503.
We could see the Sony Xperia Z1 mini announced on the 3rd, but unveiled at CES a few days afterward. The Sony D5503 tallied a score around 35,000 on its AnTuTu test making this a potential powerhouse. Also expected at CES is the Sony Xperia Z1S which is now believed to be a refresh version of the Xperia Z1 with a centered earpiece on top of the device, and a few other cosmetic changes.
source: digi-wo.com (translated) via XperiaGuide