The models that appear on the site include the Sony D5503, which is believed to be the global version of the Sony Xperia Z1 f available for Docomo customers only. This is the mini version of the Xperia Z1 that has almost all of the same specs as the full-sized model except for the smaller 4.3 screen, the lower 720 x 1280 resolution and a 2300mAh battery, Other than that, the mini version of Sony Xperia Z1 has the same quad-core Qualcomm Snapdragon 800 CPU and the same 20MP rear-facing snapper on the back of the handset.
Other models found on the site include the Sony D6503, Sony D5322, Sony D5503, Sony D2005 and the Sony D2105. A model number of SPG521, also spotted on the Indonesian logistics site, is possibly the rumored Wi-Fi version of the Sony Xperia Z Ultra. The D2105 could be a successor to the Sony Xperia L, which carries the model number of C2105. The SPG 521 might be related to the Sony Xperia Tablet Z. The latter's model number is SPG321.
Finally, some of the the above models have been put through the AnTuTu benchmark test. You can check out the screenshots in the slideshow below. We should point out some interesting notes. There is speculation that the Sony D5303, which scored 30,145 on the test, could be Sony's next 6 inch phablet, powered by a MediaTek MT6592. That is the silicon slinger's true octa-core chip.
Thanks, Anonymous Tipster!
source: XperiaGuide (1), (2)