Strange enough, the Grand S II Dual runs the slightly older Android 4.2.2 Jelly Bean, while the regular S II* comes with Android 4.3 out of the box. Jelly Bean versions aside, the S II Dual appears to be similar to its single SIM sibling, featuring a 5.5 inch display with 1080 x 1920 pixels (401ppi), 13MP rear camera with LED flash, 2MP front-facing camera, quad-core Qualcomm Snapdragon 800 processor, 2GB of RAM, 16GB of expandable internal memory, and a 3,000 mAh battery.
Since dual SIM handsets are not really popular in the US, we wouldn’t bet our lunch money on a Grand S II Dual launch Stateside. Instead, the smartphone could be released in Europe at some point (in addition to being introduced in China, of course).
As for the single SIM Grand S II - which, by the way, has LTE connectivity and a new voice recognition feature à la Moto X - this will probably be sold in the US in the near future. Or at least that’s what the very American promo video embedded below is leading us to believe.
* - yes, it’s a bit weird to call this handset S II when Samsung also has an S II in its Galaxy line, but it’s ZTE’s fault, not ours.
source: CNMO (translated) via Blog of Mobile (translated)