The Lenovo S920 offers a 5.3 inch display with a thin bezel, and is powered by a quad-core MediaTek MT6589 processor. The device supports dual SIM capabilities and will be powered by a 2250mAh battery. And guess what? Android 4.2 is installed out of the box.
As we alluded to earlier, not much is known about the Lenovo S820, although it is said to be made for women, and will have the same quad-core MediaTek processor that is running the show on the S920. Both models are being targeted at buyers of mid-range handsets, so don't expect to see a 1080p display on either unit. For that crowd, a 720p resolution panel does just fine.
source: MyDrivers (translated) via UnwiredView