ZTE has introduced several tablets, four of which support for GSM voice communication, equipped with NVIDIA’s Tegra 3 quad-core or Qualcomm’s latest S4 dual-core, all will launch in 2Q12. Samsung also showcased three tablets with voice communication capability. Asus demonstrated its PadFone, which uses a dock to transform into a tablet or a notebook.
Here is the Comparison of various Tablets of ZTE Powered by Android
http://broadbandindia.com/images/zte_tablets.jpg and also 4 more models