Lenovo VIBE Z2 Pro K920 Android 4.4 Quad Core 2.5GHz 6.0 inch Screen 3GB RAM 32GB ROM 4G Cellphone Unlock 2G: GSM: 900/1800/1900MHz, 3G:WCDMA:850/1900/2100MHz, 4G:FDD-LTE:1800/2600MHz QualcommSnapdragon801(MSM8974AC)QuadCore Android4.4 3GB RAM 32GB ROM 6.0 inch TFT screen 2560*1440 piexls, front 5.0 MP+back 13.0 MP Camera Detected over all products before shipping Warranty:one year