16GB ,  Android (4.4)

 5.5 Inch IPS display with a resolution of 1280 x 720 pixels, pixel density of 267PPI
16GB Internal storage for apps and user data
MicroSD card slot supports cards upto 32GB
Gorilla Glass 3 protection for the display
13 Megapixel Autofocus Camera which is a Sony Exmor R Sensor capable of FullHD Video recording
CyanogenMod OS 11, a custom version of Android 4.4 Kitkat
5 Megapixel Front facing camera for video calls and selfies
Dual SIM support- Micro SIM + Micro SIM
Removable 2500mAh battery

Operating System     Android (4.4)
CPU      1.5 GHz, Qualcomm Snapdragon615, MSM 8939,Octa core.
GPU      550 MHz, Adreno 305
RAM     2GB 
Special     Cyanogen OS 11
 
Camera
Primary               13 MP
Secondary           5 MP
HD Video           1080P
Flash Light         Yes
Auto Focus        Yes
Display    
Size                    5.5 Inches, 12X720 Pixels
Type                    IPS LCD Capacitive Touch
                             Screen 16 M Colors,Corning Gorills Glass3
Pixel Density       267 PPI
Connectivity
Bluetooth           Yes ; v 4.0
2G                   Yes
3G                   Yes
4/G LTE           Yes
WIFI                Yes
USB                micro USB version 2.0
Radio               Yes
NFC                No
Memory
Card Slot            micro SD
Internal              16 GB
External             expandable up to 32 GB  

SIM
SIM Card Type             Micro SIM
SIM Type                     Dual
Network   Type            GSM+GSM  
Battery
Type                       Removable Lithium –Lon 2500 mAh
Stand-By Time       2G:  210 Hours
Talk Time               2G : 8 Hours