Unofficial Rumored Specifications, Device Not Released yet.

2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100
4G Network LTE
SIM Type Micro-SIM

Expected Release Date: Q2, 2013

BODY
Dimensions No Info
Weight No Info

DISPLAY
Type sAMOLED FHD capacitive touchscreen, 16.7M colors
Size  4.99-inches 1080 x 1920 pixels, (441 ppi pixel density)
Multi-touch Support YES
Protection Unbreakable Corining Willow Glass
User Interface TouchWiz UX

SOUND
Alert types Vibration; MP3, WAV ringtones
Loudspeaker Yes
3.5mm jack Yes

MEMORY
Card slot microSD UHS-1, up to 64 GB
Internal 16/32/64 GB storage

RAM  2GB

DATA
GPRS Yes
EDGE Yes
Speed HSDPA 42.2 Mbps; HSUPA 5.76 Mbps, LTE Cat3, 50 Mbps UL; 100 Mbps DL.
WLAN Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot
Bluetooth Yes, v4.0 with A2DP, EDR
NFC Yes
USB Yes, microUSB v2.0 (MHL), USB On-the-go

CAMERA
Primary 13.1 MegaPixels, autofocus, LED flash
Extra Features: Simultaneous HD video and image recording, geo-tagging, touch focus, face and smile detection, image stabilization, HDR
Video Yes, 1080p@30fps
Secondary Camera 2.1 MegaPixels

MAIN FEATURES
OS Android 4.2.1 Jelly Bean
Chipset Exynos 5 Octa
CPU Octa-core 1.4Ghz (8 Cores)  
GPU Mali T-678 (8 Cores)
Sensors Accelerometer, gyro, proximity, compass, barometer
Messaging SMS, MMS, Email, Push Mail, IM, RSS
Browser HTML5
GPS Yes, with A-GPS support and GLONASS
Java Yes, via Java MIDP emulator

COLORS
Titanium Gray, Sapphire Black, Marble White

OTHER FEATURES

- S-Voice natural language commands and dictation
- Smart Stay eye tracking
- Dropbox (50 GB storage)
- S-Pen, S-Note, S-Beam
- Active noise cancellation with dedicated mic
- TV-out with MHL A/V link
- SNS integration
- MP4/DivX/XviD/WMV/H.264/H.263 player
- MP3/WAV/eAAC+/AC3/FLAC player
- Smart Organizer
- Image/video editor
- Document viewer (Word, Excel, PowerPoint, PDF)
- Google Search, Maps, Gmail, YouTube, Calendar, Google Talk, Picasa
- Voice memo/dial/commands
- Predictive text input (Swype)

BATTERY
Standard battery, Li-Ion 4600 mAh
Stand-by No Info
Talk time No Info