Key Features:

7-inch HDX Touch Display
2.2GHz Quad-core Processor, 2GB RAM
Fire OS 3.0 (Android based)
Mayday Button: One touch access to an Amazon Expert
4 times Faster than 2012 Models
Wi-Fi plus optional 4G LTE
Up to 11 hours Battery Life


General:
Dimensions 186 x 128 x 9.0 mm
Weight: 303 g (Wi-Fi models), 311g (4G LTE + Wi-Fi)
Form: tablet
Colour: Black
Display:

Technology: HDX Touchscreen
Resolution 1920 x 1200 pixels, 323 ppi
Size: 7-inch
Features: Accelerometer, Gyroscope, Reduced-glare
Camera:

Position: Front Facing Camera
Video: 720p HD Video
features: Video Calling like Skype
Internet/data/Connectivity:

GPRS/EDGE (4G LTE + Wi-Fi models)
WCDMA/HSDPA (4G LTE + Wi-Fi models)
HSPA+ (4G LTE + Wi-Fi models)
4G LTE (4G LTE + Wi-Fi models)
Wi-Fi 802.11 a/b/g/n, Dual-band
Wi-Fi WEP, WPA, and WPA2 security using password authentication
Bluetooth support With A2DP
Micro-B USB Port
Memory:

Memory: 2 GB RAM
Built-in Memory: 16 GB, 32 GB, or 64 GB
Memory Card: No support
Cloud Storage: 5GB free Amazon Cloud Drive
messaging:

email
Instant messaging
Push email
Entertainment:

music player:
video player:
Over 20 million songs at Amazon Digital Music Store
Games and Gaming
Navigation:

GPS Navigation (4G LTE + Wi-Fi models)
Location-based services via Wi-Fi
Battery:

Up to 11 hours of reading, surfing the web on Wi-Fi, watching video, or listening to music. Battery charges in 6 hours.
Other features:

Operating System: Fire OS 3.0 OS, a.k.a Mojito (Android based)
Processor: 2.2 GHz Quad-Core Snapdragon 800 Processor
Social Media Support Facebook, Twitter, YouTube
Browser: Silk Browser (Cloud Optimised Browser)
Mayday button: One touch free access to an Amazon Expert
Dolby Digital Plus
Amazon App Store
Netflix, HBO GO, Hulu Plus
over 1.7 million books and magazines with over 180,000 Kindle exclusive
over 120,000 movies and TV shows
Rent Textbooks
Read-to-Me (Text to Speech)
Audiobooks
Dual Stereo Speakers
VPN (Coming Soon)
ActiveSync
Video Streaming
1-click shopping
Accelerometer
Gyroscope
Kindle for Education
Kindle for Kids
Whispersync (for movies, books, games, and voice)
Kindle FreeTime (for parental control)
Kindle for Office
Proximity sensor
3.5mm audio jack
Downloads: Games, video, music, ringtone downloads

http://infolodge.net/blog/blog/2013/10/17/review-kindle-fire-hdx-7-tablet-specs-price-2013-models/