Kindle Keyboard vs Kindle DX vs Kindle Fire

Features Kindle Keyboard Kindle DX Kindle Fire
Product Image  kindle-keyboard-3G    
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Screen Size 6″ 9.7″ 7″
Display E Ink Pearl E Ink Pearl Vibrant Color IPS
Dimensions 7.5″ x 4.8″ x 0.34″ 10.4″ x 7.2″
x 0.38″
7.5″ x 4.7″
x 0.45″
Weight (ounces) 8.5 and 8.7 for 3G ounces 18.9 ounces 14.6 ounces
Interface Keyboard Keyboard Multi-Touch
Content Millions of
books, newspapers,
magazines, games,
and docs
Millions of
books, newspapers,
magazines, games,
and docs
Millions of
books, newspapers,
magazines, games,
and docs
Storage

4GB on device for
3,500 books

plus free cloud storage for all Amazon content

4GB on device for
3,500 books

plus free cloud storage for all Amazon content

8GB on device for
80 apps plus either
10 movies
or 800 songs
or 6,000 books

plus free cloud storage for all Amazon content

Battery Life 2 months 3 weeks 8 hours reading or 7.5 hours video playback
Battery Recharging Time 4 hrs. 4 hrs. 4 hrs.
Connectivity Wi-Fi or Wi-Fi 3G Wi-Fi 3G  Wi-Fi
Web Browsing  Experimental
browser
 Experimental
browser

Amazon Silk cloud accelerated browser

Email  N/A  N/A  yes
Warranty 1 year limited warranty and service; optional extended warranty for additional year at $40 1 year limited warranty and service; optional extended warranty for additional year at $40 1 year limited warranty and service; optional extended warranty for additional year at $40 
What’s Included  Kindle wireless e-reader, USB 2.0 cable, and a U.S. power adapter (supports 100V-240V) U.S. power adapter (supports 100V-240V), USB 2.0 cable, rechargeable battery Kindle Fire device, U.S. power adapter (supports 100-240V), and Quick Start Guide
Where to Buy Kindle Keyboard at Amazon Kindle DX at Amzaon Kindle Fire at Amazon