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Phone Samsung Galaxy S II, Epic 4G Touch Motorola ROKR E2 Samsung Axle R311 Nokia 6315i Coolpad Quattro 4G
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.5" diag.
5 : 3
? 1.9" diag.
4 : 3
? 4" diag.
5 : 3
Display Resolution & Type 480 x 800 pixels
(~206 ppi)
AMOLED
240 x 320 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~148 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ? 60 Hz
Battery 1,800 mAh ? ? 950 mAh 1,600 mAh
Processor 1.2 GHz Samsung Exynos C210 dual-core ? ? ? ?
RAM ? ? ? ? ?
Storage 16 GB ? raw hardware ? raw hardware ? raw hardware 512 MB
Main Camera 8 megapixel 1 megapixel Yes 1 megapixel 3 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD ? - ? VGA (640 x 480)
Front Camera 2 megapixel - - - Yes
Weight 4.55 oz
(129g)
3.77 oz
(107g)
3.37 oz
(96g)
3.34 oz
(95g)
3.31 oz
(94g)
Dimensions 5.1" x 2.7" x 0.38"
(130 x 69 x 9.6 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
3.54" x 1.77" x 0.77"
(90 x 45 x 19.6 mm)
3.52" x 1.87" x 0.72"
(89 x 47 x 18.3 mm)
4.96" x 2.6" x 0.51"
(126 x 66 x 13 mm)
Form Factor Slab Slab Clamshell Clamshell Slab
Platform / OS Android (proprietary) (proprietary) (proprietary) Android
Network Bands

4G WiMAX: 41

CDMA: 800, 850, 1900

*

GSM: 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

4G LTE: 2, 4

CDMA: 850, 1700, 1900

Data Technology WiMAX EDGE 1xRTT EVDO r0 LTE (Cat 3)
Features 
GPS / Location n/a - Yes Yes n/a
Accessibility
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages n/a Yes Yes Yes n/a
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display - - Yes Yes -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot n/a - - - n/a
USB Yes
Micro-USB
Yes - Yes Yes
Wi-Fi Yes
4 (802.11 a,b,g,n)
- - - Yes
Contacts
Picture ID n/a Yes Yes Yes n/a
Ringer ID n/a Yes Yes Yes n/a
Voice Dialing n/a Yes Yes Yes n/a
Customization
Custom Graphics n/a Yes Yes Yes n/a
Custom Ringtones n/a Yes Yes Yes n/a
Real-Music Ringers n/a - Yes - n/a
Data & Network
Data Tethering n/a Yes Yes Yes n/a
External Antenna Jack n/a - - Yes n/a
WAP / Web Browser n/a Yes Yes Yes n/a
Input
Predictive Text Entry n/a Yes Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - - - Yes
Memory
Memory Card Slot Yes Yes - Yes Yes
Messaging
Email Client n/a Yes - - n/a
Instant Messaging n/a - - - n/a
MMS n/a Yes Yes Yes n/a
Text Messaging Templates n/a Yes Yes Yes n/a
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) Yes Yes - - Yes
Music Player n/a Yes - Yes n/a
Photo & Video
DLNA Yes - - - -
TV Output Yes - - - -
Productivity
Alarm n/a Yes Yes Yes n/a
Calculator n/a Yes Yes Yes n/a
Calendar n/a Yes Yes Yes n/a
To-Do List n/a Yes - - n/a
Voice Memo n/a Yes Yes - n/a
Software
BREW n/a - Yes Yes n/a
Games n/a Yes Yes Yes n/a
Java (J2ME) n/a Yes - - n/a
Voice
Headset Jack (2.5 mm) n/a - - Yes n/a
Speaker Phone Yes Yes Yes Yes Yes
  Samsung Galaxy S II, Epic 4G Touch Motorola ROKR E2 Samsung Axle R311 Nokia 6315i Coolpad Quattro 4G
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Galaxy S II, Epic 4G Touch Motorola ROKR E2 Samsung Axle R311 Nokia 6315i Coolpad Quattro 4G

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