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Phone Samsung SCH-A990 Samsung Galaxy S II, Epic 4G Touch Samsung SGH-i320 Samsung SCH-U740 Alias
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 4.5" diag.
5 : 3
? ?
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~206 ppi)
AMOLED
320 x 240 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 1,000 mAh 1,800 mAh ? ?
Processor ? 1.2 GHz Samsung Exynos C210 dual-core ? ?
RAM ? ? ? ?
Storage ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera 3 megapixel 8 megapixel 1 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 1080p HD ? ?
Front Camera - 2 megapixel - -
Weight 4.4 oz
(125g)
4.55 oz
(129g)
3.35 oz
(95g)
3.56 oz
(101g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
5.1" x 2.7" x 0.38"
(130 x 69 x 9.6 mm)
4.37" x 2.32" x 0.45"
(111 x 59 x 11.4 mm)
3.84" x 2.04" x 0.63"
(98 x 52 x 16 mm)
Form Factor Clamshell Slab Slab Clamshell
Platform / OS (proprietary) Android Windows Mobile Standard (proprietary)
Network Bands

CDMA: 850, 1900

4G WiMAX: 41

CDMA: 800, 850, 1900

*

GSM: 900, 1800, 1900

CDMA: 850, 1900

Data Technology EVDO r0 WiMAX EDGE EVDO r0
Features 
Flashlight Yes - - -
GPS / Location Yes n/a n/a Yes
Accessibility
Hearing Aid Compatible Yes Yes - Yes
Multiple Languages Yes n/a n/a Yes
TTY/TDD (Digital) 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
Infrared (IR) - - Yes -
Mobile Hotspot - n/a n/a -
USB Yes Yes
Micro-USB
Yes Yes
Wi-Fi - Yes
4 (802.11 a,b,g,n)
- -
Contacts
Picture ID Yes n/a n/a Yes
Ringer ID Yes n/a n/a Yes
Voice Dialing Yes n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Real-Music Ringers Yes n/a n/a -
Data & Network
Data Tethering Yes n/a n/a Yes
WAP / Web Browser Yes n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes Yes
Touch Screen - Yes - -
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client - n/a n/a Yes
EMS / Picture Messaging Yes n/a n/a -
Instant Messaging - n/a n/a Yes
MMS Yes n/a n/a Yes
Text Messaging Templates Yes n/a n/a Yes
Music
Headphone Jack (3.5mm) - Yes - -
Music Player Yes n/a n/a Yes
Stereo Speakers Yes - Yes -
Photo & Video
DLNA - Yes - -
TV Output Yes Yes - -
Productivity
Alarm Yes n/a n/a Yes
Calculator Yes n/a n/a Yes
Calendar Yes n/a n/a Yes
To-Do List - n/a n/a -
Voice Memo Yes n/a n/a Yes
Software
BREW Yes n/a n/a Yes
Games Yes n/a n/a Yes
Java (J2ME) - n/a n/a -
Voice
Speaker Phone Yes Yes Yes Yes
  Samsung SCH-A990 Samsung Galaxy S II, Epic 4G Touch Samsung SGH-i320 Samsung SCH-U740 Alias
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A990 Samsung Galaxy S II, Epic 4G Touch Samsung SGH-i320 Samsung SCH-U740 Alias

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