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Phone Samsung SCH-A990 Nokia Lumia 521 / 520 Samsung SGH-E316 / SGH-E317 Samsung Rugby A837
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 4" diag.
5 : 3
? 2" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 1,000 mAh 1,430 mAh ? 1,000 mAh
Processor ? 1 GHz Qualcomm Snapdragon S4 MSM8270 ? ?
RAM ? 512 MB ? ?
Storage ? raw hardware 8 GB ? raw hardware ? raw hardware
Main Camera 3 megapixel 5 megapixel Yes 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 720p HD ? QCIF (176 x 144)
Front Camera - - - -
Weight 4.4 oz
(125g)
4.39 oz
(124g)
3 oz
(85g)
4.66 oz
(132g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
3.3" x 1.8" x 0.8"
(84 x 46 x 20.3 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
Form Factor Clamshell Slab Clamshell Clamshell
Platform / OS (proprietary) Windows (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 HSPA+ 21 GPRS HSDPA 3.6
Features 
Flashlight Yes - - -
GPS / Location Yes n/a - Yes
Ruggedized - - - Yes
Accessibility
Hearing Aid Compatible Yes Yes - Yes
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - Yes Yes
Connectivity
Bluetooth Yes Yes - Yes
Mobile Hotspot - n/a - -
USB Yes Yes - Yes
Wi-Fi - Yes - -
Contacts
Picture ID Yes n/a Yes Yes
Ringer ID Yes n/a Yes Yes
Voice Dialing Yes n/a - -
Customization
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers Yes n/a - Yes
Data & Network
Data Tethering Yes n/a - Yes
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes
Touch Screen - Yes - -
Memory
Memory Card Slot Yes Yes - Yes
Messaging
Email Client - n/a - Yes
EMS / Picture Messaging Yes n/a Yes -
Instant Messaging - n/a - Yes
MMS Yes n/a Yes Yes
Text Messaging Templates Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes - -
Music Player Yes n/a - Yes
Stereo Speakers Yes - - -
Photo & Video
TV Output Yes - - -
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes Yes
Calendar Yes n/a Yes Yes
To-Do List - n/a Yes -
Voice Memo Yes n/a Yes Yes
Software
BREW Yes n/a - -
Games Yes n/a Yes Yes
Java (J2ME) - n/a Yes Yes
Voice
Push-To-Talk - - - Yes
Speaker Phone Yes Yes - Yes
  Samsung SCH-A990 Nokia Lumia 521 / 520 Samsung SGH-E316 / SGH-E317 Samsung Rugby A837
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A990 Nokia Lumia 521 / 520 Samsung SGH-E316 / SGH-E317 Samsung Rugby A837

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