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Phone Samsung SGH-X640 Coolpad Defiant Nokia Lumia 521 / 520 BlackBerry Storm2 9550
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
4" diag.
5 : 3
3.3" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
360 x 480 pixels
(~185 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 800 mAh 2,450 mAh 1,430 mAh 1,400 mAh
Processor ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) 1 GHz Qualcomm Snapdragon S4 MSM8270 ?
RAM ? 1 GB 512 MB ?
Storage ? raw hardware 8 GB 8 GB ? raw hardware
Main Camera Yes 5 megapixel 5 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 720p HD 720p HD ?
Front Camera - 2 megapixel - -
Weight 3 oz
(85g)
6.5 oz
(184g)
4.39 oz
(124g)
5.64 oz
(160g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.43" x 2.45" x 0.55"
(113 x 62 x 14 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Windows BlackBerry OS
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 1

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology GPRS LTE (Cat 4) HSPA+ 21 EVDO rA
Features 
Flashlight - Yes - -
GPS / Location - n/a n/a n/a
Accessibility
Adjustable Text Size - n/a n/a n/a
Hearing Aid Compatible - Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Ringer Profiles - - - Yes
Connectivity
Bluetooth - Yes Yes Yes
Mobile Hotspot - n/a n/a n/a
USB - Yes
Micro-USB
Yes Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes Yes
802.11 b,g
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing - n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers - n/a n/a n/a
Data & Network
Data Tethering - n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - n/a n/a n/a
EMS / Picture Messaging Yes n/a n/a n/a
Instant Messaging - n/a n/a n/a
MMS Yes n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player - n/a n/a n/a
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
To-Do List Yes n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
Games Yes n/a n/a n/a
Java (J2ME) Yes n/a n/a n/a
Voice
Headset Jack (2.5 mm) Yes n/a n/a n/a
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-X640 Coolpad Defiant Nokia Lumia 521 / 520 BlackBerry Storm2 9550
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Phone Samsung SGH-X640 Coolpad Defiant Nokia Lumia 521 / 520 BlackBerry Storm2 9550

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