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Phone Nokia Lumia 521 / 520 BlackBerry 7750 Sony Ericsson Xperia X10 mini (2010) Coolpad Defiant
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Not yet released Released
Specifications 
Display Size 4" diag.
5 : 3
? 2.6" diag.
4 : 3
5" diag.
16 : 9
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
240 x 320 pixels
(~157 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery 1,430 mAh ? ? 2,450 mAh
Processor 1 GHz Qualcomm Snapdragon S4 MSM8270 ? 600 MHz Qualcomm S1 MSM7227 1.4 GHz Qualcomm Snapdragon 425 (MSM8917)
RAM 512 MB ? ? 1 GB
Storage 8 GB ? raw hardware ? raw hardware 8 GB
Main Camera 5 megapixel - 5 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD - VGA (640 x 480) 720p HD
Front Camera - - - 2 megapixel
Weight 4.39 oz
(124g)
5.01 oz
(142g)
3.11 oz
(88g)
6.5 oz
(184g)
Dimensions 4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
3.26" x 1.97" x 0.64"
(83 x 50 x 16.3 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
Platform / OS Windows BlackBerry OS Android Android
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology HSPA+ 21 1xRTT HSPA 7.2 LTE (Cat 4)
Features 
Flashlight - - - Yes
Accessibility
Hearing Aid Compatible Yes - - Yes
TTY/TDD (Digital) Yes Yes - Yes
Alerts
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes - Yes Yes
USB Yes Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi Yes - Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Input
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - -
Touch Screen Yes - Yes Yes
Memory
Memory Card Slot Yes - Yes Yes
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) Yes - Yes Yes
Voice
Speaker Phone Yes - Yes Yes
  Nokia Lumia 521 / 520 BlackBerry 7750 Sony Ericsson Xperia X10 mini (2010) Coolpad Defiant
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia Lumia 521 / 520 BlackBerry 7750 Sony Ericsson Xperia X10 mini (2010) Coolpad Defiant

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