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Phone Siemens CX75 Coolpad Defiant Nokia 6263 Nokia E66 Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
2.2" diag.
4 : 3
2.4" diag.
4 : 3
4" diag.
5 : 3
Display Resolution & Type 132 x 176 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? ?
Battery 750 mAh 2,450 mAh 1,020 mAh 1,000 mAh 1,430 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 ? raw hardware ? raw hardware 8 GB
Main Camera 1 megapixel 5 megapixel 1 megapixel 3 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? 720p HD ? QVGA (320 x 240) 720p HD
Front Camera - 2 megapixel - - -
Weight 3.46 oz
(98g)
6.5 oz
(184g)
3.7 oz
(105g)
4.27 oz
(121g)
4.39 oz
(124g)
Dimensions 4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
3.72" x 1.88" x 0.85"
(94 x 48 x 21.6 mm)
4.21" x 1.93" x 0.51"
(107 x 49 x 13 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Form Factor Slab Slab Clamshell Slide Slab
Platform / OS (proprietary) Android (proprietary) S60 (Symbian) Windows
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology GPRS LTE (Cat 4) WCDMA (UMTS) HSDPA 3.6 HSPA+ 21
Features 
Flashlight - Yes - - -
GPS / Location - n/a - n/a n/a
Accessibility
Adjustable Text Size - n/a Yes n/a n/a
Hearing Aid Compatible - Yes
M4, T3 (mostly tele-coil compatible)
- - Yes
M3, T4 (very tele-coil compatible)
Multiple Languages Yes n/a Yes n/a n/a
TTY/TDD (Digital) - Yes - - Yes
Alerts
Extra Display - - Yes - -
Ringer Profiles Yes - Yes Yes -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) Yes - - Yes -
Mobile Hotspot - n/a - n/a n/a
USB Yes Yes
Micro-USB
Yes
Mini-USB
Yes
Micro-USB
Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
- Yes
802.11 b,g
Yes
Contacts
Picture ID Yes n/a Yes n/a n/a
Ringer ID Yes n/a Yes n/a n/a
Voice Dialing - n/a Yes n/a n/a
Customization
Custom Graphics Yes n/a Yes n/a n/a
Custom Ringtones Yes n/a Yes n/a n/a
Real-Music Ringers - n/a Yes n/a n/a
Data & Network
Data Tethering Yes n/a - n/a n/a
WAP / Web Browser Yes n/a Yes n/a n/a
Input
Predictive Text Entry Yes n/a Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
- - Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client Yes n/a Yes 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 Yes n/a n/a
Text Messaging Templates - n/a Yes n/a n/a
Music
FM Radio - - Yes Yes -
Headphone Jack (3.5mm) - Yes - - Yes
Music Player Yes n/a Yes n/a n/a
Photo & Video
Video Calling - n/a - n/a n/a
Productivity
Alarm Yes n/a Yes n/a n/a
Calculator Yes n/a Yes n/a n/a
Calendar Yes n/a Yes n/a n/a
To-Do List Yes n/a Yes n/a n/a
Voice Memo Yes n/a Yes n/a n/a
Software
Games Yes n/a Yes n/a n/a
Java (J2ME) Yes n/a Yes n/a n/a
Voice
Headset Jack (2.5 mm) - n/a Yes n/a n/a
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Siemens CX75 Coolpad Defiant Nokia 6263 Nokia E66 Nokia Lumia 521 / 520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Siemens CX75 Coolpad Defiant Nokia 6263 Nokia E66 Nokia Lumia 521 / 520

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