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Phone Siemens CX75 Samsung Galaxy S II / SGH-i777 Nokia Lumia 521 / 520 Samsung SPH-A250
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Not yet released Released Released Not yet released
Specifications 
Display Size ? 4.3" diag.
5 : 3
4" diag.
5 : 3
?
Display Resolution & Type 132 x 176 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~217 ppi)
AMOLED
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
?
Display Refresh ? 60 Hz ? ?
Battery 750 mAh 1,650 mAh 1,430 mAh ?
Processor ? 1.2 GHz Samsung Exynos dual-core 1 GHz Qualcomm Snapdragon S4 MSM8270 ?
RAM ? ? 512 MB ?
Storage ? raw hardware 16 GB 8 GB ? raw hardware
Main Camera 1 megapixel 8 megapixel 5 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 1080p HD 720p HD -
Front Camera - 2 megapixel - -
Weight 3.46 oz
(98g)
4.3 oz
(122g)
4.39 oz
(124g)
2.82 oz
(80g)
Dimensions 4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
4.96" x 2.6" x 0.35"
(126 x 66 x 8.9 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
2.76" x 1.91" x 0.83"
(70 x 49 x 21.1 mm)
Form Factor Slab Slab Slab Clamshell
Platform / OS (proprietary) Android Windows (proprietary)
Network Bands

GSM: 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 1900

Data Technology GPRS HSPA+ 21 HSPA+ 21 -
Features 
GPS / Location - n/a n/a -
Accessibility
Hearing Aid Compatible - Yes Yes -
Multiple Languages Yes n/a n/a -
TTY/TDD (Digital) - Yes Yes -
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes -
Infrared (IR) Yes - - -
Mobile Hotspot - n/a n/a -
NFC - Yes - -
USB Yes Yes
Micro-USB
Yes -
Wi-Fi - Yes
4 (802.11 a,b,g,n)
Yes -
Contacts
Picture ID Yes n/a n/a -
Ringer ID Yes n/a n/a -
Voice Dialing - n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a -
Custom Ringtones Yes n/a n/a -
Real-Music Ringers - 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
Touch Screen - Yes Yes -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client Yes n/a n/a -
EMS / Picture Messaging Yes n/a n/a -
Instant Messaging - n/a n/a -
MMS Yes n/a n/a -
Text Messaging Templates - n/a n/a -
Music
Headphone Jack (3.5mm) - Yes Yes -
Music Player Yes n/a n/a -
Photo & Video
DLNA - Yes - -
TV Output - 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 Yes n/a n/a Yes
Voice Memo Yes n/a n/a -
Software
Games Yes n/a n/a -
Java (J2ME) Yes n/a n/a -
Voice
Headset Jack (2.5 mm) - n/a n/a Yes
Push-To-Talk Yes - - -
Speaker Phone Yes Yes Yes -
  Siemens CX75 Samsung Galaxy S II / SGH-i777 Nokia Lumia 521 / 520 Samsung SPH-A250
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Siemens CX75 Samsung Galaxy S II / SGH-i777 Nokia Lumia 521 / 520 Samsung SPH-A250

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