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Phone Sony Ericsson T68i Siemens SL55 BlackBerry Curve 8300 Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? 4" diag.
5 : 3
Display Resolution & Type 101 x 80 pixels
LCD (STN)
101 x 80 pixels
LCD (STN)
320 x 240 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 700 mAh 500 mAh ? 1,430 mAh
Processor ? ? ? 1 GHz Qualcomm Snapdragon S4 MSM8270
RAM ? ? ? 512 MB
Storage ? raw hardware ? raw hardware ? raw hardware 8 GB
Main Camera - - 2 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - - 720p HD
Front Camera - - - -
Weight 2.96 oz
(84g)
2.79 oz
(79g)
3.92 oz
(111g)
4.39 oz
(124g)
Dimensions 3.94" x 1.89" x 0.79"
(100 x 48 x 20.1 mm)
3.21" x 1.75" x 0.86"
(82 x 44 x 21.8 mm)
4.2" x 2.36" x 0.61"
(107 x 60 x 15.5 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Form Factor Slab Slide Slab Slab
Platform / OS (proprietary) (proprietary) BlackBerry OS Windows
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology GPRS GPRS EDGE HSPA+ 21
Features 
GPS / Location - - n/a n/a
Accessibility
Adjustable Text Size - - n/a n/a
Hearing Aid Compatible - - - Yes
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) - - Yes Yes
Alerts
Ringer Profiles Yes Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
Yes
Infrared (IR) Yes Yes - -
Mobile Hotspot - - n/a n/a
USB - - Yes Yes
Wi-Fi - - - Yes
Contacts
Picture ID Yes Yes n/a n/a
Ringer ID Yes Yes n/a n/a
Voice Dialing Yes Yes n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers - - n/a n/a
Data & Network
Data Tethering Yes Yes n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Touch Screen - - - Yes
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client Yes Yes n/a n/a
EMS / Picture Messaging Yes Yes n/a n/a
Instant Messaging - - n/a n/a
MMS Yes Yes n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes
Music Player - - n/a n/a
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes Yes n/a n/a
To-Do List Yes Yes n/a n/a
Voice Memo Yes Yes n/a n/a
Software
Games Yes Yes n/a n/a
Java (J2ME) - Yes n/a n/a
Voice
Push-To-Talk - - Yes * -
Speaker Phone - Yes Yes Yes
  * Some versions only
  Sony Ericsson T68i Siemens SL55 BlackBerry Curve 8300 Nokia Lumia 521 / 520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Ericsson T68i Siemens SL55 BlackBerry Curve 8300 Nokia Lumia 521 / 520

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