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Phone Ericsson R520 Nokia Lumia 521 / 520 Nokia N-Gage QD Nokia 7160 Kyocera Slider Remix KX5 / Slider Sonic
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 4" diag.
5 : 3
? ? ?
Display Resolution & Type ? 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
176 x 208 pixels
LCD (Color)
96 x 65 pixels 176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery ? 1,430 mAh 1,070 mAh ? 900 mAh
Processor ? 1 GHz Qualcomm Snapdragon S4 MSM8270 ? ? ?
RAM ? 512 MB ? ? ?
Storage ? raw hardware 8 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera - 5 megapixel - - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 720p HD - - ?
Front Camera - - - - -
Weight 4.23 oz
(120g)
4.39 oz
(124g)
5.04 oz
(143g)
4.9 oz
(139g)
3.88 oz
(110g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.65" x 2.68" x 0.87"
(118 x 68 x 22.1 mm)
4.92" x 2.09" x 0.95"
(125 x 53 x 24.1 mm)
3.89" x 1.85" x 0.9"
(99 x 47 x 22.9 mm)
Form Factor Slab Slab Slab Slide Slide
Platform / OS (proprietary) Windows S60 (Symbian) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

*

TDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

*

Data Technology GPRS HSPA+ 21 GPRS - 1xRTT
Features 
GPS / Location - n/a n/a - Yes
Accessibility
Hearing Aid Compatible - Yes - - Yes
Multiple Languages Yes n/a n/a Yes -
TTY/TDD (Digital) - Yes - - Yes
Alerts
Ringer Profiles Yes - Yes Yes -
Connectivity
Bluetooth Yes
HSP, Sync, OPP, DUN
Yes Yes
Classic Audio
- Yes *
Classic Audio
Infrared (IR) Yes - - Yes -
Mobile Hotspot - n/a n/a - -
USB - Yes - - -
Wi-Fi - Yes - - -
Contacts
Picture ID - n/a n/a - Yes
Ringer ID - n/a n/a - Yes
Voice Dialing Yes n/a n/a Yes Yes
Customization
Custom Graphics - n/a n/a - Yes
Custom Ringtones Yes n/a n/a Yes Yes
Real-Music Ringers - n/a n/a - -
Data & Network
Data Tethering Yes n/a n/a Yes Yes
WAP / Web Browser Yes n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys Yes Yes - - Yes
Touch Screen - Yes - - -
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - n/a n/a - -
EMS / Picture Messaging - n/a n/a - Yes
Instant Messaging - n/a n/a - Yes *
MMS - n/a n/a - Yes
Text Messaging Templates Yes n/a n/a - -
Music
Headphone Jack (3.5mm) - Yes - - -
Music Player - n/a n/a - Yes
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List - n/a n/a Yes -
Voice Memo Yes n/a n/a - Yes *
Software
BREW - n/a n/a - Yes *
Games Yes n/a n/a Yes Yes
Java (J2ME) - n/a n/a - Yes *
Voice
Headset Jack (2.5 mm) - n/a n/a - Yes
Speaker Phone Yes Yes Yes - Yes
  * Some versions only
  Ericsson R520 Nokia Lumia 521 / 520 Nokia N-Gage QD Nokia 7160 Kyocera Slider Remix KX5 / Slider Sonic
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Phone Ericsson R520 Nokia Lumia 521 / 520 Nokia N-Gage QD Nokia 7160 Kyocera Slider Remix KX5 / Slider Sonic

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