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Phone Nokia N81 Palm Pixi Plus (GSM) Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
2.6" diag.
4 : 3
4" diag.
5 : 3
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
320 x 400 pixels
(~195 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery 1,050 mAh 1,150 mAh 1,430 mAh
Processor 369 MHz ARM 11 Qualcomm S1 MSM7227 1 GHz Qualcomm Snapdragon S4 MSM8270
RAM ? ? 512 MB
Storage 8 GB * ? raw hardware 8 GB
Main Camera 2 megapixel 2 megapixel 5 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture VGA (640 x 480) VGA (640 x 480) 720p HD
Front Camera - - -
Weight 4.94 oz
(140g)
3.26 oz
(92g)
4.39 oz
(124g)
Dimensions 4.02" x 1.97" x 0.7"
(102 x 50 x 17.8 mm)
4.37" x 2.17" x 0.43"
(111 x 55 x 10.9 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Platform / OS S60 (Symbian) webOS Windows
Network Bands

WCDMA: 1

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology EDGE HSDPA 3.6 HSPA+ 21
Features 
Accessibility
Hearing Aid Compatible - Yes Yes
TTY/TDD (Digital) - Yes Yes
Alerts
Ringer Profiles Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi Yes
802.11 b,g
Yes
802.11 b,g
Yes
Input
Side Keys Yes Yes Yes
Text Keyboard, Hardware - Yes -
Touch Screen - Yes Yes
Memory
Memory Card Slot Yes * - Yes
Music
FM Radio Yes - -
Headphone Jack (3.5mm) Yes Yes Yes
Stereo Speakers Yes - -
Voice
Push-To-Talk Yes * - -
Speaker Phone Yes Yes Yes
  * Some versions only
  Nokia N81 Palm Pixi Plus (GSM) Nokia Lumia 521 / 520
  X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia N81 Palm Pixi Plus (GSM) Nokia Lumia 521 / 520

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