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Phone Nokia 6255i / 6256i Palm Treo Pro (GSM) LG VX-6100 Motorola Droid Ultra Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 5" diag.
16 : 9
4" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
AMOLED
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 1,070 mAh 1,500 mAh 1,000 mAh 2,130 mAh 1,430 mAh
Processor ? 400 MHz MSM7201 ? 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T 1 GHz Qualcomm Snapdragon S4 MSM8270
RAM ? ? ? 2 GB 512 MB
Storage ? raw hardware ? raw hardware ? raw hardware 16 GB 8 GB
Main Camera Yes 2 megapixel Yes 10 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? ? - 1080p HD 720p HD
Front Camera - - - 2 megapixel -
Weight 4.23 oz
(120g)
4.69 oz
(133g)
3.88 oz
(110g)
4.83 oz
(137g)
4.39 oz
(124g)
Dimensions 3.36" x 1.87" x 0.97"
(85 x 47 x 24.6 mm)
4.49" x 2.36" x 0.53"
(114 x 60 x 13.5 mm)
3.56" x 1.9" x 0.94"
(90 x 48 x 23.9 mm)
5.41" x 2.8" x 0.28"
(137 x 71 x 7.2 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) Windows Mobile Professional (proprietary) Android Windows
Network Bands

CDMA: 850, 1900

AMPS: 850

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology 1xRTT HSDPA 3.6 1xRTT LTE (Cat 3) HSPA+ 21
Features 
GPS / Location Yes n/a Yes n/a n/a
Accessibility
Adjustable Text Size - n/a - n/a n/a
Hearing Aid Compatible Yes - - Yes Yes
Multiple Languages Yes n/a Yes n/a n/a
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display Yes - Yes - -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes Yes - Yes Yes
Infrared (IR) Yes - - - -
Mobile Hotspot - n/a - n/a n/a
NFC - - - Yes -
USB Yes Yes
Micro-USB
Yes Yes
Micro-USB
Yes
Wi-Fi - Yes
802.11 b,g
- Yes
4 (802.11 a,b,g,n)
Yes
Contacts
Picture ID Yes n/a Yes n/a n/a
Ringer ID Yes n/a Yes n/a n/a
Voice Dialing Yes 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 Yes n/a - n/a n/a
Data & Network
Data Tethering Yes n/a Yes 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
Stylus - Yes - - -
Text Keyboard, Hardware - Yes - - -
Touch Screen - Yes - Yes Yes
Memory
Memory Card Slot Yes Yes - - Yes
Messaging
Email Client Yes n/a - n/a n/a
EMS / Picture Messaging Yes * n/a Yes n/a n/a
Instant Messaging - n/a - n/a n/a
MMS Yes n/a Yes n/a n/a
Text Messaging Templates Yes n/a Yes n/a n/a
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) - Yes - Yes Yes
Music Player Yes * n/a - n/a n/a
Photo & Video
Miracast - - - Yes -
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 - n/a n/a
Voice Memo Yes n/a Yes n/a n/a
Software
BREW Yes * n/a Yes n/a n/a
Games Yes n/a Yes n/a n/a
Java (J2ME) Yes * n/a - n/a n/a
Voice
Headset Jack (2.5 mm) Yes n/a Yes n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Nokia 6255i / 6256i Palm Treo Pro (GSM) LG VX-6100 Motorola Droid Ultra Nokia Lumia 521 / 520
  X > < X > < X > < X > < X

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

 
Phone Nokia 6255i / 6256i Palm Treo Pro (GSM) LG VX-6100 Motorola Droid Ultra Nokia Lumia 521 / 520

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