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Phone Samsung M400 LG LX-5550 / VX-5550 Samsung Focus 2 Ericsson R520
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? 4" diag.
5 : 3
?
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
120 x 160 pixels
LCD (STN)
480 x 800 pixels
(~233 ppi)
AMOLED
?
Display Refresh ? ? ? ?
Battery 1,000 mAh 950 mAh 1,750 mAh ?
Processor 400 MHz Qualcomm QSC6155 ? 1.4 GHz Qualcomm Snapdragon ?
RAM 128 MB ? ? ?
Storage 256 MB ? raw hardware 8 GB ? raw hardware
Main Camera 1 megapixel - 5 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - 720p HD -
Front Camera - - Yes -
Weight 3.7 oz
(105g)
3.89 oz
(110g)
4.3 oz
(122g)
4.23 oz
(120g)
Dimensions 3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
3.52" x 1.9" x 0.94"
(89 x 48 x 23.9 mm)
4.79" x 2.47" x 0.43"
(122 x 63 x 10.9 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
Form Factor Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) Windows (proprietary)
Network Bands

CDMA: 800, 850, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 4, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology 1xRTT 1xRTT LTE (Cat 3) GPRS
Features 
GPS / Location Yes Yes n/a -
Accessibility
Adjustable Text Size Yes - n/a -
Hearing Aid Compatible Yes - - -
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display Yes Yes - -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes - Yes Yes
Infrared (IR) - - - Yes
Mobile Hotspot - - n/a -
USB Yes
Micro-USB
Yes Yes -
Wi-Fi - - Yes -
Contacts
Picture ID Yes - n/a -
Ringer ID Yes Yes n/a -
Voice Dialing Yes Yes n/a Yes
Customization
Custom Graphics Yes Yes n/a -
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers Yes - n/a -
Data & Network
Data Tethering - Yes n/a Yes
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen - - Yes -
Messaging
Email Client - Yes n/a -
Instant Messaging - - n/a -
MMS Yes - n/a -
Text Messaging Templates Yes - n/a Yes
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) Yes - Yes -
Music Player - - n/a -
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a Yes
Calendar Yes Yes n/a Yes
Voice Memo Yes Yes n/a Yes
Software
BREW - Yes n/a -
Games Yes Yes n/a Yes
Voice
Headset Jack (2.5 mm) - Yes n/a -
Speaker Phone Yes Yes Yes Yes
  Samsung M400 LG LX-5550 / VX-5550 Samsung Focus 2 Ericsson R520
  X > < X > < X > < X

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

 
Phone Samsung M400 LG LX-5550 / VX-5550 Samsung Focus 2 Ericsson R520

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