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Phone Samsung SGH-X820 Nokia 6155i Motorola i305 Motorola i450 / i455
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? ?
Display Resolution & Type 220 x 176 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
96 x 64 pixels
LCD (Black & White)
130 x 130 pixels
LCD (STN)
Display Refresh ? ? ? ?
Battery 650 mAh 1,070 mAh ? ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 2 megapixel 1 megapixel - -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? sub-QCIF (128 x 96) - -
Front Camera - - - -
Weight 2.33 oz
(66g)
4.44 oz
(126g)
5.08 oz
(144g)
4.5 oz
(128g)
Dimensions 4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
3.41" x 1.79" x 1.02"
(87 x 45 x 25.9 mm)
5.04" x 2.32" x 1.3"
(128 x 59 x 33 mm)
3.5" x 2" x 1.1"
(89 x 51 x 27.9 mm)
Form Factor Slab Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

iDEN: 800

iDEN: 800

Data Technology EDGE 1xRTT - -
Features 
GPS / Location - Yes Yes Yes
Ruggedized - - Yes -
Accessibility
Hearing Aid Compatible - - - Yes
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Extra Display - Yes - Yes
Ringer Profiles - Yes - Yes
Connectivity
Bluetooth Yes
Classic Audio
- - -
Infrared (IR) - Yes - -
USB Yes Yes Yes Yes
Contacts
Picture ID Yes Yes - Yes
Ringer ID Yes Yes Yes Yes
Voice Dialing - Yes Yes Yes
Customization
Custom Graphics Yes Yes - Yes
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers Yes Yes Yes Yes *
Data & Network
Data Tethering - Yes Yes Yes
External Antenna Jack Yes - - -
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes
Messaging
Email Client Yes - - -
EMS / Picture Messaging Yes - - -
MMS Yes Yes - Yes
Text Messaging Templates Yes Yes Yes Yes
Music
FM Radio - Yes - -
Photo & Video
TV Output Yes - - -
Productivity
Alarm Yes Yes - -
Calculator Yes Yes - -
Calendar Yes Yes - Yes
To-Do List Yes Yes - -
Voice Memo Yes Yes Yes Yes
Software
BREW - Yes * - -
Games Yes Yes - Yes
Java (J2ME) Yes Yes * - Yes
Voice
Headset Jack (2.5 mm) - Yes Yes Yes
Push-To-Talk - Yes * Yes Yes
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X820 Nokia 6155i Motorola i305 Motorola i450 / i455
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X820 Nokia 6155i Motorola i305 Motorola i450 / i455

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