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Phone Samsung SPH-A250 Ericsson R278d Motorola ROKR E2 Ericsson T28 World Nokia 6155i
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size ? ? ? ? ?
Display Resolution & Type ? 101 x 40 pixels 240 x 320 pixels
LCD (TFT/TFD)
? 128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery ? ? ? 500 mAh 1,070 mAh
Processor ? ? ? ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - 1 megapixel - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - ? - sub-QCIF (128 x 96)
Front Camera - - - - -
Weight 2.82 oz
(80g)
9.28 oz
(263g)
3.77 oz
(107g)
3.14 oz
(89g)
4.44 oz
(126g)
Dimensions 2.76" x 1.91" x 0.83"
(70 x 49 x 21.1 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
3.41" x 1.79" x 1.02"
(87 x 45 x 25.9 mm)
Form Factor Clamshell Slab Slab Flip Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 1900

TDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

GSM: 900, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology - - EDGE - 1xRTT
Features 
GPS / Location - - - - Yes
Accessibility
Multiple Languages - Yes Yes - Yes
TTY/TDD (Digital) - - - - Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles - Yes Yes Yes Yes
Connectivity
Bluetooth - - Yes
Classic Audio
- -
Infrared (IR) - - - - Yes
USB - - Yes - Yes
Contacts
Picture ID - - Yes - Yes
Ringer ID - - Yes - Yes
Voice Dialing Yes - Yes Yes Yes
Customization
Custom Graphics - - Yes - Yes
Custom Ringtones - Yes Yes Yes Yes
Real-Music Ringers - - - - Yes
Data & Network
Data Tethering Yes Yes Yes Yes Yes
WAP / Web Browser Yes Yes Yes - Yes
Input
Predictive Text Entry Yes Yes Yes - Yes
Side Keys Yes Yes Yes Yes Yes
Memory
Memory Card Slot - - Yes - -
Messaging
Email Client - - Yes - -
MMS - - Yes - Yes
Text Messaging Templates - - Yes - Yes
Music
FM Radio - - Yes - Yes
Headphone Jack (3.5mm) - - Yes - -
Music Player - - Yes - -
Productivity
Alarm Yes Yes Yes Yes Yes
Calculator Yes - Yes Yes Yes
Calendar Yes - Yes - Yes
To-Do List Yes - Yes - Yes
Voice Memo - - Yes - Yes
Software
BREW - - - - Yes *
Games - - Yes Yes Yes
Java (J2ME) - - Yes - Yes *
Voice
Headset Jack (2.5 mm) Yes - - - Yes
Push-To-Talk - - - - Yes *
Speaker Phone - - Yes - Yes
  * Some versions only
  Samsung SPH-A250 Ericsson R278d Motorola ROKR E2 Ericsson T28 World Nokia 6155i
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SPH-A250 Ericsson R278d Motorola ROKR E2 Ericsson T28 World Nokia 6155i

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