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Phone Ericsson T28 World Kyocera 2135 Motorola SLVR L7 Ericsson R278d Nokia N90
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? ? ?
Display Resolution & Type ? ? 176 x 220 pixels
LCD (TFT/TFD)
101 x 40 pixels 352 x 416 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 500 mAh 925 mAh 820 mAh ? 760 mAh
Processor ? ? ? ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - Yes - 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - ? - CIF (352 x 288)
Front Camera - - - - -
Weight 3.14 oz
(89g)
4.7 oz
(133g)
3.03 oz
(86g)
9.28 oz
(263g)
6.1 oz
(173g)
Dimensions 3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 mm)
4.47" x 1.93" x 0.45"
(114 x 49 x 11.4 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
4.41" x 2.01" x 0.94"
(112 x 51 x 23.9 mm)
Form Factor Flip Slab Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary) S60 (Symbian)
Network Bands

GSM: 900, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 850, 900, 1800, 1900

TDMA: 850, 1900

AMPS: 850

WCDMA: 1

GSM: 900, 1800, 1900

Data Technology - - GPRS - EDGE
Features 
Accessibility
Multiple Languages - Yes Yes Yes n/a
TTY/TDD (Digital) - - Yes - -
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes - Yes Yes Yes
Connectivity
Bluetooth - - Yes
Classic Audio
- Yes
Classic Audio
USB - - Yes
Mini-USB
- Yes
Contacts
Picture ID - - Yes - n/a
Ringer ID - - Yes - n/a
Voice Dialing Yes - Yes - n/a
Customization
Changeable Body Plates - Yes - - -
Custom Graphics - - Yes - n/a
Custom Ringtones Yes Yes Yes Yes n/a
Data & Network
Data Tethering Yes Yes Yes Yes n/a
WAP / Web Browser - Yes Yes Yes n/a
Input
Predictive Text Entry - Yes Yes Yes n/a
Side Keys Yes - Yes Yes Yes
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client - - Yes - n/a
EMS / Picture Messaging - - Yes - n/a
MMS - - Yes - n/a
Text Messaging Templates - Yes Yes - n/a
Music
Music Player - - Yes - n/a
Photo & Video
Video Calling - - - - n/a
Productivity
Alarm Yes Yes Yes Yes n/a
Calculator Yes Yes Yes - n/a
Calendar - - Yes - n/a
To-Do List - - - - n/a
Voice Memo - - Yes * - n/a
Software
Games Yes Yes Yes - n/a
Java (J2ME) - - Yes - n/a
Voice
Headset Jack (2.5 mm) - Yes - - n/a
Push-To-Talk - - Yes * - Yes
Speaker Phone - - Yes - Yes
  * Some versions only
  Ericsson T28 World Kyocera 2135 Motorola SLVR L7 Ericsson R278d Nokia N90
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T28 World Kyocera 2135 Motorola SLVR L7 Ericsson R278d Nokia N90

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