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Phone Samsung Jack i637 Kyocera 2135 Ericsson R278d Ericsson T28 World Motorola RAZR2 V8
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? ? ? ?
Display Resolution & Type 320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
? 101 x 40 pixels ? 240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 1,480 mAh 925 mAh ? 500 mAh 770 mAh
Processor ? ? ? ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel - - - 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - - - ?
Front Camera - - - - -
Weight 3.6 oz
(102g)
4.7 oz
(133g)
9.28 oz
(263g)
3.14 oz
(89g)
4.13 oz
(117g)
Dimensions 4.4" x 2.4" x 0.5"
(112 x 61 x 12.7 mm)
5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
4.06" x 2.09" x 0.47"
(103 x 53 x 11.9 mm)
Form Factor Slab Slab Slab Flip Clamshell
Platform / OS Windows Mobile Standard (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

TDMA: 850, 1900

AMPS: 850

GSM: 900, 1900

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 - - - EDGE
Features 
GPS / Location n/a - - - -
Accessibility
Hearing Aid Compatible Yes - - - Yes
Multiple Languages n/a Yes Yes - Yes
TTY/TDD (Digital) - - - - Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes - Yes Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
- - - Yes
Classic Audio
USB Yes - - - Yes
Micro-USB
Wi-Fi Yes
802.11 b,g
- - - -
Contacts
Picture ID n/a - - - Yes
Ringer ID n/a - - - Yes
Voice Dialing n/a - - Yes Yes
Customization
Changeable Body Plates - Yes - - -
Custom Graphics n/a - - - Yes
Custom Ringtones n/a Yes Yes Yes Yes
Real-Music Ringers n/a - - - -
Data & Network
Data Tethering n/a Yes Yes Yes -
WAP / Web Browser n/a Yes Yes - Yes
Input
Predictive Text Entry n/a Yes Yes - Yes
Side Keys Yes - Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Memory
Memory Card Slot Yes - - - -
Messaging
Email Client n/a - - - Yes
Instant Messaging n/a - - - Yes
MMS n/a - - - Yes
Text Messaging Templates n/a Yes - - Yes
Music
Music Player n/a - - - Yes
Productivity
Alarm n/a Yes Yes Yes Yes
Calculator n/a Yes - Yes Yes
Calendar n/a - - - Yes
To-Do List n/a - - - -
Voice Memo n/a - - - Yes
Software
Games n/a Yes - Yes Yes
Java (J2ME) n/a - - - Yes
Voice
Headset Jack (2.5 mm) n/a Yes - - -
Speaker Phone Yes - - - Yes
  Samsung Jack i637 Kyocera 2135 Ericsson R278d Ericsson T28 World Motorola RAZR2 V8
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Jack i637 Kyocera 2135 Ericsson R278d Ericsson T28 World Motorola RAZR2 V8

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