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Phone Palm Treo 650 (GSM) Ericsson T39 Kyocera 2135 Ericsson T28 World Nokia 6155i
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? ? ?
Display Resolution & Type 320 x 320 pixels
LCD (TFT/TFD)
?
LCD (Grayscale)
? ? 128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery ? ? 925 mAh 500 mAh 1,070 mAh
Processor 312 MHz Intel XScale PXA270 ? ? ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes - - - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture CIF (352 x 288) - - - sub-QCIF (128 x 96)
Front Camera - - - - -
Weight 6.3 oz
(179g)
3.03 oz
(86g)
4.7 oz
(133g)
3.14 oz
(89g)
4.44 oz
(126g)
Dimensions 4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
3.78" x 1.97" x 0.71"
(96 x 50 x 18 mm)
5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 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 Slab Flip Slab Flip Clamshell
Platform / OS Palm OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology EDGE GPRS - - 1xRTT
Features 
GPS / Location n/a - - - Yes
Accessibility
Multiple Languages n/a Yes Yes - Yes
TTY/TDD (Digital) - - - - Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles - Yes - Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
HSP, DUN, OPP, Sync
- - -
Infrared (IR) Yes Yes - - Yes
USB Yes - - - Yes
Contacts
Picture ID n/a - - - Yes
Ringer ID n/a - - - Yes
Voice Dialing n/a Yes - Yes Yes
Customization
Changeable Body Plates - - Yes - -
Custom Graphics n/a Yes - - Yes
Custom Ringtones n/a Yes Yes Yes Yes
Real-Music Ringers n/a - - - Yes
Data & Network
Data Tethering n/a Yes 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 - - - -
Touch Screen Yes - - - -
Memory
Memory Card Slot Yes - - - -
Messaging
Email Client n/a - - - -
MMS n/a - - - Yes
Text Messaging Templates n/a Yes Yes - Yes
Music
FM Radio - - - - Yes
Music Player n/a - - - -
Productivity
Alarm n/a Yes Yes Yes Yes
Calculator n/a Yes Yes Yes Yes
Calendar n/a Yes - - Yes
To-Do List n/a - - - Yes
Voice Memo n/a Yes - - Yes
Software
BREW n/a - - - Yes *
Games n/a Yes Yes Yes Yes
Java (J2ME) n/a - - - Yes *
Voice
Headset Jack (2.5 mm) n/a - Yes - Yes
Push-To-Talk - - - - Yes *
Speaker Phone Yes - - - Yes
  * Some versions only
  Palm Treo 650 (GSM) Ericsson T39 Kyocera 2135 Ericsson T28 World Nokia 6155i
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Phone Palm Treo 650 (GSM) Ericsson T39 Kyocera 2135 Ericsson T28 World Nokia 6155i

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