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Phone Nokia E90 Sony Ericsson Z310 Samsung Comeback T559 Palm Treo 755p Motorola KRZR K1
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 2.6" diag.
5 : 3
? ?
Display Resolution & Type 800 x 352 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
400 x 240 pixels
(~179 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 1,500 mAh ? 960 mAh 1,600 mAh 780 mAh
Processor 332 MHz ARM 11 ? ? 312 MHz Intel XScale ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel Yes 2 megapixel 1 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture VGA (640 x 480) - QVGA (320 x 240) CIF (352 x 288) ?
Front Camera - - - - -
Weight 7.41 oz
(210g)
3.2 oz
(91g)
4.6 oz
(130g)
5.64 oz
(160g)
3.6 oz
(102g)
Dimensions 5.2" x 2.24" x 0.79"
(132 x 57 x 20.1 mm)
3.4" x 1.8" x 1"
(86 x 46 x 25.4 mm)
4.33" x 2.2" x 0.73"
(110 x 56 x 18.5 mm)
4.4" x 2.3" x 0.84"
(112 x 58 x 21.3 mm)
4.05" x 1.65" x 0.63"
(103 x 42 x 16 mm)
Form Factor Clamshell Clamshell Slab Slab Clamshell
Platform / OS S60 (Symbian) (proprietary) (proprietary) Palm OS (proprietary)
Network Bands

WCDMA: 1

GSM: 850, 900, 1800, 1900

GSM: 850, 1800, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 EDGE HSDPA 3.6 EVDO r0 EDGE
Features 
GPS / Location n/a - - n/a -
Accessibility
Adjustable Text Size n/a - - n/a -
Hearing Aid Compatible - Yes - Yes -
Multiple Languages n/a Yes Yes n/a Yes
TTY/TDD (Digital) - Yes - Yes Yes
Alerts
Extra Display Yes Yes Yes - Yes
Ringer Profiles Yes Yes Yes - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes Yes - Yes -
USB Yes
Mini-USB
Yes Yes Yes Yes
Wi-Fi Yes
802.11 b,g
- - - -
Contacts
Picture ID n/a Yes Yes n/a Yes
Ringer ID n/a Yes Yes n/a Yes
Voice Dialing n/a - Yes n/a Yes
Customization
Custom Graphics n/a Yes Yes n/a Yes
Custom Ringtones n/a Yes Yes n/a Yes
Real-Music Ringers n/a Yes Yes n/a -
Data & Network
Data Tethering n/a Yes - n/a Yes
External Antenna Jack n/a - - n/a -
WAP / Web Browser n/a Yes Yes n/a Yes
Input
Predictive Text Entry n/a Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - Yes Yes -
Touch Screen - - - Yes -
Memory
Memory Card Slot Yes - Yes Yes Yes
Messaging
Email Client n/a Yes Yes n/a Yes
EMS / Picture Messaging n/a - - n/a Yes
Instant Messaging n/a - Yes n/a -
MMS n/a Yes Yes n/a Yes
Text Messaging Templates n/a Yes Yes n/a Yes
Music
FM Radio Yes - - - -
Music Player n/a - Yes n/a Yes
Photo & Video
Video Calling n/a - - n/a -
Productivity
Alarm n/a Yes Yes n/a Yes
Calculator n/a Yes Yes n/a Yes
Calendar n/a Yes Yes n/a Yes
To-Do List n/a Yes Yes n/a -
Voice Memo n/a Yes Yes n/a Yes
Software
Games n/a Yes Yes n/a Yes
Java (J2ME) n/a Yes Yes n/a Yes
Voice
Headset Jack (2.5 mm) n/a - - n/a -
Push-To-Talk Yes * - - - Yes *
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Nokia E90 Sony Ericsson Z310 Samsung Comeback T559 Palm Treo 755p Motorola KRZR K1
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Phone Nokia E90 Sony Ericsson Z310 Samsung Comeback T559 Palm Treo 755p Motorola KRZR K1

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