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Phone HP iPAQ 510 Voice Messenger Samsung JetSet R550 Samsung UpStage M620 Kyocera 2135
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2" diag.
4 : 3
2.1" diag.
4 : 3
2.1" diag.
4 : 3
?
Display Resolution & Type 176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
?
Display Refresh ? ? ? ?
Battery 1,100 mAh 800 mAh 620 mAh 925 mAh
Processor 200 MHz TI OMAP 850 ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel 2 megapixel 1 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture QCIF (176 x 144) ? ? -
Front Camera - - - -
Weight 3.6 oz
(102g)
3.32 oz
(94g)
2.57 oz
(73g)
4.7 oz
(133g)
Dimensions 4.21" x 1.91" x 0.64"
(107 x 49 x 16.3 mm)
3.64" x 1.85" x 0.69"
(92 x 47 x 17.5 mm)
4.07" x 1.73" x 0.37"
(103 x 44 x 9.4 mm)
5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS Windows Mobile Standard (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 850, 900, 1800, 1900

CDMA: 850, 1700, 1900

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology EDGE EVDO r0 EVDO r0 -
Features 
GPS / Location n/a Yes - -
Accessibility
Adjustable Text Size n/a - Yes -
Hearing Aid Compatible - Yes Yes -
Multiple Languages n/a Yes - Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - Yes Yes -
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
USB Yes
Mini-USB
- Yes -
Wi-Fi Yes
802.11 b,g
- - -
Contacts
Picture ID n/a Yes Yes -
Ringer ID n/a Yes Yes -
Voice Dialing n/a Yes Yes -
Customization
Changeable Body Plates - - - Yes
Custom Graphics n/a Yes Yes -
Custom Ringtones n/a Yes Yes Yes
Real-Music Ringers n/a - Yes -
Data & Network
Data Tethering n/a Yes - Yes
External Antenna Jack n/a - Yes -
WAP / Web Browser n/a Yes Yes Yes
Input
Predictive Text Entry n/a Yes Yes Yes
Side Keys Yes Yes Yes -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client n/a - - -
Instant Messaging n/a Yes Yes -
MMS n/a Yes Yes -
Text Messaging Templates n/a Yes Yes Yes
Music
Music Player n/a Yes Yes -
Productivity
Alarm n/a Yes Yes Yes
Calculator n/a 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
Java (J2ME) n/a - Yes -
Voice
Headset Jack (2.5 mm) n/a Yes - Yes
Speaker Phone Yes Yes Yes -
  HP iPAQ 510 Voice Messenger Samsung JetSet R550 Samsung UpStage M620 Kyocera 2135
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone HP iPAQ 510 Voice Messenger Samsung JetSet R550 Samsung UpStage M620 Kyocera 2135

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