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Phone Samsung SCH-A990 Palm Treo 650 (GSM) Sony Ericsson TM506 HTC G2 Casio G'zOne Rock
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 2.2" diag.
4 : 3
3.7" diag.
5 : 3
2.1" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 1,000 mAh ? 950 mAh 1,300 mAh 1,150 mAh
Processor ? 312 MHz Intel XScale PXA270 ? 800 MHz Qualcomm S2 MSM7230 ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel Yes 2 megapixel 5 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? CIF (352 x 288) QVGA (320 x 240) 720p HD ?
Front Camera - - - - -
Weight 4.4 oz
(125g)
6.3 oz
(179g)
3.56 oz
(101g)
6.5 oz
(184g)
4.4 oz
(125g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
3.74" x 1.86" x 0.7"
(95 x 47 x 17.8 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
Form Factor Clamshell Slab Clamshell Slab Clamshell
Platform / OS (proprietary) Palm OS (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 1800, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology EVDO r0 EDGE HSDPA 3.6 HSPA 14.4 EVDO rA
Features 
Flashlight Yes - - - Yes
GPS / Location Yes n/a Yes n/a Yes
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
- - Yes
M3 (mostly compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) Yes - Yes - Yes
Alerts
Extra Display Yes - Yes - Yes
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - Yes - - -
Mobile Hotspot - n/a - n/a -
USB Yes Yes Yes Yes Yes
Wi-Fi - - - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a Yes n/a Yes
Ringer ID Yes n/a Yes n/a Yes
Voice Dialing Yes n/a Yes n/a Yes
Customization
Custom Graphics Yes n/a Yes n/a Yes
Custom Ringtones Yes n/a Yes n/a Yes
Real-Music Ringers Yes n/a Yes n/a Yes
Data & Network
Data Tethering Yes n/a - n/a Yes
External Antenna Jack - n/a Yes n/a -
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - Yes -
Touch Screen - Yes - Yes
Capacitive
-
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client - n/a Yes n/a Yes
EMS / Picture Messaging Yes n/a - n/a -
Instant Messaging - n/a Yes n/a Yes
MMS Yes n/a Yes n/a Yes
Text Messaging Templates Yes n/a Yes n/a Yes
Music
Headphone Jack (3.5mm) - - - Yes -
Music Player Yes n/a Yes n/a Yes
Stereo Speakers Yes - - - -
Photo & Video
TV Output Yes - - - -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List - n/a Yes n/a -
Voice Memo Yes n/a Yes n/a Yes
Software
BREW Yes n/a - n/a Yes
Games Yes n/a Yes n/a Yes
Java (J2ME) - n/a Yes n/a -
Voice
Headset Jack (2.5 mm) - n/a - n/a Yes
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SCH-A990 Palm Treo 650 (GSM) Sony Ericsson TM506 HTC G2 Casio G'zOne Rock
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A990 Palm Treo 650 (GSM) Sony Ericsson TM506 HTC G2 Casio G'zOne Rock

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