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

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 1800, 1900

CDMA: 850, 1900

Data Technology EDGE EVDO r0 HSPA 14.4 HSDPA 3.6 EVDO rA
Features 
Flashlight - Yes - - Yes
GPS / Location n/a Yes n/a Yes 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 n/a Yes n/a Yes 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 n/a Yes n/a Yes Yes
Ringer ID n/a Yes n/a Yes Yes
Voice Dialing n/a Yes n/a Yes Yes
Customization
Custom Graphics n/a Yes n/a Yes Yes
Custom Ringtones n/a Yes n/a Yes Yes
Real-Music Ringers n/a Yes n/a Yes Yes
Data & Network
Data Tethering n/a Yes n/a - Yes
External Antenna Jack n/a - n/a Yes -
WAP / Web Browser n/a Yes n/a Yes Yes
Input
Predictive Text Entry n/a Yes n/a Yes 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 - n/a Yes Yes
EMS / Picture Messaging n/a Yes n/a - -
Instant Messaging n/a - n/a Yes Yes
MMS n/a Yes n/a Yes Yes
Text Messaging Templates n/a Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) - - Yes - -
Music Player n/a Yes n/a Yes Yes
Stereo Speakers - Yes - - -
Photo & Video
TV Output - Yes - - -
Productivity
Alarm n/a Yes n/a Yes Yes
Calculator n/a Yes n/a Yes Yes
Calendar n/a Yes n/a Yes Yes
To-Do List n/a - n/a Yes -
Voice Memo n/a Yes n/a Yes Yes
Software
BREW n/a Yes n/a - Yes
Games n/a Yes n/a Yes Yes
Java (J2ME) n/a - n/a Yes -
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
  Palm Treo 650 (GSM) Samsung SCH-A990 HTC G2 Sony Ericsson TM506 Casio G'zOne Rock
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

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

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