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Specifications
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Phone	HTC Touch Pro2 (CDMA)	Motorola Backflip	Samsung SPH-A660 / VI660	Palm Treo 600 (CDMA)	Sony Ericsson Z520 / Z525
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.6" diag. 5 : 3	3.1" diag. 5 : 3	?	?	?
Display Resolution & Type	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	160 x 160 pixels LCD (Color)	128 x 160 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	1,500 mAh	1,400 mAh	?	?	?
Processor	528 MHz MSM7600	528 MHz Qualcomm MSM7201a	?	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	3 megapixel	5 megapixel	-	Yes	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	CIF (352 x 288)	-	-	?
Front Camera	-	-	-	-	-
Weight	6.35 oz (180g)	4.7 oz (133g)	3.54 oz (100g)	6.2 oz (176g)	3.46 oz (98g)
Dimensions	4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm)	4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	3.27" x 1.81" x 0.94" (83 x 46 x 23.9 mm)
Form Factor	Slab	Clamshell	Clamshell	Slab	Clamshell
Platform / OS	Windows Mobile Professional	Android	(proprietary)	Palm OS	(proprietary)
Network Bands	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900
Data Technology	EVDO rA	HSPA 7.2	1xRTT	1xRTT	GPRS
Features
GPS / Location	n/a	n/a	Yes	n/a	-
Accessibility
Adjustable Text Size	n/a	n/a	-	n/a	-
Hearing Aid Compatible	Yes M4, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	-	-	-
Multiple Languages	n/a	n/a	Yes	n/a	Yes
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	-	-	Yes
Infrared (IR)	-	-	-	Yes	Yes
USB	Yes	Yes Micro-USB	-	Yes	Yes
Wi-Fi	Yes	Yes 802.11 b,g	-	-	-
Contacts
Picture ID	n/a	n/a	Yes	n/a	Yes
Ringer ID	n/a	n/a	Yes	n/a	Yes
Voice Dialing	n/a	n/a	Yes	n/a	Yes
Customization
Changeable Body Plates	-	-	-	-	Yes
Custom Graphics	n/a	n/a	Yes	n/a	Yes
Custom Ringtones	n/a	n/a	Yes	n/a	Yes
Real-Music Ringers	n/a	n/a	-	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	Yes
WAP / Web Browser	n/a	n/a	Yes	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Stylus	Yes	-	-	-	-
Text Keyboard, Hardware	Yes	Yes	-	Yes	-
Touch Screen	Yes Resistive	Yes Capacitive	-	Yes	-
Memory
Memory Card Slot	Yes	Yes	-	Yes	-
Messaging
Email Client	n/a	n/a	-	n/a	Yes
EMS / Picture Messaging	n/a	n/a	-	n/a	Yes
Instant Messaging	n/a	n/a	-	n/a	-
MMS	n/a	n/a	-	n/a	Yes
Text Messaging Templates	n/a	n/a	-	n/a	Yes
Music
Headphone Jack (3.5mm)	Yes	Yes	-	-	-
Music Player	n/a	n/a	-	n/a	-
Photo & Video
TV Output	Yes	-	-	-	-
Productivity
Alarm	n/a	n/a	Yes	n/a	Yes
Calculator	n/a	n/a	Yes	n/a	Yes
Calendar	n/a	n/a	Yes	n/a	Yes
To-Do List	n/a	n/a	Yes	n/a	Yes
Voice Memo	n/a	n/a	Yes	n/a	Yes
Software
Games	n/a	n/a	Yes	n/a	Yes
Java (J2ME)	n/a	n/a	Yes	n/a	Yes
Voice
Headset Jack (2.5 mm)	n/a	n/a	Yes	n/a	-
Push-To-Talk	-	-	-	-	Yes *
Speaker Phone	Yes	Yes	-	Yes	Yes
	* Some versions only
	HTC Touch Pro2 (CDMA)	Motorola Backflip	Samsung SPH-A660 / VI660	Palm Treo 600 (CDMA)	Sony Ericsson Z520 / Z525
	X >	< X >	< X >	< X >	< X

NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	HTC Touch Pro2 (CDMA)	Motorola Backflip	Samsung SPH-A660 / VI660	Palm Treo 600 (CDMA)	Sony Ericsson Z520 / Z525