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Phone	Sony Ericsson W600i / W550i	Samsung SPH-A660 / VI660	Motorola Backflip	HTC Touch Pro2 (CDMA)	Samsung SCH-A990
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	3.1" diag. 5 : 3	3.6" diag. 5 : 3	?
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	?
Battery	?	?	1,400 mAh	1,500 mAh	1,000 mAh
Processor	?	?	528 MHz Qualcomm MSM7201a	528 MHz MSM7600	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	1 megapixel	-	5 megapixel	3 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	CIF (352 x 288)	?	?
Front Camera	-	-	-	-	-
Weight	4.2 oz (119g)	3.54 oz (100g)	4.7 oz (133g)	6.35 oz (180g)	4.4 oz (125g)
Dimensions	3.66" x 1.83" x 0.89" (93 x 46 x 22.6 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm)	4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)
Form Factor	Swivel	Clamshell	Clamshell	Slab	Clamshell
Platform / OS	(proprietary)	(proprietary)	Android	Windows Mobile Professional	(proprietary)
Network Bands	GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	EDGE	1xRTT	HSPA 7.2	EVDO rA	EVDO r0
Features
Flashlight	Yes	-	-	-	Yes
GPS / Location	-	Yes	n/a	n/a	Yes
Accessibility
Adjustable Text Size	-	-	n/a	n/a	-
Hearing Aid Compatible	-	-	Yes M3 (mostly compatible)	Yes M4, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	Yes	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
USB	Yes	-	Yes Micro-USB	Yes	Yes
Wi-Fi	-	-	Yes 802.11 b,g	Yes	-
Contacts
Picture ID	Yes	Yes	n/a	n/a	Yes
Ringer ID	Yes	Yes	n/a	n/a	Yes
Voice Dialing	Yes	Yes	n/a	n/a	Yes
Customization
Changeable Body Plates	Yes	-	-	-	-
Custom Graphics	Yes	Yes	n/a	n/a	Yes
Custom Ringtones	Yes	Yes	n/a	n/a	Yes
Real-Music Ringers	-	-	n/a	n/a	Yes
Data & Network
Data Tethering	Yes	Yes	n/a	n/a	Yes
WAP / Web Browser	Yes	Yes	n/a	n/a	Yes
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Stylus	-	-	-	Yes	-
Text Keyboard, Hardware	-	-	Yes	Yes	-
Touch Screen	-	-	Yes Capacitive	Yes Resistive	-
Memory
Memory Card Slot	-	-	Yes	Yes	Yes
Messaging
Email Client	Yes	-	n/a	n/a	-
EMS / Picture Messaging	Yes	-	n/a	n/a	Yes
Instant Messaging	-	-	n/a	n/a	-
MMS	Yes	-	n/a	n/a	Yes
Text Messaging Templates	Yes	-	n/a	n/a	Yes
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	-	-	Yes	Yes	-
Music Player	Yes	-	n/a	n/a	Yes
Stereo Speakers	-	-	-	-	Yes
Photo & Video
TV Output	-	-	-	Yes	Yes
Productivity
Alarm	Yes	Yes	n/a	n/a	Yes
Calculator	Yes	Yes	n/a	n/a	Yes
Calendar	Yes	Yes	n/a	n/a	Yes
To-Do List	Yes	Yes	n/a	n/a	-
Voice Memo	Yes	Yes	n/a	n/a	Yes
Software
BREW	-	-	n/a	n/a	Yes
Games	Yes	Yes	n/a	n/a	Yes
Java (J2ME)	Yes	Yes	n/a	n/a	-
Voice
Headset Jack (2.5 mm)	-	Yes	n/a	n/a	-
Speaker Phone	Yes	-	Yes	Yes	Yes
	Sony Ericsson W600i / W550i	Samsung SPH-A660 / VI660	Motorola Backflip	HTC Touch Pro2 (CDMA)	Samsung SCH-A990
	X >	< X >	< X >	< X >	< X

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


Phone	Sony Ericsson W600i / W550i	Samsung SPH-A660 / VI660	Motorola Backflip	HTC Touch Pro2 (CDMA)	Samsung SCH-A990