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Phone	Samsung MM-A900 / SPH-A900 / Ace	HTC Touch Pro2 (CDMA)	Sanyo RL-4930	Motorola Backflip	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	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	128 x 112 pixels LCD (STN)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	?	1,500 mAh	1,700 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	1 megapixel	3 megapixel	-	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	?	-	CIF (352 x 288)	?
Front Camera	-	-	-	-	-
Weight	3.9 oz (111g)	6.35 oz (180g)	4.4 oz (125g)	4.7 oz (133g)	3.46 oz (98g)
Dimensions	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm)	4.5" x 2" x 1" (114 x 51 x 25.4 mm)	4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm)	3.27" x 1.81" x 0.94" (83 x 46 x 23.9 mm)
Form Factor	Clamshell	Slab	Slab	Clamshell	Clamshell
Platform / OS	(proprietary)	Windows Mobile Professional	(proprietary)	Android	(proprietary)
Network Bands	CDMA: 850, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900
Data Technology	EVDO r0	EVDO rA	1xRTT	HSPA 7.2	GPRS
Features
GPS / Location	Yes	n/a	Yes	n/a	-
Ruggedized	-	-	Yes	-	-
Accessibility
Adjustable Text Size	-	n/a	-	n/a	-
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M3 (mostly compatible)	-
Multiple Languages	Yes	n/a	Yes	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	Yes
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	-	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
USB	Yes	Yes	Yes	Yes Micro-USB	Yes
Wi-Fi	-	Yes	-	Yes 802.11 b,g	-
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
Changeable Body Plates	-	-	-	-	Yes
Custom Graphics	Yes	n/a	Yes	n/a	Yes
Custom Ringtones	Yes	n/a	Yes	n/a	Yes
Real-Music Ringers	-	n/a	-	n/a	Yes
Data & Network
Data Tethering	Yes	n/a	-	n/a	Yes
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
Stylus	-	Yes	-	-	-
Text Keyboard, Hardware	-	Yes	-	Yes	-
Touch Screen	-	Yes Resistive	-	Yes Capacitive	-
Memory
Memory Card Slot	-	Yes	-	Yes	-
Messaging
Email Client	-	n/a	-	n/a	Yes
EMS / Picture Messaging	-	n/a	-	n/a	Yes
Instant Messaging	-	n/a	-	n/a	-
MMS	-	n/a	-	n/a	Yes
Text Messaging Templates	Yes	n/a	-	n/a	Yes
Music
Headphone Jack (3.5mm)	-	Yes	-	Yes	-
Music Player	Yes	n/a	-	n/a	-
Photo & Video
TV Output	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	Yes	n/a	Yes
Calculator	Yes	n/a	-	n/a	Yes
Calendar	Yes	n/a	Yes	n/a	Yes
To-Do List	Yes	n/a	Yes	n/a	Yes
Voice Memo	Yes	n/a	Yes	n/a	Yes
Software
Games	Yes	n/a	Yes	n/a	Yes
Java (J2ME)	Yes	n/a	Yes	n/a	Yes
Voice
Call Screening	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	-	n/a	-
Push-To-Talk	-	-	Yes	-	Yes *
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung MM-A900 / SPH-A900 / Ace	HTC Touch Pro2 (CDMA)	Sanyo RL-4930	Motorola Backflip	Sony Ericsson Z520 / Z525
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung MM-A900 / SPH-A900 / Ace	HTC Touch Pro2 (CDMA)	Sanyo RL-4930	Motorola Backflip	Sony Ericsson Z520 / Z525