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Phone	Samsung SCH-A990	Palm Pre 2 (GSM)	Sony Ericsson Xperia X10 mini pro (2010)	Motorola V551 / V330 / V547 / V555 / V557	Samsung M520
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.1" diag. 5 : 3	2.6" diag. 4 : 3	?	2.1" diag. 4 : 3
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	?
Battery	1,000 mAh	1,150 mAh	930 mAh	820 mAh	?
Processor	?	1 GHz TI 3630	600 MHz Qualcomm S1 MSM7227	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	3 megapixel	5 megapixel	5 megapixel	Yes	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	VGA (640 x 480)	VGA (640 x 480)	?	?
Front Camera	-	-	-	-	-
Weight	4.4 oz (125g)	5.1 oz (145g)	4.2 oz (119g)	4.23 oz (120g)	2.75 oz (78g)
Dimensions	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	3.96" x 2.35" x 0.67" (101 x 60 x 17 mm)	3.5" x 2" x 0.7" (89 x 51 x 17.8 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	4.01" x 2.04" x 0.5" (102 x 52 x 12.7 mm)
Form Factor	Clamshell	Slide	Slide	Clamshell	Slide
Platform / OS	(proprietary)	webOS	Android	(proprietary)	(proprietary)
Network Bands	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900
Data Technology	EVDO r0	HSDPA 3.6	HSPA 7.2	EDGE	EVDO r0
Features
Flashlight	Yes	-	-	-	-
GPS / Location	Yes	n/a	n/a	-	Yes
Accessibility
Hearing Aid Compatible	Yes M3 (mostly compatible)	-	-	-	Yes M4 (very compatible)
Multiple Languages	Yes	n/a	n/a	Yes	Yes
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	Yes	-	-	Yes	-
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
USB	Yes	Yes Micro-USB	Yes Micro-USB	Yes	Yes
Wi-Fi	-	Yes 802.11 b,g	Yes	-	-
Contacts
Picture ID	Yes	n/a	n/a	Yes	Yes
Ringer ID	Yes	n/a	n/a	Yes	Yes
Voice Dialing	Yes	n/a	n/a	Yes	Yes
Customization
Custom Graphics	Yes	n/a	n/a	Yes	Yes
Custom Ringtones	Yes	n/a	n/a	Yes	Yes
Real-Music Ringers	Yes	n/a	n/a	Yes	-
Data & Network
Data Tethering	Yes	n/a	n/a	Yes	Yes
WAP / Web Browser	Yes	n/a	n/a	Yes	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	Yes	-	-
Touch Screen	-	Yes Capacitive	Yes Capacitive	-	-
Memory
Memory Card Slot	Yes	-	Yes	-	Yes
Messaging
Email Client	-	n/a	n/a	Yes	-
EMS / Picture Messaging	Yes	n/a	n/a	Yes	-
Instant Messaging	-	n/a	n/a	Yes	-
MMS	Yes	n/a	n/a	Yes	-
Text Messaging Templates	Yes	n/a	n/a	Yes	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	-	-	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	Yes
Calculator	Yes	n/a	n/a	Yes	Yes
Calendar	Yes	n/a	n/a	Yes	Yes
To-Do List	-	n/a	n/a	-	Yes
Voice Memo	Yes	n/a	n/a	Yes	Yes
Software
BREW	Yes	n/a	n/a	-	-
Games	Yes	n/a	n/a	Yes	Yes
Java (J2ME)	-	n/a	n/a	Yes	Yes
Voice
Headset Jack (2.5 mm)	-	n/a	n/a	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SCH-A990	Palm Pre 2 (GSM)	Sony Ericsson Xperia X10 mini pro (2010)	Motorola V551 / V330 / V547 / V555 / V557	Samsung M520
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SCH-A990	Palm Pre 2 (GSM)	Sony Ericsson Xperia X10 mini pro (2010)	Motorola V551 / V330 / V547 / V555 / V557	Samsung M520