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Phone	Samsung SPH-A660 / VI660	LG eXpo GW820	Samsung SCH-U430	Sony Ericsson Xperia X10 mini pro (2010)	Motorola V551 / V330 / V547 / V555 / V557
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.2" diag. 5 : 3	?	2.6" diag. 4 : 3	?
Display Resolution & Type	128 x 160 pixels LCD (Color)	480 x 800 pixels (~292 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	?	1,500 mAh	1,000 mAh	930 mAh	820 mAh
Processor	?	?	?	600 MHz Qualcomm S1 MSM7227	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	-	5 megapixel	Yes	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	-	VGA (640 x 480)	?
Front Camera	-	-	-	-	-
Weight	3.54 oz (100g)	5.2 oz (147g)	3.21 oz (91g)	4.2 oz (119g)	4.23 oz (120g)
Dimensions	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.45" x 2.16" x 0.63" (113 x 55 x 16 mm)	3.67" x 1.85" x 0.78" (93 x 47 x 19.8 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)
Form Factor	Clamshell	Slab	Clamshell	Slide	Clamshell
Platform / OS	(proprietary)	Windows Mobile Professional	(proprietary)	Android	(proprietary)
Network Bands	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *
Data Technology	1xRTT	HSPA 7.2	1xRTT	HSPA 7.2	EDGE
Features
Fingerprint Reader	-	Yes	-	-	-
GPS / Location	Yes	n/a	Yes	n/a	-
Accessibility
Adjustable Text Size	-	n/a	Yes	n/a	-
Hearing Aid Compatible	-	-	Yes M4, T4 (very tele-coil 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	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
USB	-	Yes Micro-USB	-	Yes Micro-USB	Yes
Wi-Fi	-	Yes 802.11 b,g	-	Yes	-
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
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
Text Keyboard, Hardware	-	Yes	-	Yes	-
Touch Screen	-	Yes Resistive	-	Yes Capacitive	-
Memory
Memory Card Slot	-	Yes	-	Yes	-
Messaging
Email Client	-	n/a	Yes	n/a	Yes
EMS / Picture Messaging	-	n/a	Yes	n/a	Yes
Instant Messaging	-	n/a	Yes	n/a	Yes
MMS	-	n/a	Yes	n/a	Yes
Text Messaging Templates	-	n/a	Yes	n/a	Yes
Music
FM Radio	-	Yes	-	Yes	-
Headphone Jack (3.5mm)	-	-	-	Yes	-
Music Player	-	n/a	-	n/a	-
Photo & Video
TV Output	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	Yes	n/a	Yes
Calculator	Yes	n/a	Yes	n/a	Yes
Calendar	Yes	n/a	Yes	n/a	Yes
To-Do List	Yes	n/a	-	n/a	-
Voice Memo	Yes	n/a	Yes	n/a	Yes
Software
BREW	-	n/a	Yes	n/a	-
Games	Yes	n/a	Yes	n/a	Yes
Java (J2ME)	Yes	n/a	-	n/a	Yes
Voice
Headset Jack (2.5 mm)	Yes	n/a	Yes	n/a	Yes
Speaker Phone	-	Yes	Yes	Yes	Yes
	Samsung SPH-A660 / VI660	LG eXpo GW820	Samsung SCH-U430	Sony Ericsson Xperia X10 mini pro (2010)	Motorola V551 / V330 / V547 / V555 / V557
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Samsung SPH-A660 / VI660	LG eXpo GW820	Samsung SCH-U430	Sony Ericsson Xperia X10 mini pro (2010)	Motorola V551 / V330 / V547 / V555 / V557