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Specifications
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Phone	LG Revolution	LG eXpo GW820	Samsung MM-A900 / SPH-A900 / Ace	Samsung SPH-A660 / VI660	Samsung Vibrant (Galaxy S)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.3" diag. 5 : 3	3.2" diag. 5 : 3	?	?	4" diag. 5 : 3
Display Resolution & Type	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	480 x 800 pixels (~292 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	1,500 mAh	1,500 mAh	?	?	1,500 mAh
Processor	1 GHz Qualcomm Snapdragon S2 MSM8655	?	?	?	1 GHz Samsung Hummingbird Cortex A8
RAM	?	?	?	?	?
Storage	16 GB	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	5 megapixel	5 megapixel	1 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	?	?	-	720p HD
Front Camera	1 megapixel	-	-	-	-
Weight	6.08 oz (172g)	5.2 oz (147g)	3.9 oz (111g)	3.54 oz (100g)	4.16 oz (118g)
Dimensions	5.03" x 2.64" x 0.52" (128 x 67 x 13.2 mm)	4.45" x 2.16" x 0.63" (113 x 55 x 16 mm)	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm)
Form Factor	Slab	Slab	Clamshell	Clamshell	Slab
Platform / OS	Android	Windows Mobile Professional	(proprietary)	(proprietary)	Android
Network Bands	4G LTE: 13 CDMA: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900
Data Technology	LTE (Cat 3)	HSPA 7.2	EVDO r0	1xRTT	HSPA 7.2
Features
Fingerprint Reader	-	Yes	-	-	-
GPS / Location	n/a	n/a	Yes	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, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	n/a	n/a	-	-	n/a
USB	Yes	Yes Micro-USB	Yes	-	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	-	-	Yes
Contacts
Picture ID	n/a	n/a	Yes	Yes	n/a
Ringer ID	n/a	n/a	Yes	Yes	n/a
Voice Dialing	n/a	n/a	Yes	Yes	n/a
Customization
Custom Graphics	n/a	n/a	Yes	Yes	n/a
Custom Ringtones	n/a	n/a	Yes	Yes	n/a
Real-Music Ringers	n/a	n/a	-	-	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	Yes	n/a
WAP / Web Browser	n/a	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	Yes Capacitive	Yes Resistive	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	-	-	Yes
Messaging
Email Client	n/a	n/a	-	-	n/a
Instant Messaging	n/a	n/a	-	-	n/a
MMS	n/a	n/a	-	-	n/a
Text Messaging Templates	n/a	n/a	Yes	-	n/a
Music
FM Radio	-	Yes	-	-	-
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	n/a	Yes	-	n/a
Photo & Video
DLNA	Yes	-	-	-	Yes
TV Output	Yes	Yes	-	-	-
Video Calling	n/a	n/a	-	-	n/a
Productivity
Alarm	n/a	n/a	Yes	Yes	n/a
Calculator	n/a	n/a	Yes	Yes	n/a
Calendar	n/a	n/a	Yes	Yes	n/a
To-Do List	n/a	n/a	Yes	Yes	n/a
Voice Memo	n/a	n/a	Yes	Yes	n/a
Software
Games	n/a	n/a	Yes	Yes	n/a
Java (J2ME)	n/a	n/a	Yes	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	n/a	Yes	Yes	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	LG Revolution	LG eXpo GW820	Samsung MM-A900 / SPH-A900 / Ace	Samsung SPH-A660 / VI660	Samsung Vibrant (Galaxy S)
	X >	< X >	< X >	< X >	< X

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


Phone	LG Revolution	LG eXpo GW820	Samsung MM-A900 / SPH-A900 / Ace	Samsung SPH-A660 / VI660	Samsung Vibrant (Galaxy S)