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Phone	Samsung SCH-A990	Samsung MM-A900 / SPH-A900 / Ace	LG Revolution	Apple iPhone 3GS	Sony Ericsson Xperia X10 mini pro (2010)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	4.3" diag. 5 : 3	3.5" diag. 5 : 3	2.6" diag. 4 : 3
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	60 Hz
Battery	1,000 mAh	?	1,500 mAh	?	930 mAh
Processor	?	?	1 GHz Qualcomm Snapdragon S2 MSM8655	?	600 MHz Qualcomm S1 MSM7227
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	16 GB	32 GB *	? raw hardware
Main Camera	3 megapixel	1 megapixel	5 megapixel	3 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	?	720p HD	VGA (640 x 480)	VGA (640 x 480)
Front Camera	-	-	1 megapixel	-	-
Weight	4.4 oz (125g)	3.9 oz (111g)	6.08 oz (172g)	4.76 oz (135g)	4.2 oz (119g)
Dimensions	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	5.03" x 2.64" x 0.52" (128 x 67 x 13.2 mm)	4.55" x 2.44" x 0.48" (116 x 62 x 12.3 mm)	3.5" x 2" x 0.7" (89 x 51 x 17.8 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Slide
Platform / OS	(proprietary)	(proprietary)	Android	iOS	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 13 CDMA: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	EVDO r0	EVDO r0	LTE (Cat 3)	HSPA 7.2	HSPA 7.2
Features
Flashlight	Yes	-	-	-	-
GPS / Location	Yes	Yes	n/a	n/a	n/a
Accessibility
Hearing Aid Compatible	Yes M3 (mostly compatible)	-	Yes M4, T3 (mostly tele-coil compatible)	-	-
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	Yes	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes	Yes	Yes	Yes	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	Yes
Contacts
Picture ID	Yes	Yes	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	Yes	Yes	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	Yes	-	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	Yes	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	-	Yes
Messaging
Email Client	-	-	n/a	n/a	n/a
EMS / Picture Messaging	Yes	-	n/a	n/a	n/a
Instant Messaging	-	-	n/a	n/a	n/a
MMS	Yes	-	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	Yes	Yes	n/a	n/a	n/a
Stereo Speakers	Yes	-	-	-	-
Photo & Video
DLNA	-	-	Yes	-	-
TV Output	Yes	-	Yes	Yes	-
Video Calling	-	-	n/a	n/a	n/a
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	-	Yes	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
BREW	Yes	-	n/a	n/a	n/a
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	-	Yes	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	-	Yes	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SCH-A990	Samsung MM-A900 / SPH-A900 / Ace	LG Revolution	Apple iPhone 3GS	Sony Ericsson Xperia X10 mini pro (2010)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SCH-A990	Samsung MM-A900 / SPH-A900 / Ace	LG Revolution	Apple iPhone 3GS	Sony Ericsson Xperia X10 mini pro (2010)