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Phone	Samsung MM-A900 / SPH-A900 / Ace	Samsung Knack U310	BlackBerry 8830	Motorola Defy (2010)	Samsung Vibrant (Galaxy S)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.2" diag. 4 : 3	?	3.6" diag. 16 : 9	4" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	480 x 854 pixels (~272 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	?	?	?	60 Hz	60 Hz
Battery	?	1,000 mAh	1,400 mAh	1,540 mAh	1,500 mAh
Processor	?	?	?	800 MHz TI OMAP3610	1 GHz Samsung Hummingbird Cortex A8
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	1 megapixel	-	-	5 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	-	?	720p HD
Front Camera	-	-	-	-	-
Weight	3.9 oz (111g)	3.63 oz (103g)	4.6 oz (130g)	4.16 oz (118g)	4.16 oz (118g)
Dimensions	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	4.49" x 2.6" x 0.55" (114 x 66 x 14 mm)	4.21" x 2.32" x 0.53" (107 x 59 x 13.4 mm)	4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	BlackBerry OS	Android	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900 GSM: 900, 1800 *	WCDMA: 1, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900
Data Technology	EVDO r0	-	EVDO r0	HSPA 7.2	HSPA 7.2
Features
GPS / Location	Yes	Yes	n/a	n/a	n/a
Ruggedized	-	-	-	Yes	-
Accessibility
Adjustable Text Size	-	Yes	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	-	Yes M3, 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	-	-	-
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Mobile Hotspot	-	-	n/a	n/a	n/a
USB	Yes	-	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	-	Yes 4 (802.11 b,g,n)	Yes
Contacts
Picture ID	Yes	-	n/a	n/a	n/a
Ringer ID	Yes	-	n/a	n/a	n/a
Voice Dialing	Yes	Yes	n/a	n/a	n/a
Customization
Custom Graphics	Yes	-	n/a	n/a	n/a
Custom Ringtones	Yes	-	n/a	n/a	n/a
Real-Music Ringers	-	-	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	-	n/a	n/a	n/a
WAP / Web Browser	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
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	-	-	n/a	n/a	n/a
Text Messaging Templates	Yes	-	n/a	n/a	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	Yes	-	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	Yes
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	-	n/a	n/a	n/a
Software
Games	Yes	-	n/a	n/a	n/a
Java (J2ME)	Yes	-	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	Yes	n/a	n/a	n/a
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung MM-A900 / SPH-A900 / Ace	Samsung Knack U310	BlackBerry 8830	Motorola Defy (2010)	Samsung Vibrant (Galaxy S)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung MM-A900 / SPH-A900 / Ace	Samsung Knack U310	BlackBerry 8830	Motorola Defy (2010)	Samsung Vibrant (Galaxy S)