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Phone	Motorola V551 / V330 / V547 / V555 / V557	Motorola Defy (2010)	Nokia Lumia 521 / 520	Sharp Sidekick LX 2009	BlackBerry Curve 8300
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.6" diag. 16 : 9	4" diag. 5 : 3	3.2" diag. 16 : 9	?
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	480 x 854 pixels (~272 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	854 x 480 pixels (~306 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	820 mAh	1,540 mAh	1,430 mAh	1,250 mAh	?
Processor	?	800 MHz TI OMAP3610	1 GHz Qualcomm Snapdragon S4 MSM8270	?	?
RAM	?	?	512 MB	?	?
Storage	? raw hardware	? raw hardware	8 GB	? raw hardware	? raw hardware
Main Camera	Yes	5 megapixel	5 megapixel	3 megapixel	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	?	720p HD	QVGA (320 x 240)	-
Front Camera	-	-	-	-	-
Weight	4.23 oz (120g)	4.16 oz (118g)	4.39 oz (124g)	5.78 oz (164g)	3.92 oz (111g)
Dimensions	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	4.21" x 2.32" x 0.53" (107 x 59 x 13.4 mm)	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)	5.12" x 2.36" x 0.63" (130 x 60 x 16 mm)	4.2" x 2.36" x 0.61" (107 x 60 x 15.5 mm)
Form Factor	Clamshell	Slab	Slab	Swivel	Slab
Platform / OS	(proprietary)	Android	Windows	(proprietary)	BlackBerry OS
Network Bands	GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900
Data Technology	EDGE	HSPA 7.2	HSPA+ 21	HSPA 7.2	EDGE
Features
GPS / Location	-	n/a	n/a	Yes	n/a
Ruggedized	-	Yes	-	-	-
Accessibility
Adjustable Text Size	-	n/a	n/a	Yes	n/a
Hearing Aid Compatible	-	-	Yes M3, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	-
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	Yes	-	-	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	-	n/a
USB	Yes	Yes Micro-USB	Yes	Yes	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes	-	-
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	Yes	n/a
Voice Dialing	Yes	n/a	n/a	-	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	Yes	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	-	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	-	n/a
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	Yes
Messaging
Email Client	Yes	n/a	n/a	Yes	n/a
EMS / Picture Messaging	Yes	n/a	n/a	-	n/a
Instant Messaging	Yes	n/a	n/a	Yes	n/a
MMS	Yes	n/a	n/a	Yes	n/a
Text Messaging Templates	Yes	n/a	n/a	Yes	n/a
Music
FM Radio	-	Yes	-	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	Yes
Music Player	-	n/a	n/a	Yes	n/a
Photo & Video
DLNA	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	-	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	-	n/a
Software
Games	Yes	n/a	n/a	Yes	n/a
Java (J2ME)	Yes	n/a	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	-	n/a
Push-To-Talk	-	-	-	-	Yes *
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Motorola V551 / V330 / V547 / V555 / V557	Motorola Defy (2010)	Nokia Lumia 521 / 520	Sharp Sidekick LX 2009	BlackBerry Curve 8300
	X >	< X >	< X >	< X >	< X

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


Phone	Motorola V551 / V330 / V547 / V555 / V557	Motorola Defy (2010)	Nokia Lumia 521 / 520	Sharp Sidekick LX 2009	BlackBerry Curve 8300