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Phone	BlackBerry Storm2 9550	BlackBerry Curve 3G 9330	Nokia Lumia 521 / 520
Current U.S. Carriers	(none)	(none)	(none)
Global Availability	Released	Released	Released
Display Size	3.3" diag. 4 : 3	2.5" diag. 4 : 3	4" diag. 5 : 3
Display Resolution & Type	360 x 480 pixels (~185 ppi) LCD (TFT/TFD)	320 x 240 pixels (~160 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?
Battery	1,400 mAh	1,150 mAh	1,430 mAh
Processor	?	?	1 GHz Qualcomm Snapdragon S4 MSM8270
RAM	?	?	512 MB
Storage	? raw hardware	? raw hardware	8 GB
Main Camera	3 megapixel	2 megapixel	5 megapixel
Wide Camera	-	-	-
Tele Camera	-	-	-
Video Capture	?	?	720p HD
Front Camera	-	-	-
Weight	5.64 oz (160g)	3.7 oz (105g)	4.39 oz (124g)
Dimensions	4.43" x 2.45" x 0.55" (113 x 62 x 14 mm)	4.29" x 2.36" x 0.55" (109 x 60 x 14 mm)	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)
Platform / OS	BlackBerry OS	BlackBerry OS	Windows
Network Bands	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	EVDO rA	EVDO r0	HSPA+ 21
Features
Accessibility
Hearing Aid Compatible	Yes	Yes	Yes
TTY/TDD (Digital)	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes
USB	Yes	Yes Micro-USB	Yes
Wi-Fi	Yes 802.11 b,g	Yes 802.11 b,g	Yes
Input
Side Keys	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-
Touch Screen	Yes	-	Yes
Memory
Memory Card Slot	Yes	Yes	Yes
Music
Headphone Jack (3.5mm)	Yes	Yes	Yes
Voice
Speaker Phone	Yes	Yes	Yes
	BlackBerry Storm2 9550	BlackBerry Curve 3G 9330	Nokia Lumia 521 / 520
	X >	< X >	< X

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


Phone	BlackBerry Storm2 9550	BlackBerry Curve 3G 9330	Nokia Lumia 521 / 520