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Phone	BlackBerry Storm2 9550	Samsung Chrono	Apple iPhone 4 (GSM)	Samsung Galaxy S II / SGH-i777
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	3.3" diag. 4 : 3	2" diag. 4 : 3	3.5" diag. 5 : 3	4.3" diag. 5 : 3
Display Resolution & Type	360 x 480 pixels (~185 ppi) LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED
Display Refresh	?	?	60 Hz	60 Hz
Battery	1,400 mAh	?	?	1,650 mAh
Processor	?	?	Apple A4	1.2 GHz Samsung Exynos dual-core
RAM	?	?	?	?
Storage	? raw hardware	? raw hardware	32 GB *	16 GB
Main Camera	3 megapixel	Yes	5 megapixel	8 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	?	-	720p HD	1080p HD
Front Camera	-	-	Yes	2 megapixel
Weight	5.64 oz (160g)	3.14 oz (89g)	4.8 oz (136g)	4.3 oz (122g)
Dimensions	4.43" x 2.45" x 0.55" (113 x 62 x 14 mm)	3.7" x 1.83" x 0.67" (94 x 46 x 17 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4.96" x 2.6" x 0.35" (126 x 66 x 8.9 mm)
Form Factor	Slab	Clamshell	Slab	Slab
Platform / OS	BlackBerry OS	(proprietary)	iOS	Android
Network Bands	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1700, 1900 *	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	EVDO rA	1xRTT	HSPA 7.2	HSPA+ 21
Features
GPS / Location	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a
Hearing Aid Compatible	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	n/a	Yes	n/a	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
NFC	-	-	-	Yes
USB	Yes	Yes Micro-USB	Yes	Yes Micro-USB
Wi-Fi	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	n/a	Yes	n/a	n/a
Ringer ID	n/a	Yes	n/a	n/a
Voice Dialing	n/a	Yes	n/a	n/a
Customization
Custom Graphics	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	-	n/a	n/a
Data & Network
Data Tethering	n/a	-	n/a	n/a
WAP / Web Browser	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	-	-	Yes
Messaging
Email Client	n/a	Yes	n/a	n/a
Instant Messaging	n/a	-	n/a	n/a
MMS	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	Yes	-	Yes	Yes
Music Player	n/a	-	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes
TV Output	-	-	Yes	Yes
Productivity
Alarm	n/a	Yes	n/a	n/a
Calculator	n/a	Yes	n/a	n/a
Calendar	n/a	Yes	n/a	n/a
To-Do List	n/a	-	n/a	n/a
Voice Memo	n/a	Yes	n/a	n/a
Software
BREW	n/a	Yes	n/a	n/a
Games	n/a	Yes	n/a	n/a
Java (J2ME)	n/a	-	n/a	n/a
Voice
Speaker Phone	Yes	Yes	Yes	Yes
	* Some versions only
	BlackBerry Storm2 9550	Samsung Chrono	Apple iPhone 4 (GSM)	Samsung Galaxy S II / SGH-i777
	X >	< X >	< X >	< X

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


Phone	BlackBerry Storm2 9550	Samsung Chrono	Apple iPhone 4 (GSM)	Samsung Galaxy S II / SGH-i777