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Phone	BlackBerry Pearl 3G 9100 / 9105	Samsung Galaxy S II, Epic 4G Touch	Siemens M75	Nokia E90	ZTE Z221
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Not yet released	Released	Released
Display Size	2.3" diag. 1 : 1	4.5" diag. 5 : 3	?	?	2" diag. 4 : 3
Display Resolution & Type	360 x 400 pixels (~238 ppi) LCD (TFT/TFD)	480 x 800 pixels (~206 ppi) AMOLED	132 x 176 pixels LCD (TFT/TFD)	800 x 352 pixels LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	1,150 mAh	1,800 mAh	750 mAh	1,500 mAh	900 mAh
Processor	?	1.2 GHz Samsung Exynos C210 dual-core	?	332 MHz ARM 11	?
RAM	?	?	?	?	?
Storage	? raw hardware	16 GB	? raw hardware	? raw hardware	142 MB
Main Camera	3 megapixel	8 megapixel	1 megapixel	3 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	1080p HD	?	VGA (640 x 480)	QCIF (176 x 144)
Front Camera	-	2 megapixel	-	-	-
Weight	3.3 oz (94g)	4.55 oz (129g)	3.88 oz (110g)	7.41 oz (210g)	3.24 oz (92g)
Dimensions	4.25" x 1.96" x 0.52" (108 x 50 x 13.2 mm)	5.1" x 2.7" x 0.38" (130 x 69 x 9.6 mm)	4.35" x 2.03" x 0.82" (110 x 52 x 20.8 mm)	5.2" x 2.24" x 0.79" (132 x 57 x 20.1 mm)	3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm)
Form Factor	Slab	Slab	Slab	Clamshell	Clamshell
Platform / OS	BlackBerry OS	Android	(proprietary)	S60 (Symbian)	(proprietary)
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	4G WiMAX: 41 CDMA: 800, 850, 1900 *	GSM: 900, 1800, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSDPA 3.6	WiMAX	GPRS	HSDPA 3.6	HSDPA 3.6
Features
GPS / Location	n/a	n/a	-	n/a	Yes
Ruggedized	-	-	Yes	-	-
Accessibility
Adjustable Text Size	n/a	n/a	-	n/a	-
Hearing Aid Compatible	Yes	Yes	-	-	Yes
Multiple Languages	n/a	n/a	Yes	n/a	Yes
TTY/TDD (Digital)	-	Yes	-	-	Yes
Alerts
Extra Display	-	-	-	Yes	Yes
Ringer Profiles	Yes	-	Yes	Yes	Yes
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
Infrared (IR)	-	-	Yes	Yes	-
Mobile Hotspot	n/a	n/a	-	n/a	-
USB	Yes Micro-USB	Yes Micro-USB	Yes	Yes Mini-USB	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)	-	Yes 802.11 b,g	-
Contacts
Picture ID	n/a	n/a	Yes	n/a	-
Ringer ID	n/a	n/a	Yes	n/a	-
Voice Dialing	n/a	n/a	-	n/a	-
Customization
Custom Graphics	n/a	n/a	Yes	n/a	Yes
Custom Ringtones	n/a	n/a	Yes	n/a	Yes
Real-Music Ringers	n/a	n/a	-	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	-
WAP / Web Browser	n/a	n/a	Yes	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes *	-	-	Yes	-
Touch Screen	-	Yes	-	-	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	-
Messaging
Email Client	n/a	n/a	Yes	n/a	Yes
EMS / Picture Messaging	n/a	n/a	Yes	n/a	-
Instant Messaging	n/a	n/a	-	n/a	Yes
MMS	n/a	n/a	Yes	n/a	Yes
Text Messaging Templates	n/a	n/a	-	n/a	Yes
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	Yes	Yes	-	-	-
Music Player	n/a	n/a	Yes	n/a	-
Photo & Video
DLNA	-	Yes	-	-	-
TV Output	-	Yes	-	-	-
Video Calling	n/a	n/a	-	n/a	-
Productivity
Alarm	n/a	n/a	Yes	n/a	Yes
Calculator	n/a	n/a	Yes	n/a	Yes
Calendar	n/a	n/a	Yes	n/a	Yes
To-Do List	n/a	n/a	Yes	n/a	-
Voice Memo	n/a	n/a	Yes	n/a	Yes
Software
Games	n/a	n/a	Yes	n/a	Yes
Java (J2ME)	n/a	n/a	Yes	n/a	Yes
Voice
Headset Jack (2.5 mm)	n/a	n/a	-	n/a	-
Push-To-Talk	-	-	Yes	Yes *	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	BlackBerry Pearl 3G 9100 / 9105	Samsung Galaxy S II, Epic 4G Touch	Siemens M75	Nokia E90	ZTE Z221
	X >	< X >	< X >	< X >	< X

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


Phone	BlackBerry Pearl 3G 9100 / 9105	Samsung Galaxy S II, Epic 4G Touch	Siemens M75	Nokia E90	ZTE Z221