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Specifications
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Phone	Casio G'zOne Rock	BlackBerry 8820	HTC SPV C550 (Hurricane)	BlackBerry 7750	ZTE Savvy
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.1" diag. 4 : 3	?	?	?	4" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels (~190 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	240 x 240 pixels LCD (Color)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	1,150 mAh	1,400 mAh	?	?	1,650 mAh
Processor	?	?	?	?	1 GHz Qualcomm MSM8625
RAM	?	?	?	?	768 MB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	4 GB
Main Camera	2 megapixel	-	1 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	?	-	WVGA / 480p
Front Camera	-	-	-	-	-
Weight	4.4 oz (125g)	4.73 oz (134g)	3.77 oz (107g)	5.01 oz (142g)	4.43 oz (126g)
Dimensions	4.1" x 2" x 0.9" (104 x 51 x 22.9 mm)	4.49" x 2.6" x 0.55" (114 x 66 x 14 mm)	4.25" x 1.81" x 0.69" (108 x 46 x 17.5 mm)	4.76" x 3.03" x 0.71" (121 x 77 x 18 mm)	4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Slab
Platform / OS	(proprietary)	BlackBerry OS	Windows Mobile Standard	BlackBerry OS	Android
Network Bands	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	EVDO rA	EDGE	GPRS	1xRTT	EVDO rA
Features
Flashlight	Yes	-	-	-	Yes
GPS / Location	Yes	n/a	n/a	n/a	n/a
Ruggedized	Yes	-	-	-	-
Water-Resistant	Yes	-	-	-	-
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	-	-	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	-	Yes	Yes	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Infrared (IR)	-	-	Yes	-	-
USB	Yes	Yes Mini-USB	Yes	Yes	Yes Micro-USB
Wi-Fi	-	Yes	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	Yes	n/a	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	Yes	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	Yes	-
Touch Screen	-	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	Yes	n/a	n/a	n/a	n/a
Instant Messaging	Yes	n/a	n/a	n/a	n/a
MMS	Yes	n/a	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	Yes	n/a	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	-	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
BREW	Yes	n/a	n/a	n/a	n/a
Games	Yes	n/a	n/a	n/a	n/a
Java (J2ME)	-	n/a	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Push-To-Talk	Yes	Yes *	-	-	-
Speaker Phone	Yes	Yes	Yes	-	Yes
	* Some versions only
	Casio G'zOne Rock	BlackBerry 8820	HTC SPV C550 (Hurricane)	BlackBerry 7750	ZTE Savvy
	X >	< X >	< X >	< X >	< X

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


Phone	Casio G'zOne Rock	BlackBerry 8820	HTC SPV C550 (Hurricane)	BlackBerry 7750	ZTE Savvy