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Phone	Samsung M520	Nokia N78	BlackBerry Storm2 9550	Motorola Sidekick Slide	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	2.4" diag. 4 : 3	3.3" diag. 4 : 3	?	4" diag. 5 : 3
Display Resolution & Type	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	360 x 480 pixels (~185 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	1,200 mAh	1,400 mAh	?	1,650 mAh
Processor	?	369 MHz ARM 11	?	225 MHz TI OMAP 850	1 GHz Qualcomm MSM8625
RAM	?	?	?	?	768 MB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	4 GB
Main Camera	1 megapixel	3 megapixel	3 megapixel	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	VGA (640 x 480)	?	-	WVGA / 480p
Front Camera	-	-	-	-	-
Weight	2.75 oz (78g)	3.59 oz (102g)	5.64 oz (160g)	5.3 oz (150g)	4.43 oz (126g)
Dimensions	4.01" x 2.04" x 0.5" (102 x 52 x 12.7 mm)	4.45" x 1.93" x 0.59" (113 x 49 x 15.1 mm)	4.43" x 2.45" x 0.55" (113 x 62 x 14 mm)	4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm)	4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm)
Form Factor	Slide	Slab	Slab	Slide	Slab
Platform / OS	(proprietary)	S60 (Symbian)	BlackBerry OS	(proprietary)	Android
Network Bands	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	EVDO r0	HSDPA 3.6	EVDO rA	EDGE	EVDO rA
Features
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	n/a	-	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	Yes	n/a
Hearing Aid Compatible	Yes	-	Yes	-	Yes
Multiple Languages	Yes	n/a	n/a	-	n/a
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Ringer Profiles	-	Yes	Yes	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
USB	Yes	Yes Micro-USB	Yes	Yes	Yes Micro-USB
Wi-Fi	-	Yes 802.11 b,g	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)
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	-	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	-
Touch Screen	-	-	Yes	-	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	-	n/a	n/a	Yes	n/a
Instant Messaging	-	n/a	n/a	Yes	n/a
MMS	-	n/a	n/a	Yes	n/a
Text Messaging Templates	Yes	n/a	n/a	-	n/a
Music
FM Radio	-	Yes	-	-	-
FM Transmitter	-	n/a	n/a	-	n/a
Headphone Jack (3.5mm)	-	Yes	Yes	-	Yes
Music Player	Yes	n/a	n/a	Yes	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
DLNA	-	-	-	-	Yes
TV Output	-	Yes	-	-	-
Video Calling	-	n/a	n/a	-	n/a
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	Yes	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)	-	n/a	n/a	Yes	n/a
Push-To-Talk	-	Yes *	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung M520	Nokia N78	BlackBerry Storm2 9550	Motorola Sidekick Slide	ZTE Savvy
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung M520	Nokia N78	BlackBerry Storm2 9550	Motorola Sidekick Slide	ZTE Savvy