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Phone	BlackBerry 7750	Samsung Heat	Motorola Sidekick Slide	Sanyo MM-5600	Nokia Lumia 521 / 520
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	?	?	4" diag. 5 : 3
Display Resolution & Type	240 x 240 pixels LCD (Color)	240 x 320 pixels LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	?	800 mAh	?	1,000 mAh	1,430 mAh
Processor	?	?	225 MHz TI OMAP 850	?	1 GHz Qualcomm Snapdragon S4 MSM8270
RAM	?	?	?	?	512 MB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	-	1 megapixel	1 megapixel	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	-	?	720p HD
Front Camera	-	-	-	-	-
Weight	5.01 oz (142g)	3.17 oz (90g)	5.3 oz (150g)	4.52 oz (128g)	4.39 oz (124g)
Dimensions	4.76" x 3.03" x 0.71" (121 x 77 x 18 mm)	3.6" x 1.8" x 0.6" (91 x 46 x 15.2 mm)	4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm)	3.66" x 1.91" x 1.04" (93 x 49 x 26.4 mm)	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)
Form Factor	Slab	Slide	Slide	Clamshell	Slab
Platform / OS	BlackBerry OS	(proprietary)	(proprietary)	(proprietary)	Windows
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	1xRTT	EVDO r0	EDGE	1xRTT	HSPA+ 21
Features
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	Yes	-	Yes	n/a
Accessibility
Adjustable Text Size	n/a	Yes	Yes	-	n/a
Hearing Aid Compatible	-	Yes M4 (very compatible)	-	Yes M4 (very compatible)	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	-	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	-	-	-	Yes	-
Ringer Profiles	Yes	-	Yes	-	-
Connectivity
Bluetooth	-	Yes	Yes	-	Yes
Mobile Hotspot	n/a	-	-	-	n/a
USB	Yes	Yes	Yes	Yes	Yes
Wi-Fi	-	-	-	-	Yes
Contacts
Picture ID	n/a	Yes	Yes	Yes	n/a
Ringer ID	n/a	Yes	Yes	Yes	n/a
Voice Dialing	n/a	-	-	Yes	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	Yes	Yes	Yes	n/a
Data & Network
Data Tethering	n/a	-	-	-	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	-	Yes	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
Messaging
Email Client	n/a	-	Yes	-	n/a
Instant Messaging	n/a	-	Yes	-	n/a
MMS	n/a	Yes	Yes	-	n/a
Text Messaging Templates	n/a	Yes	-	-	n/a
Music
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	n/a	Yes	Yes	Yes	n/a
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	-	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	Yes	Yes	Yes	n/a
Voice Memo	n/a	Yes	-	Yes	n/a
Software
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	-	Yes	Yes	n/a
Voice
Call Screening	-	-	-	Yes	-
Headset Jack (2.5 mm)	n/a	-	Yes	Yes	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	-	Yes	Yes	Yes	Yes
	BlackBerry 7750	Samsung Heat	Motorola Sidekick Slide	Sanyo MM-5600	Nokia Lumia 521 / 520
	X >	< X >	< X >	< X >	< X

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


Phone	BlackBerry 7750	Samsung Heat	Motorola Sidekick Slide	Sanyo MM-5600	Nokia Lumia 521 / 520