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Specifications
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Phone	Samsung Zeal / Alias 2 SCH-U750	Nokia Lumia 521 / 520	Samsung SCH-A645	LG PM-225	Motorola Defy (2010)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.6" diag. 4 : 3	4" diag. 5 : 3	?	?	3.6" diag. 16 : 9
Display Resolution & Type	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	128 x 160 pixels LCD (STN)	480 x 854 pixels (~272 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	880 mAh	1,430 mAh	1,000 mAh	1,000 mAh	1,540 mAh
Processor	?	1 GHz Qualcomm Snapdragon S4 MSM8270	?	?	800 MHz TI OMAP3610
RAM	?	512 MB	?	?	?
Storage	? raw hardware	8 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	2 megapixel	5 megapixel	-	Yes	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	720p HD	-	-	?
Front Camera	-	-	-	-	-
Weight	4.34 oz (123g)	4.39 oz (124g)	3.2 oz (91g)	3.35 oz (95g)	4.16 oz (118g)
Dimensions	4.01" x 2.04" x 0.67" (102 x 52 x 17 mm)	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)	3.54" x 1.79" x 0.94" (90 x 45 x 23.9 mm)	3.53" x 1.76" x 0.93" (90 x 45 x 23.6 mm)	4.21" x 2.32" x 0.53" (107 x 59 x 13.4 mm)
Form Factor	Clamshell	Slab	Clamshell	Clamshell	Slab
Platform / OS	(proprietary)	Windows	(proprietary)	(proprietary)	Android
Network Bands	CDMA: 850, 1900	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	EVDO r0	HSPA+ 21	1xRTT	1xRTT	HSPA 7.2
Features
GPS / Location	Yes	n/a	Yes	Yes	n/a
Ruggedized	-	-	-	-	Yes
Accessibility
Adjustable Text Size	Yes	n/a	-	-	n/a
Hearing Aid Compatible	Yes M4 (very compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	-	-
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	Yes	Yes	-
Connectivity
Bluetooth	Yes	Yes	-	-	Yes
Mobile Hotspot	-	n/a	-	-	n/a
USB	Yes	Yes	-	Yes	Yes Micro-USB
Wi-Fi	-	Yes	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	Yes	Yes	n/a
Ringer ID	Yes	n/a	-	Yes	n/a
Voice Dialing	Yes	n/a	Yes	Yes	n/a
Customization
Custom Graphics	Yes	n/a	Yes	Yes	n/a
Custom Ringtones	Yes	n/a	Yes	Yes	n/a
Real-Music Ringers	Yes	n/a	-	-	n/a
Data & Network
Data Tethering	Yes	n/a	-	-	n/a
WAP / Web Browser	Yes	n/a	Yes *	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	-	Yes Capacitive	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	-	-	Yes
Messaging
Email Client	Yes	n/a	-	-	n/a
EMS / Picture Messaging	-	n/a	Yes	-	n/a
Instant Messaging	Yes	n/a	-	-	n/a
MMS	Yes	n/a	-	-	n/a
Text Messaging Templates	Yes	n/a	Yes	-	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	Yes	n/a	-	-	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	-	n/a	Yes	-	n/a
Voice Memo	Yes	n/a	Yes	Yes	n/a
Software
BREW	Yes	n/a	Yes *	-	n/a
Games	Yes	n/a	Yes *	Yes	n/a
Java (J2ME)	-	n/a	-	Yes	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	Yes	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung Zeal / Alias 2 SCH-U750	Nokia Lumia 521 / 520	Samsung SCH-A645	LG PM-225	Motorola Defy (2010)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Zeal / Alias 2 SCH-U750	Nokia Lumia 521 / 520	Samsung SCH-A645	LG PM-225	Motorola Defy (2010)