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Phone	Samsung SGH-X640	Motorola i576 / i576s	Samsung SPH-A520	Kyocera Echo	BlackBerry Storm2 9550
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	?	3.5" diag. 5 : 3	3.3" diag. 4 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	? LCD (STN)	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	360 x 480 pixels (~185 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	800 mAh	?	?	1,370 mAh	1,400 mAh
Processor	?	?	?	1 GHz Qualcomm Snapdragon S1 QSD8650	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	-	-	5 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	-	720p HD	?
Front Camera	-	-	-	-	-
Weight	3 oz (85g)	4.2 oz (119g)	3.6 oz (102g)	6.8 oz (193g)	5.64 oz (160g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.3" x 1.8" x 1" (109 x 46 x 25.4 mm)	3.46" x 1.83" x 0.91" (88 x 46 x 23.1 mm)	4.53" x 2.22" x 0.68" (115 x 56 x 17.2 mm)	4.43" x 2.45" x 0.55" (113 x 62 x 14 mm)
Form Factor	Clamshell	Clamshell	Clamshell	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	(proprietary)	Android	BlackBerry OS
Network Bands	GSM: 900, 1800, 1900	iDEN: 800	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	GPRS	WiDEN	1xRTT	EVDO rA	EVDO rA
Features
GPS / Location	-	Yes	Yes	n/a	n/a
Ruggedized	-	Yes	-	-	-
Accessibility
Adjustable Text Size	-	Yes	-	n/a	n/a
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	Yes	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	-	Yes	Yes
Alerts
Extra Display	-	Yes	Yes	-	-
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	-	Yes	Yes
Mobile Hotspot	-	-	-	n/a	n/a
USB	-	Yes Micro-USB	-	Yes	Yes
Wi-Fi	-	-	-	Yes 802.11 b,g	Yes 802.11 b,g
Contacts
Picture ID	Yes	-	Yes	n/a	n/a
Ringer ID	Yes	Yes	Yes	n/a	n/a
Voice Dialing	-	Yes	Yes	n/a	n/a
Customization
Custom Graphics	Yes	Yes	Yes	n/a	n/a
Custom Ringtones	Yes	Yes	Yes	n/a	n/a
Real-Music Ringers	-	-	-	n/a	n/a
Data & Network
Data Tethering	-	Yes	Yes	n/a	n/a
WAP / Web Browser	Yes	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	-	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	-	-	Yes	Yes
Messaging
Email Client	-	-	-	n/a	n/a
EMS / Picture Messaging	Yes	-	-	n/a	n/a
Instant Messaging	-	-	-	n/a	n/a
MMS	Yes	Yes	-	n/a	n/a
Text Messaging Templates	Yes	Yes	-	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	-	-	-	n/a	n/a
Productivity
Alarm	Yes	-	Yes	n/a	n/a
Calculator	Yes	-	Yes	n/a	n/a
Calendar	Yes	Yes	Yes	n/a	n/a
To-Do List	Yes	-	Yes	n/a	n/a
Voice Memo	Yes	Yes	Yes	n/a	n/a
Software
Games	Yes	Yes	Yes	n/a	n/a
Java (J2ME)	Yes	Yes	-	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	Yes	Yes	n/a	n/a
Push-To-Talk	-	Yes	-	-	-
Speaker Phone	Yes	Yes	-	Yes	Yes
	Samsung SGH-X640	Motorola i576 / i576s	Samsung SPH-A520	Kyocera Echo	BlackBerry Storm2 9550
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Motorola i576 / i576s	Samsung SPH-A520	Kyocera Echo	BlackBerry Storm2 9550