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Phone	Samsung Sidekick 4G	Apple iPhone 4 (GSM)	Samsung Trance SCH-U490	Samsung Omnia i910	Samsung SPH-i550
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Not yet released
Display Size	3.5" diag. 5 : 3	3.5" diag. 5 : 3	2.1" diag. 4 : 3	3.2" diag. 5 : 3	?
Display Resolution & Type	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	240 x 400 pixels (~146 ppi) LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	?	?	?
Battery	?	?	?	1,440 mAh	?
Processor	1 GHz Samsung Hummingbird Cortex A8	Apple A4	?	624 MHz Marvell PXA312	200 MHz Motorola MX-1
RAM	?	?	?	?	?
Storage	? raw hardware	32 GB *	? raw hardware	8 GB	? raw hardware
Main Camera	3 megapixel	5 megapixel	1 megapixel	5 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	WVGA / 480p	720p HD	-	VGA (640 x 480)	?
Front Camera	Yes	Yes	-	-	-
Weight	5.7 oz (162g)	4.8 oz (136g)	3.53 oz (100g)	4.16 oz (118g)	?
Dimensions	5" x 2.42" x 0.6" (127 x 61 x 15.2 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)	4.4" x 2.24" x 0.51" (112 x 57 x 13 mm)	3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm)
Form Factor	Slide	Slab	Slide	Slab	Clamshell
Platform / OS	Android	iOS	(proprietary)	Windows Mobile Professional	Palm OS
Network Bands	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850
Data Technology	HSPA+ 21	HSPA 7.2	1xRTT	EVDO rA	1xRTT
Features
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	n/a	n/a	Yes	n/a	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	Yes M4 (very compatible)	-
Multiple Languages	n/a	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	-
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	n/a	n/a	-	n/a	n/a
USB	Yes Micro-USB	Yes	Yes	Yes	-
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-	Yes 802.11 b,g	-
Contacts
Picture ID	n/a	n/a	Yes	n/a	n/a
Ringer ID	n/a	n/a	Yes	n/a	n/a
Voice Dialing	n/a	n/a	Yes	n/a	n/a
Customization
Custom Graphics	n/a	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	n/a
WAP / Web Browser	n/a	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Stylus	-	-	-	Yes	-
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	Yes	Yes Capacitive	-	Yes	Yes
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	-	n/a	n/a
Instant Messaging	n/a	n/a	-	n/a	n/a
MMS	n/a	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	n/a	Yes	n/a	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	Yes	Yes	Yes	-	-
Music Player	n/a	n/a	Yes	n/a	n/a
Photo & Video
DLNA	Yes	-	-	Yes	-
TV Output	-	Yes	-	Yes	-
Productivity
Alarm	n/a	n/a	Yes	n/a	n/a
Calculator	n/a	n/a	Yes	n/a	n/a
Calendar	n/a	n/a	Yes	n/a	n/a
To-Do List	n/a	n/a	-	n/a	n/a
Voice Memo	n/a	n/a	Yes	n/a	n/a
Software
BREW	n/a	n/a	Yes	n/a	n/a
Games	n/a	n/a	Yes	n/a	n/a
Voice
Headset Jack (2.5 mm)	n/a	n/a	-	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	-
	* Some versions only
	Samsung Sidekick 4G	Apple iPhone 4 (GSM)	Samsung Trance SCH-U490	Samsung Omnia i910	Samsung SPH-i550
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Sidekick 4G	Apple iPhone 4 (GSM)	Samsung Trance SCH-U490	Samsung Omnia i910	Samsung SPH-i550