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Phone	Nokia 6555	Samsung Trance SCH-U490	Samsung Nexus S 4G	Motorola i560	Palm Treo 600 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2" diag. 4 : 3	2.1" diag. 4 : 3	4" diag. 5 : 3	?	?
Display Resolution & Type	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	130 x 130 pixels LCD (STN)	160 x 160 pixels LCD (Color)
Display Refresh	?	?	60 Hz	?	?
Battery	1,020 mAh	?	1,500 mAh	750 mAh	?
Processor	?	?	1 GHz Samsung Hummingbird Cortex A8	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	16 GB	? raw hardware	? raw hardware
Main Camera	1 megapixel	1 megapixel	5 megapixel	-	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	-	WVGA / 480p	-	-
Front Camera	-	-	Yes	-	-
Weight	3.42 oz (97g)	3.53 oz (100g)	4.62 oz (131g)	4.6 oz (130g)	6.2 oz (176g)
Dimensions	3.92" x 1.74" x 0.77" (100 x 44 x 19.6 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)	4.88" x 2.48" x 0.44" (124 x 63 x 11.2 mm)	3.5" x 2.1" x 1.14" (89 x 53 x 29 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)
Form Factor	Clamshell	Slide	Slab	Clamshell	Slab
Platform / OS	(proprietary)	(proprietary)	Android	(proprietary)	Palm OS
Network Bands	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	4G WiMAX: 41 CDMA: 850, 1900	iDEN: 800	CDMA: 850, 1900
Data Technology	WCDMA (UMTS)	1xRTT	WiMAX	-	1xRTT
Features
GPS / Location	-	Yes	n/a	Yes	n/a
Ruggedized	-	-	-	Yes	-
Accessibility
Adjustable Text Size	Yes	Yes	n/a	-	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	Yes M4 (very compatible)	Yes M3 (mostly compatible)	-
Multiple Languages	Yes	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	Yes	-	-	Yes	-
Ringer Profiles	Yes	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	-
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	-	-	n/a	-	n/a
NFC	-	-	Yes	-	-
USB	Yes Micro-USB	Yes	Yes Micro-USB	-	Yes
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	-	-
Contacts
Picture ID	Yes	Yes	n/a	-	n/a
Ringer ID	Yes	Yes	n/a	Yes	n/a
Voice Dialing	Yes	Yes	n/a	Yes	n/a
Customization
Custom Graphics	Yes	Yes	n/a	Yes	n/a
Custom Ringtones	Yes	Yes	n/a	Yes	n/a
Real-Music Ringers	Yes	Yes	n/a	-	n/a
Data & Network
Data Tethering	Yes	Yes	n/a	Yes	n/a
WAP / Web Browser	Yes	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	-	Yes Capacitive	-	Yes
Memory
Memory Card Slot	Yes	Yes	-	-	Yes
Messaging
Email Client	Yes	-	n/a	-	n/a
Instant Messaging	Yes	-	n/a	-	n/a
MMS	Yes	Yes	n/a	Yes	n/a
Text Messaging Templates	Yes	Yes	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	Yes	-	-
Music Player	Yes	Yes	n/a	-	n/a
Productivity
Alarm	Yes	Yes	n/a	-	n/a
Calculator	Yes	Yes	n/a	-	n/a
Calendar	Yes	Yes	n/a	Yes	n/a
To-Do List	Yes	-	n/a	-	n/a
Voice Memo	Yes	Yes	n/a	Yes	n/a
Software
BREW	-	Yes	n/a	-	n/a
Games	Yes	Yes	n/a	Yes	n/a
Java (J2ME)	Yes	-	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	Yes	-	n/a	Yes	n/a
Push-To-Talk	Yes *	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Nokia 6555	Samsung Trance SCH-U490	Samsung Nexus S 4G	Motorola i560	Palm Treo 600 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia 6555	Samsung Trance SCH-U490	Samsung Nexus S 4G	Motorola i560	Palm Treo 600 (CDMA)