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Phone	Samsung SGH-X640	Ericsson T66	Sharp Sidekick LX 2007	ZTE Blade Vantage	Palm Treo 600 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	3" diag. 5 : 3	5" diag. 16 : 9	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	?	400 x 240 pixels (~155 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	160 x 160 pixels LCD (Color)
Display Refresh	?	?	?	60 Hz	?
Battery	800 mAh	?	1,540 mAh	2,500 mAh	?
Processor	?	?	200 MHz OMAP 331	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	?
RAM	?	?	?	2 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	16 GB	? raw hardware
Main Camera	Yes	-	1 megapixel	8 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	?	720p HD	-
Front Camera	-	-	-	2 megapixel	-
Weight	3 oz (85g)	2.08 oz (59g)	5.7 oz (162g)	5.29 oz (150g)	6.2 oz (176g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm)	5.12" x 2.36" x 0.7" (130 x 60 x 17.9 mm)	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)
Form Factor	Clamshell	Slab	Swivel	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	(proprietary)	Android	Palm OS
Network Bands	GSM: 900, 1800, 1900	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 13	CDMA: 850, 1900
Data Technology	GPRS	-	EDGE	LTE (Cat 4)	1xRTT
Features
Flashlight	-	-	Yes	Yes	-
GPS / Location	-	-	-	n/a	n/a
Accessibility
Adjustable Text Size	-	-	Yes	n/a	n/a
Hearing Aid Compatible	-	-	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)	-
Multiple Languages	Yes	Yes	-	n/a	n/a
TTY/TDD (Digital)	-	-	-	Yes	Yes
Alerts
Ringer Profiles	-	Yes	Yes	-	-
Connectivity
Bluetooth	-	-	Yes	Yes	-
Infrared (IR)	-	-	-	-	Yes
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	n/a
Customization
Custom Graphics	Yes	Yes	Yes	n/a	n/a
Custom Ringtones	Yes	Yes	Yes	n/a	n/a
Real-Music Ringers	-	-	Yes	n/a	n/a
Data & Network
Data Tethering	-	-	-	n/a	n/a
WAP / Web Browser	Yes	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	-	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	Yes
Touch Screen	-	-	-	Yes Capacitive	Yes
Memory
Memory Card Slot	-	-	Yes	Yes	Yes
Messaging
Email Client	-	-	Yes	n/a	n/a
EMS / Picture Messaging	Yes	Yes	-	n/a	n/a
Instant Messaging	-	-	Yes	n/a	n/a
MMS	Yes	-	Yes	n/a	n/a
Text Messaging Templates	Yes	Yes	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	-
Music Player	-	-	Yes	n/a	n/a
Productivity
Alarm	Yes	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	Yes	n/a	n/a
Voice Memo	Yes	-	-	n/a	n/a
Software
Games	Yes	Yes	Yes	n/a	n/a
Java (J2ME)	Yes	-	Yes	n/a	n/a
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	Yes	-	-	n/a	n/a
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-X640	Ericsson T66	Sharp Sidekick LX 2007	ZTE Blade Vantage	Palm Treo 600 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Ericsson T66	Sharp Sidekick LX 2007	ZTE Blade Vantage	Palm Treo 600 (CDMA)