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Phone	HTC Touch Pro2 (GSM) / Tilt 2	Samsung SGH-A157	HTC Droid Eris	Sony Ericsson W600i / W550i	Palm Treo 600 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.6" diag. 5 : 3	1.8" diag. 4 : 3	3.2" diag. 5 : 3	?	?
Display Resolution & Type	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	160 x 160 pixels LCD (Color)
Display Refresh	?	?	60 Hz	?	?
Battery	1,500 mAh	800 mAh	1,300 mAh	?	?
Processor	528 MHz Qualcomm MSM7200A	?	528 MHz MSM7600	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	256 MB	? raw hardware	? raw hardware	? raw hardware
Main Camera	3 megapixel	-	5 megapixel	1 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	CIF (352 x 288)	?	-
Front Camera	-	-	-	-	-
Weight	6.61 oz (187g)	2.99 oz (85g)	4.43 oz (126g)	4.2 oz (119g)	6.2 oz (176g)
Dimensions	4.59" x 2.36" x 0.68" (117 x 60 x 17.3 mm)	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	3.66" x 1.83" x 0.89" (93 x 46 x 22.6 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)
Form Factor	Slab	Clamshell	Slab	Swivel	Slab
Platform / OS	Windows Mobile Professional	(proprietary)	Android	(proprietary)	Palm OS
Network Bands	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 *	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900
Data Technology	HSPA 7.2	?	EVDO rA	EDGE	1xRTT
Features
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	Yes	n/a	-	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	-	n/a
Hearing Aid Compatible	-	Yes M4 (very compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	-
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	-
Infrared (IR)	-	-	-	Yes	Yes
USB	Yes	Yes Micro-USB	Yes Mini-USB	Yes	Yes
Wi-Fi	Yes 802.11 b,g	-	Yes 802.11 b,g	-	-
Contacts
Picture ID	n/a	Yes	n/a	Yes	n/a
Ringer ID	n/a	Yes	n/a	Yes	n/a
Voice Dialing	n/a	-	n/a	Yes	n/a
Customization
Changeable Body Plates	-	-	-	Yes	-
Custom Graphics	n/a	Yes	n/a	Yes	n/a
Custom Ringtones	n/a	Yes	n/a	Yes	n/a
Real-Music Ringers	n/a	Yes	n/a	-	n/a
Data & Network
Data Tethering	n/a	-	n/a	Yes	n/a
WAP / Web Browser	n/a	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	Yes	n/a
Side Keys	Yes	-	Yes	Yes	Yes
Stylus	Yes	-	-	-	-
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	Yes	-	Yes Capacitive	-	Yes
Memory
Memory Card Slot	Yes	-	Yes	-	Yes
Messaging
Email Client	n/a	-	n/a	Yes	n/a
EMS / Picture Messaging	n/a	-	n/a	Yes	n/a
Instant Messaging	n/a	-	n/a	-	n/a
MMS	n/a	Yes	n/a	Yes	n/a
Text Messaging Templates	n/a	Yes	n/a	Yes	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	-	-	Yes	-	-
Music Player	n/a	-	n/a	Yes	n/a
Photo & Video
TV Output	Yes	-	-	-	-
Video Calling	n/a	-	n/a	-	n/a
Productivity
Alarm	n/a	Yes	n/a	Yes	n/a
Calculator	n/a	Yes	n/a	Yes	n/a
Calendar	n/a	Yes	n/a	Yes	n/a
To-Do List	n/a	Yes	n/a	Yes	n/a
Voice Memo	n/a	Yes	n/a	Yes	n/a
Software
Games	n/a	-	n/a	Yes	n/a
Java (J2ME)	n/a	-	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	-	n/a	-	n/a
Push-To-Talk	Yes *	-	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	HTC Touch Pro2 (GSM) / Tilt 2	Samsung SGH-A157	HTC Droid Eris	Sony Ericsson W600i / W550i	Palm Treo 600 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	HTC Touch Pro2 (GSM) / Tilt 2	Samsung SGH-A157	HTC Droid Eris	Sony Ericsson W600i / W550i	Palm Treo 600 (CDMA)