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Phone	Apple iPhone 4 (GSM)	Cal-Comp EZ	HTC Touch Pro2 (CDMA)	Siemens SL65	Palm Treo 600 (GSM)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.5" diag. 5 : 3	?	3.6" diag. 5 : 3	?	?
Display Resolution & Type	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	128 x 128 pixels LCD (STN)	480 x 800 pixels (~259 ppi) LCD (TFT/TFD)	130 x 130 pixels LCD (TFT/TFD)	160 x 160 pixels LCD (Color)
Display Refresh	60 Hz	?	?	?	?
Battery	?	800 mAh	1,500 mAh	700 mAh	?
Processor	Apple A4	?	528 MHz MSM7600	?	?
RAM	?	?	?	?	?
Storage	32 GB *	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	-	3 megapixel	-	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	?	?	-
Front Camera	Yes	-	-	-	-
Weight	4.8 oz (136g)	2.47 oz (70g)	6.35 oz (180g)	3.49 oz (99g)	5.92 oz (168g)
Dimensions	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4.04" x 1.71" x 0.63" (103 x 43 x 16 mm)	4.57" x 2.33" x 0.68" (116 x 59 x 17.3 mm)	3.55" x 1.87" x 0.82" (90 x 47 x 20.8 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)
Form Factor	Slab	Slab	Slab	Slide	Slab
Platform / OS	iOS	(proprietary)	Windows Mobile Professional	(proprietary)	Palm OS
Network Bands	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900
Data Technology	HSPA 7.2	1xRTT	EVDO rA	GPRS	GPRS
Features
GPS / Location	n/a	Yes	n/a	-	n/a
Accessibility
Adjustable Text Size	n/a	-	n/a	-	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4, T3 (mostly tele-coil compatible)	-	-
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	-	Yes	-	-
Infrared (IR)	-	-	-	Yes	Yes
Mobile Hotspot	n/a	-	n/a	-	n/a
USB	Yes	Yes Mini-USB	Yes	Yes	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes	-	-
Contacts
Picture ID	n/a	-	n/a	Yes	n/a
Ringer ID	n/a	-	n/a	Yes	n/a
Voice Dialing	n/a	-	n/a	-	n/a
Customization
Custom Graphics	n/a	-	n/a	Yes	n/a
Custom Ringtones	n/a	-	n/a	Yes	n/a
Real-Music Ringers	n/a	-	n/a	-	n/a
Data & Network
Data Tethering	n/a	-	n/a	Yes	n/a
WAP / Web Browser	n/a	-	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	-	n/a	Yes	n/a
Side Keys	Yes	-	Yes	Yes	Yes
Stylus	-	-	Yes	-	-
Text Keyboard, Hardware	-	-	Yes	-	Yes
Touch Screen	Yes Capacitive	-	Yes Resistive	-	Yes
Memory
Memory Card Slot	-	-	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	-	n/a	Yes	n/a
Text Messaging Templates	n/a	Yes	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	Yes	-	-
Music Player	n/a	-	n/a	-	n/a
Photo & Video
TV Output	Yes	-	Yes	-	-
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	Yes	n/a	-	n/a
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Apple iPhone 4 (GSM)	Cal-Comp EZ	HTC Touch Pro2 (CDMA)	Siemens SL65	Palm Treo 600 (GSM)
	X >	< X >	< X >	< X >	< X

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


Phone	Apple iPhone 4 (GSM)	Cal-Comp EZ	HTC Touch Pro2 (CDMA)	Siemens SL65	Palm Treo 600 (GSM)