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Phone	Samsung Galaxy S II / SGH-i777	Palm Treo 750	Siemens CT66 / C66 / C65 / C71 / C70	Pantech Matrix Pro C820
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	4.3" diag. 5 : 3	?	?	2.4" diag. 4 : 3
Display Resolution & Type	480 x 800 pixels (~217 ppi) AMOLED	240 x 240 pixels LCD (TFT/TFD)	130 x 130 pixels LCD (Color)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?
Battery	1,650 mAh	1,200 mAh	600 mAh	1,320 mAh
Processor	1.2 GHz Samsung Exynos dual-core	300 MHz Samsung	?	528 MHz ARM 11
RAM	?	?	?	?
Storage	16 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	8 megapixel	1 megapixel	Yes	2 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	1080p HD	CIF (352 x 288)	-	QCIF (176 x 144)
Front Camera	2 megapixel	-	-	-
Weight	4.3 oz (122g)	5.4 oz (153g)	3 oz (85g)	5.34 oz (151g)
Dimensions	4.96" x 2.6" x 0.35" (126 x 66 x 8.9 mm)	4.37" x 2.28" x 0.87" (111 x 58 x 22.1 mm)	4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm)	4.2" x 2" x 0.9" (107 x 51 x 22.9 mm)
Form Factor	Slab	Slab	Slab	Slide
Platform / OS	Android	Windows Mobile Professional	(proprietary)	Windows Mobile Standard
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 1800, 1900 *	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSPA+ 21	WCDMA (UMTS)	GPRS	HSDPA 3.6
Features
GPS / Location	n/a	n/a	-	n/a
Accessibility
Hearing Aid Compatible	Yes M3 (mostly compatible)	-	-	-
Multiple Languages	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes
Alerts
Ringer Profiles	-	-	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	-	Yes
Infrared (IR)	-	Yes	Yes	-
Mobile Hotspot	n/a	n/a	-	n/a
NFC	Yes	-	-	-
USB	Yes Micro-USB	Yes	Yes	Yes
Wi-Fi	Yes 4 (802.11 a,b,g,n)	-	-	-
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
Changeable Body Plates	-	-	Yes	-
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	-	n/a
External Antenna Jack	n/a	n/a	-	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
Stylus	-	Yes	-	-
Text Keyboard, Hardware	-	Yes	-	Yes
Touch Screen	Yes Capacitive	Yes Resistive	-	-
Memory
Memory Card Slot	Yes	Yes	-	Yes
Messaging
Email Client	n/a	n/a	-	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	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	-
Music Player	n/a	n/a	-	n/a
Photo & Video
DLNA	Yes	-	-	-
TV Output	Yes	-	-	-
Productivity
Alarm	n/a	n/a	Yes	n/a
Calculator	n/a	n/a	Yes	n/a
Calendar	n/a	n/a	Yes	n/a
To-Do List	n/a	n/a	Yes	n/a
Voice Memo	n/a	n/a	Yes	n/a
Software
Games	n/a	n/a	Yes	n/a
Java (J2ME)	n/a	n/a	Yes	n/a
Voice
Call Screening	-	-	Yes	-
Headset Jack (2.5 mm)	n/a	n/a	-	n/a
Push-To-Talk	-	-	Yes *	-
Speaker Phone	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung Galaxy S II / SGH-i777	Palm Treo 750	Siemens CT66 / C66 / C65 / C71 / C70	Pantech Matrix Pro C820
	X >	< X >	< X >	< X

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


Phone	Samsung Galaxy S II / SGH-i777	Palm Treo 750	Siemens CT66 / C66 / C65 / C71 / C70	Pantech Matrix Pro C820