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Phone	Motorola Droid	Samsung Galaxy S II / SGH-i777	Sony Ericsson Z520 / Z525	Pantech Duo C810	Samsung SGH-A717
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.7" diag. 16 : 9	4.3" diag. 5 : 3	?	2.2" diag. 4 : 3	?
Display Resolution & Type	480 x 854 pixels (~268 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	?	?	?
Battery	1,400 mAh	1,650 mAh	?	1,320 mAh	?
Processor	550 MHz TI OMAP 3430 (ARM Cortex A8)	1.2 GHz Samsung Exynos dual-core	?	ARM 920t PXA27x	?
RAM	?	?	?	?	?
Storage	? raw hardware	16 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	8 megapixel	Yes	1 megapixel	2 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	WVGA / 480p	1080p HD	?	QVGA (320 x 240)	QCIF (176 x 144)
Front Camera	-	2 megapixel	-	-	-
Weight	5.99 oz (170g)	4.3 oz (122g)	3.46 oz (98g)	3.88 oz (110g)	3.31 oz (94g)
Dimensions	4.55" x 2.35" x 0.55" (116 x 60 x 14 mm)	4.96" x 2.6" x 0.35" (126 x 66 x 8.9 mm)	3.27" x 1.81" x 0.94" (83 x 46 x 23.9 mm)	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)	4.07" x 2.15" x 0.55" (103 x 55 x 14 mm)
Form Factor	Slab	Slab	Clamshell	Slide	Clamshell
Platform / OS	Android	Android	(proprietary)	Windows Mobile Standard	(proprietary)
Network Bands	CDMA: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	EVDO rA	HSPA+ 21	GPRS	HSDPA 1.8	HSDPA 1.8
Features
GPS / Location	n/a	n/a	-	n/a	-
Accessibility
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	-	-	Yes M3 (mostly compatible)
Multiple Languages	n/a	n/a	Yes	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	-	-	Yes	-	Yes
Ringer Profiles	-	-	Yes	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	Yes	-	-
Mobile Hotspot	n/a	n/a	-	n/a	-
NFC	-	Yes	-	-	-
USB	Yes Micro-USB	Yes Micro-USB	Yes	Yes	Yes
Wi-Fi	Yes 802.11 b,g	Yes 4 (802.11 a,b,g,n)	-	-	-
Contacts
Picture ID	n/a	n/a	Yes	n/a	Yes
Ringer ID	n/a	n/a	Yes	n/a	Yes
Voice Dialing	n/a	n/a	Yes	n/a	-
Customization
Changeable Body Plates	-	-	Yes	-	-
Custom Graphics	n/a	n/a	Yes	n/a	Yes
Custom Ringtones	n/a	n/a	Yes	n/a	Yes
Real-Music Ringers	n/a	n/a	Yes	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	Yes
External Antenna Jack	n/a	n/a	-	n/a	-
WAP / Web Browser	n/a	n/a	Yes	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	Yes	-
Touch Screen	Yes Capacitive	Yes Capacitive	-	-	-
Memory
Memory Card Slot	Yes	Yes	-	Yes	Yes
Messaging
Email Client	n/a	n/a	Yes	n/a	Yes
EMS / Picture Messaging	n/a	n/a	Yes	n/a	-
Instant Messaging	n/a	n/a	-	n/a	Yes
MMS	n/a	n/a	Yes	n/a	Yes
Text Messaging Templates	n/a	n/a	Yes	n/a	Yes
Music
Headphone Jack (3.5mm)	Yes	Yes	-	-	-
Music Player	n/a	n/a	-	n/a	Yes
Photo & Video
DLNA	-	Yes	-	-	-
TV Output	-	Yes	-	-	-
Productivity
Alarm	n/a	n/a	Yes	n/a	Yes
Calculator	n/a	n/a	Yes	n/a	Yes
Calendar	n/a	n/a	Yes	n/a	Yes
To-Do List	n/a	n/a	Yes	n/a	Yes
Voice Memo	n/a	n/a	Yes	n/a	Yes
Software
Games	n/a	n/a	Yes	n/a	Yes
Java (J2ME)	n/a	n/a	Yes	n/a	Yes
Voice
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Motorola Droid	Samsung Galaxy S II / SGH-i777	Sony Ericsson Z520 / Z525	Pantech Duo C810	Samsung SGH-A717
	X >	< X >	< X >	< X >	< X

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


Phone	Motorola Droid	Samsung Galaxy S II / SGH-i777	Sony Ericsson Z520 / Z525	Pantech Duo C810	Samsung SGH-A717