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Phone	Nokia N81	Siemens C56	Samsung Finesse R810	Samsung Vibrant (Galaxy S)	Apple iPhone 3GS
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	?	3.2" diag. 5 : 3	4" diag. 5 : 3	3.5" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	101 x 64 pixels	240 x 400 pixels (~146 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	60 Hz
Battery	1,050 mAh	700 mAh	1,000 mAh	1,500 mAh	?
Processor	369 MHz ARM 11	?	?	1 GHz Samsung Hummingbird Cortex A8	?
RAM	?	?	?	?	?
Storage	8 GB *	? raw hardware	? raw hardware	16 GB	32 GB *
Main Camera	2 megapixel	-	2 megapixel	5 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	VGA (640 x 480)	-	?	720p HD	VGA (640 x 480)
Front Camera	-	-	-	-	-
Weight	4.94 oz (140g)	3 oz (85g)	3.63 oz (103g)	4.16 oz (118g)	4.76 oz (135g)
Dimensions	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)	3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm)	4.56" x 2.29" x 0.49" (116 x 58 x 12.4 mm)	4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm)	4.55" x 2.44" x 0.48" (116 x 62 x 12.3 mm)
Form Factor	Slide	Slab	Slab	Slab	Slab
Platform / OS	S60 (Symbian)	(proprietary)	(proprietary)	Android	iOS
Network Bands	WCDMA: 1 GSM: 850, 900, 1800, 1900	GSM: 850, 1900	CDMA: 850, 1700, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	EDGE	GPRS	EVDO r0	HSPA 7.2	HSPA 7.2
Features
GPS / Location	n/a	Yes	Yes	n/a	n/a
Accessibility
Hearing Aid Compatible	-	-	Yes M4 (very compatible)	Yes M3, T3 (mostly tele-coil compatible)	-
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Alerts
Ringer Profiles	Yes	Yes	-	-	-
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
Mobile Hotspot	n/a	-	-	n/a	n/a
USB	Yes Micro-USB	Yes	Yes	Yes Micro-USB	Yes
Wi-Fi	Yes 802.11 b,g	-	-	Yes	Yes 802.11 b,g
Contacts
Picture ID	n/a	-	Yes	n/a	n/a
Ringer ID	n/a	Yes	-	n/a	n/a
Voice Dialing	n/a	Yes	Yes	n/a	n/a
Customization
Changeable Body Plates	-	Yes	-	-	-
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	-	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	-	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	-	Yes	Yes	Yes
Stylus	-	-	Yes	-	-
Touch Screen	-	-	Yes Resistive	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes *	-	Yes	Yes	-
Messaging
Email Client	n/a	-	Yes	n/a	n/a
EMS / Picture Messaging	n/a	Yes	-	n/a	n/a
Instant Messaging	n/a	-	Yes	n/a	n/a
MMS	n/a	-	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	Yes	n/a	n/a
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	Yes
Music Player	n/a	-	Yes	n/a	n/a
Stereo Speakers	Yes	-	-	-	-
Photo & Video
DLNA	-	-	-	Yes	-
TV Output	-	-	-	-	Yes
Video Calling	n/a	-	-	n/a	n/a
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	-	-	n/a	n/a
Voice Memo	n/a	-	Yes	n/a	n/a
Software
BREW	n/a	-	Yes	n/a	n/a
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	Yes	-	n/a	n/a
Voice
Push-To-Talk	Yes *	-	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Nokia N81	Siemens C56	Samsung Finesse R810	Samsung Vibrant (Galaxy S)	Apple iPhone 3GS
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia N81	Siemens C56	Samsung Finesse R810	Samsung Vibrant (Galaxy S)	Apple iPhone 3GS