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Phone	Samsung MM-A900 / SPH-A900 / Ace	Pantech Duo C810	Nokia Lumia 810	Apple iPhone 4 (GSM)	Motorola RAZR V3
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.2" diag. 4 : 3	4.3" diag. 5 : 3	3.5" diag. 5 : 3	?
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	?	1,320 mAh	1,800 mAh	?	680 mAh
Processor	?	ARM 920t PXA27x	1.5 GHz Qualcomm Snapdragon	Apple A4	?
RAM	?	?	1 GB	?	?
Storage	? raw hardware	? raw hardware	8 GB	32 GB *	? raw hardware
Main Camera	1 megapixel	1 megapixel	8 megapixel	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QVGA (320 x 240)	1080p HD	720p HD	?
Front Camera	-	-	1 megapixel	Yes	-
Weight	3.9 oz (111g)	3.88 oz (110g)	5.11 oz (145g)	4.8 oz (136g)	3.42 oz (97g)
Dimensions	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	3.86" x 2.09" x 0.54" (98 x 53 x 13.7 mm)
Form Factor	Clamshell	Slide	Slab	Slab	Clamshell
Platform / OS	(proprietary)	Windows Mobile Standard	Windows	iOS	(proprietary)
Network Bands	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900
Data Technology	EVDO r0	HSDPA 1.8	HSPA+ 42	HSPA 7.2	GPRS
Features
GPS / Location	Yes	n/a	n/a	n/a	-
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	-
Hearing Aid Compatible	-	-	Yes M3, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	Yes	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	-	-	Yes
Ringer Profiles	-	Yes	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	n/a	-
NFC	-	-	Yes	-	-
USB	Yes	Yes	Yes Micro-USB	Yes	Yes Mini-USB
Wi-Fi	-	-	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	Yes	n/a	n/a	n/a	Yes
Ringer ID	Yes	n/a	n/a	n/a	Yes
Voice Dialing	Yes	n/a	n/a	n/a	Yes
Customization
Custom Graphics	Yes	n/a	n/a	n/a	Yes
Custom Ringtones	Yes	n/a	n/a	n/a	Yes
Real-Music Ringers	-	n/a	n/a	n/a	Yes
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	Yes
WAP / Web Browser	Yes	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	Yes	Yes	-	-
Messaging
Email Client	-	n/a	n/a	n/a	Yes
EMS / Picture Messaging	-	n/a	n/a	n/a	Yes
Instant Messaging	-	n/a	n/a	n/a	Yes
MMS	-	n/a	n/a	n/a	Yes
Text Messaging Templates	Yes	n/a	n/a	n/a	Yes
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	-
Music Player	Yes	n/a	n/a	n/a	-
Photo & Video
TV Output	-	-	-	Yes	-
Power
Wireless Charging	-	-	Yes	-	-
Productivity
Alarm	Yes	n/a	n/a	n/a	Yes
Calculator	Yes	n/a	n/a	n/a	Yes
Calendar	Yes	n/a	n/a	n/a	Yes
To-Do List	Yes	n/a	n/a	n/a	-
Voice Memo	Yes	n/a	n/a	n/a	Yes
Software
Games	Yes	n/a	n/a	n/a	Yes
Java (J2ME)	Yes	n/a	n/a	n/a	Yes
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung MM-A900 / SPH-A900 / Ace	Pantech Duo C810	Nokia Lumia 810	Apple iPhone 4 (GSM)	Motorola RAZR V3
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung MM-A900 / SPH-A900 / Ace	Pantech Duo C810	Nokia Lumia 810	Apple iPhone 4 (GSM)	Motorola RAZR V3