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Phone	Samsung SGH-X640	Samsung SCH-A790 / SCH-A795 / IP-A790	Motorola RAZR V3c	Pantech Matrix Pro C820	Apple iPhone 4 (GSM)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	?	2.4" diag. 4 : 3	3.5" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	800 mAh	?	740 mAh	1,320 mAh	?
Processor	?	?	?	528 MHz ARM 11	Apple A4
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	32 GB *
Main Camera	Yes	Yes	1 megapixel	2 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	?	QCIF (176 x 144)	720p HD
Front Camera	-	-	-	-	Yes
Weight	3 oz (85g)	4.2 oz (119g)	3.49 oz (99g)	5.34 oz (151g)	4.8 oz (136g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.4" x 2" x 1" (86 x 51 x 25.4 mm)	3.9" x 2.1" x 0.6" (99 x 53 x 15.2 mm)	4.2" x 2" x 0.9" (107 x 51 x 22.9 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)
Form Factor	Clamshell	Clamshell	Clamshell	Slide	Slab
Platform / OS	(proprietary)	(proprietary)	(proprietary)	Windows Mobile Standard	iOS
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1900 GSM: 900, 1800	CDMA: 850, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900
Data Technology	GPRS	1xRTT	EVDO r0	HSDPA 3.6	HSPA 7.2
Features
GPS / Location	-	Yes	Yes	n/a	n/a
Accessibility
Adjustable Text Size	-	-	-	n/a	n/a
Hearing Aid Compatible	-	-	Yes M3 (mostly compatible)	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	Yes	-	-
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	-	-	Yes	Yes	Yes
Mobile Hotspot	-	-	-	n/a	n/a
USB	-	-	Yes Mini-USB	Yes	Yes
Wi-Fi	-	-	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	Yes	Yes	n/a	n/a
Ringer ID	Yes	-	Yes	n/a	n/a
Voice Dialing	-	Yes	Yes	n/a	n/a
Customization
Custom Graphics	Yes	Yes	Yes	n/a	n/a
Custom Ringtones	Yes	Yes	Yes	n/a	n/a
Real-Music Ringers	-	-	Yes	n/a	n/a
Data & Network
Data Tethering	-	Yes	Yes	n/a	n/a
WAP / Web Browser	Yes	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	-	-	-	-	Yes Capacitive
Memory
Memory Card Slot	-	-	-	Yes	-
Messaging
Email Client	-	-	-	n/a	n/a
EMS / Picture Messaging	Yes	-	Yes	n/a	n/a
Instant Messaging	-	-	-	n/a	n/a
MMS	Yes	Yes	Yes	n/a	n/a
Text Messaging Templates	Yes	Yes	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	-	-	Yes
Music Player	-	-	-	n/a	n/a
Photo & Video
TV Output	-	-	-	-	Yes
Productivity
Alarm	Yes	Yes	Yes	n/a	n/a
Calculator	Yes	Yes	Yes	n/a	n/a
Calendar	Yes	Yes	Yes	n/a	n/a
To-Do List	Yes	Yes	-	n/a	n/a
Voice Memo	Yes	Yes	Yes	n/a	n/a
Software
BREW	-	Yes	Yes	n/a	n/a
Games	Yes	Yes	Yes	n/a	n/a
Java (J2ME)	Yes	-	-	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	Yes	-	n/a	n/a
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-X640	Samsung SCH-A790 / SCH-A795 / IP-A790	Motorola RAZR V3c	Pantech Matrix Pro C820	Apple iPhone 4 (GSM)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Samsung SCH-A790 / SCH-A795 / IP-A790	Motorola RAZR V3c	Pantech Matrix Pro C820	Apple iPhone 4 (GSM)