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Phone	Samsung SGH-X640	Motorola RAZR V3c	Motorola RIZR Z6tv	Samsung Galaxy S II Skyrocket	Apple iPhone 4 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	2" diag. 4 : 3	4.5" diag. 5 : 3	3.5" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	480 x 800 pixels (~207 ppi) AMOLED	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	60 Hz
Battery	800 mAh	740 mAh	940 mAh	1,850 mAh	?
Processor	?	?	?	1.5 GHz Qualcomm Snapdragon S3 APQ8060	?
RAM	?	?	?	1 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	16 GB	8 GB *
Main Camera	Yes	1 megapixel	2 megapixel	8 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	?	1080p HD	720p HD
Front Camera	-	-	-	2 megapixel	Yes
Weight	3 oz (85g)	3.49 oz (99g)	3.7 oz (105g)	4.71 oz (133g)	4.8 oz (136g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.9" x 2.1" x 0.6" (99 x 53 x 15.2 mm)	4.15" x 1.79" x 0.64" (105 x 46 x 16.3 mm)	5.12" x 2.72" x 0.35" (130 x 69 x 9 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)
Form Factor	Clamshell	Clamshell	Slide	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	(proprietary)	Android	iOS
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 4, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	GPRS	EVDO r0	EVDO r0	LTE (Cat 3)	EVDO rA
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 (mostly compatible)	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	-
Alerts
Extra Display	-	Yes	-	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Mobile Hotspot	-	-	-	n/a	n/a
NFC	-	-	-	Yes	-
USB	-	Yes Mini-USB	Yes	Yes Micro-USB	Yes
Wi-Fi	-	-	-	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	Yes	Yes	n/a	n/a
Ringer ID	Yes	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
Touch Screen	-	-	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	-	Yes	Yes	-
Messaging
Email Client	-	-	-	n/a	n/a
EMS / Picture Messaging	Yes	Yes	Yes	n/a	n/a
Instant Messaging	-	-	Yes	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	Yes
Music Player	-	-	Yes	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	-
TV Output	-	-	-	Yes	Yes
Video Calling	-	-	-	n/a	n/a
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	-	-	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	Yes
	Samsung SGH-X640	Motorola RAZR V3c	Motorola RIZR Z6tv	Samsung Galaxy S II Skyrocket	Apple iPhone 4 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Motorola RAZR V3c	Motorola RIZR Z6tv	Samsung Galaxy S II Skyrocket	Apple iPhone 4 (CDMA)