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Phone	Samsung Jack i637	Apple iPhone 4 (GSM)	Motorola Backflip	Sony Ericsson K850	Sony Ericsson W300 / Z530
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	3.1" diag. 5 : 3	2.2" diag. 4 : 3	?
Display Resolution & Type	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	?	?
Battery	1,480 mAh	?	1,400 mAh	?	?
Processor	?	Apple A4	528 MHz Qualcomm MSM7201a	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	32 GB *	? raw hardware	? raw hardware	? raw hardware
Main Camera	3 megapixel	5 megapixel	5 megapixel	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	720p HD	CIF (352 x 288)	?	?
Front Camera	-	Yes	-	-	-
Weight	3.6 oz (102g)	4.8 oz (136g)	4.7 oz (133g)	4.2 oz (119g)	3.32 oz (94g)
Dimensions	4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm)	4" x 1.9" x 0.7" (102 x 48 x 17.8 mm)	3.54" x 1.85" x 0.96" (90 x 47 x 24.4 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Clamshell
Platform / OS	Windows Mobile Standard	iOS	Android	(proprietary)	(proprietary)
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900 *
Data Technology	HSDPA 3.6	HSPA 7.2	HSPA 7.2	HSDPA 3.6	EDGE
Features
GPS / Location	n/a	n/a	n/a	-	-
Accessibility
Adjustable Text Size	n/a	n/a	n/a	-	-
Hearing Aid Compatible	Yes M3 (mostly compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	-	-
Multiple Languages	n/a	n/a	n/a	Yes	Yes
TTY/TDD (Digital)	-	Yes	-	Yes	-
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	Yes	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	n/a	n/a	n/a	-	-
USB	Yes	Yes	Yes Micro-USB	Yes	Yes
Wi-Fi	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	-	-
Contacts
Picture ID	n/a	n/a	n/a	Yes	Yes
Ringer ID	n/a	n/a	n/a	Yes	-
Voice Dialing	n/a	n/a	n/a	Yes	-
Customization
Custom Graphics	n/a	n/a	n/a	Yes	Yes
Custom Ringtones	n/a	n/a	n/a	Yes	Yes
Real-Music Ringers	n/a	n/a	n/a	Yes	Yes
Data & Network
Data Tethering	n/a	n/a	n/a	Yes	Yes
WAP / Web Browser	n/a	n/a	n/a	Yes	Yes
Input
Predictive Text Entry	n/a	n/a	n/a	Yes	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	n/a	Yes	Yes
Instant Messaging	n/a	n/a	n/a	-	Yes
MMS	n/a	n/a	n/a	Yes	Yes
Text Messaging Templates	n/a	n/a	n/a	Yes	-
Music
FM Radio	-	-	-	Yes	Yes
Headphone Jack (3.5mm)	-	Yes	Yes	-	-
Music Player	n/a	n/a	n/a	Yes	Yes
Photo & Video
TV Output	-	Yes	-	-	-
Video Calling	n/a	n/a	n/a	Yes *	-
Productivity
Alarm	n/a	n/a	n/a	Yes	Yes
Calculator	n/a	n/a	n/a	Yes	Yes
Calendar	n/a	n/a	n/a	Yes	Yes
To-Do List	n/a	n/a	n/a	Yes	Yes
Voice Memo	n/a	n/a	n/a	Yes	Yes
Software
Games	n/a	n/a	n/a	Yes	Yes
Java (J2ME)	n/a	n/a	n/a	Yes	Yes
Voice
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung Jack i637	Apple iPhone 4 (GSM)	Motorola Backflip	Sony Ericsson K850	Sony Ericsson W300 / Z530
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Jack i637	Apple iPhone 4 (GSM)	Motorola Backflip	Sony Ericsson K850	Sony Ericsson W300 / Z530