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Phone	Samsung SPH/SCH-N300	Samsung SGH-X640	Samsung Galaxy S II, Epic 4G Touch	Cal-Comp EZ	Samsung Galaxy Stratosphere II
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	4.5" diag. 5 : 3	?	4" diag. 5 : 3
Display Resolution & Type	128 x 64 pixels	128 x 160 pixels LCD (TFT/TFD)	480 x 800 pixels (~206 ppi) AMOLED	128 x 128 pixels LCD (STN)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	?	800 mAh	1,800 mAh	800 mAh	1,800 mAh
Processor	?	?	1.2 GHz Samsung Exynos C210 dual-core	?	1.2 GHz Qualcomm Snapdragon S4 Plus MSM8960
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	16 GB	? raw hardware	8 GB
Main Camera	-	Yes	8 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	1080p HD	-	720p HD
Front Camera	-	-	2 megapixel	-	1 megapixel
Weight	4.1 oz (116g)	3 oz (85g)	4.55 oz (129g)	2.47 oz (70g)	5.43 oz (154g)
Dimensions	4.5" x 1.9" x 0.9" (114 x 48 x 22.9 mm)	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	5.1" x 2.7" x 0.38" (130 x 69 x 9.6 mm)	4.04" x 1.71" x 0.63" (103 x 43 x 16 mm)	4.97" x 2.58" x 0.53" (126 x 66 x 13.5 mm)
Form Factor	Flip	Clamshell	Slab	Slab	Slide
Platform / OS	(proprietary)	(proprietary)	Android	(proprietary)	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	GSM: 900, 1800, 1900	4G WiMAX: 41 CDMA: 800, 850, 1900 *	CDMA: 850, 1900	4G LTE: 13 WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	-	GPRS	WiMAX	1xRTT	LTE (Cat 3)
Features
GPS / Location	Yes	-	n/a	Yes	n/a
Accessibility
Adjustable Text Size	-	-	n/a	-	n/a
Hearing Aid Compatible	-	-	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M3 (mostly compatible)
Multiple Languages	-	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	-	-	Yes	-	Yes
Connectivity
Bluetooth	-	-	Yes	-	Yes
Mobile Hotspot	-	-	n/a	-	n/a
NFC	-	-	-	-	Yes
USB	-	-	Yes Micro-USB	Yes Mini-USB	Yes
Wi-Fi	-	-	Yes 4 (802.11 a,b,g,n)	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	-	Yes	n/a	-	n/a
Ringer ID	-	Yes	n/a	-	n/a
Voice Dialing	Yes	-	n/a	-	n/a
Customization
Custom Graphics	-	Yes	n/a	-	n/a
Custom Ringtones	-	Yes	n/a	-	n/a
Real-Music Ringers	-	-	n/a	-	n/a
Data & Network
Data Tethering	Yes	-	n/a	-	n/a
WAP / Web Browser	Yes	Yes	n/a	-	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	-	n/a
Side Keys	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	n/a	-	n/a
Instant Messaging	-	-	n/a	-	n/a
MMS	-	Yes	n/a	-	n/a
Text Messaging Templates	-	Yes	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	-	-	n/a	-	n/a
Photo & Video
DLNA	-	-	Yes	-	Yes
TV Output	-	-	Yes	-	-
Productivity
Alarm	Yes	Yes	n/a	Yes	n/a
Calculator	Yes	Yes	n/a	Yes	n/a
Calendar	Yes	Yes	n/a	Yes	n/a
To-Do List	Yes	Yes	n/a	Yes	n/a
Voice Memo	-	Yes	n/a	Yes *	n/a
Software
Games	Yes	Yes	n/a	-	n/a
Java (J2ME)	-	Yes	n/a	-	n/a
Voice
Headset Jack (2.5 mm)	Yes	Yes	n/a	Yes	n/a
Speaker Phone	-	Yes	Yes	-	Yes
	* Some versions only
	Samsung SPH/SCH-N300	Samsung SGH-X640	Samsung Galaxy S II, Epic 4G Touch	Cal-Comp EZ	Samsung Galaxy Stratosphere II
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH/SCH-N300	Samsung SGH-X640	Samsung Galaxy S II, Epic 4G Touch	Cal-Comp EZ	Samsung Galaxy Stratosphere II