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Phone	Samsung SGH-E640	Motorola ROKR Z6	HTC Droid Eris	Casio G'zOne Boulder	Samsung Galaxy Stratosphere II
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	3.2" diag. 5 : 3	2" diag. 4 : 3	4" diag. 5 : 3
Display Resolution & Type	176 x 220 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	800 mAh	750 mAh	1,300 mAh	810 mAh	1,800 mAh
Processor	?	?	528 MHz MSM7600	?	1.2 GHz Qualcomm Snapdragon S4 Plus MSM8960
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	1 megapixel	2 megapixel	5 megapixel	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	?	CIF (352 x 288)	?	720p HD
Front Camera	-	-	-	-	1 megapixel
Weight	3.17 oz (90g)	4.06 oz (115g)	4.43 oz (126g)	4.9 oz (139g)	5.43 oz (154g)
Dimensions	3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm)	4.15" x 1.79" x 0.63" (105 x 45 x 16 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	3.9" x 2" x 0.9" (99 x 51 x 22.9 mm)	4.97" x 2.58" x 0.53" (126 x 66 x 13.5 mm)
Form Factor	Clamshell	Slide	Slab	Clamshell	Slide
Platform / OS	(proprietary)	(proprietary)	Android	(proprietary)	Android
Network Bands	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 13 WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	GPRS	EDGE	EVDO rA	EVDO rA	LTE (Cat 3)
Features
Flashlight	-	-	-	Yes	-
GPS / Location	-	-	n/a	Yes	n/a
Ruggedized	-	-	-	Yes	-
Water-Resistant	-	-	-	Yes	-
Accessibility
Adjustable Text Size	-	-	n/a	-	n/a
Hearing Aid Compatible	-	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	Yes	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	-	Yes	-
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	-	-	n/a	-	n/a
NFC	-	-	-	-	Yes
USB	Yes	Yes	Yes Mini-USB	Yes	Yes
Wi-Fi	-	-	Yes 802.11 b,g	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	Yes	Yes	n/a	Yes	n/a
Ringer ID	Yes	Yes	n/a	Yes	n/a
Voice Dialing	-	-	n/a	Yes	n/a
Customization
Changeable Body Plates	-	-	-	Yes	-
Custom Graphics	Yes	Yes	n/a	Yes	n/a
Custom Ringtones	Yes	Yes	n/a	Yes	n/a
Real-Music Ringers	Yes	Yes	n/a	-	n/a
Data & Network
Data Tethering	-	Yes	n/a	Yes	n/a
WAP / Web Browser	Yes	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	Yes	Yes
Messaging
Email Client	Yes	Yes	n/a	-	n/a
EMS / Picture Messaging	Yes	Yes	n/a	Yes	n/a
Instant Messaging	-	Yes	n/a	-	n/a
MMS	Yes	Yes	n/a	Yes	n/a
Text Messaging Templates	Yes	Yes	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	Yes	Yes	n/a	Yes	n/a
Photo & Video
DLNA	-	-	-	-	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	-	n/a
Voice Memo	Yes	Yes	n/a	Yes	n/a
Software
BREW	-	-	n/a	Yes	n/a
Games	Yes	Yes	n/a	Yes	n/a
Java (J2ME)	Yes	Yes	n/a	-	n/a
Voice
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SGH-E640	Motorola ROKR Z6	HTC Droid Eris	Casio G'zOne Boulder	Samsung Galaxy Stratosphere II
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-E640	Motorola ROKR Z6	HTC Droid Eris	Casio G'zOne Boulder	Samsung Galaxy Stratosphere II