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Specifications
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Phone	ZTE Prelude / Avail 2	Sanyo Vero	Casio G'zOne Rock	Samsung SGH-D520	Samsung Galaxy Stratosphere II
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.5" diag. 5 : 3	2.4" diag. 4 : 3	2.1" diag. 4 : 3	?	4" diag. 5 : 3
Display Resolution & Type	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	240 x 320 pixels (~190 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	1,500 mAh	840 mAh	1,150 mAh	800 mAh	1,800 mAh
Processor	1 GHz Qualcomm Snapdragon MSM7225A	?	?	?	1.2 GHz Qualcomm Snapdragon S4 Plus MSM8960
RAM	512 MB	?	?	?	1 GB
Storage	4 GB	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	2 megapixel	1 megapixel	2 megapixel	1 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	VGA (640 x 480)	-	?	CIF (352 x 288)	720p HD
Front Camera	-	-	-	-	1 megapixel
Weight	4.4 oz (125g)	3.4 oz (96g)	4.4 oz (125g)	3.32 oz (94g)	5.43 oz (154g)
Dimensions	4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm)	3.78" x 2.05" x 0.63" (96 x 52 x 16.1 mm)	4.1" x 2" x 0.9" (104 x 51 x 22.9 mm)	3.98" x 1.81" x 0.63" (101 x 46 x 16 mm)	4.97" x 2.58" x 0.53" (126 x 66 x 13.5 mm)
Form Factor	Slab	Clamshell	Clamshell	Slide	Slide
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	WCDMA: 2, 5 GSM: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900	GSM: 900, 1800, 1900	4G LTE: 13 WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	HSPA 7.2	1xRTT	EVDO rA	GPRS	LTE (Cat 3)
Features
Flashlight	-	-	Yes	-	-
GPS / Location	n/a	Yes	Yes	-	n/a
Ruggedized	-	-	Yes	-	-
Water-Resistant	-	-	Yes	-	-
Accessibility
Adjustable Text Size	n/a	Yes	-	-	n/a
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	-	Yes M3 (mostly compatible)
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	-	Yes	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	n/a	-	-	-	n/a
NFC	-	-	-	-	Yes
USB	Yes	Yes Micro-USB	Yes	-	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	n/a	Yes	Yes	Yes	n/a
Ringer ID	n/a	Yes	Yes	Yes	n/a
Voice Dialing	n/a	Yes	Yes	-	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	-	Yes	-	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	Yes	n/a
External Antenna Jack	n/a	-	-	Yes	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	-	Yes
Messaging
Email Client	n/a	-	Yes	Yes	n/a
EMS / Picture Messaging	n/a	Yes	-	-	n/a
Instant Messaging	n/a	-	Yes	-	n/a
MMS	n/a	-	Yes	Yes	n/a
Text Messaging Templates	n/a	Yes	Yes	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	-	Yes	-	n/a
Photo & Video
DLNA	-	-	-	-	Yes
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	Yes	-	Yes	n/a
Voice Memo	n/a	Yes	Yes	Yes	n/a
Software
BREW	n/a	-	Yes	-	n/a
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	Yes	-	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	Yes	-	n/a
Push-To-Talk	-	-	Yes	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	ZTE Prelude / Avail 2	Sanyo Vero	Casio G'zOne Rock	Samsung SGH-D520	Samsung Galaxy Stratosphere II
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Prelude / Avail 2	Sanyo Vero	Casio G'zOne Rock	Samsung SGH-D520	Samsung Galaxy Stratosphere II