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Phone	LG Optimus Zone	AT&T Vista	ZTE Maven 3 / Overture 3 / Prelude+	ZTE Speed	Samsung SCH-A990
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.2" diag. 4 : 3	5.5" diag. 18 : 9	5" diag. 16 : 9	4.5" diag. 16 : 9	?
Display Resolution & Type	240 x 320 pixels (~125 ppi) LCD (TFT/TFD)	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	60 Hz	60 Hz	60 Hz	?
Battery	1,540 mAh	2,450 mAh	2,070 mAh	2,000 mAh	1,000 mAh
Processor	800 MHz Qualcomm Snapdragon S1 MSM7625A	2 GHz MediaTek Helio A22 (MT6761V)	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	1.2 GHz Qualcomm Snapdragon 410 MSM8916	?
RAM	512 MB	3 GB	2 GB *	1 GB	?
Storage	4 GB	32 GB	16 GB *	8 GB	? raw hardware
Main Camera	3 megapixel	8 megapixel	5 megapixel	5 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	VGA (640 x 480)	1080p HD	720p HD	720p HD	?
Front Camera	-	5 megapixel	2 megapixel	2 megapixel	-
Weight	3.88 oz (110g)	5.51 oz (156g)	5.53 oz (157g)	4.8 oz (136g)	4.4 oz (125g)
Dimensions	4.04" x 2.42" x 0.47" (103 x 61 x 11.9 mm)	5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm)	5.73" x 2.85" x 0.39" (146 x 72 x 9.9 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)
Form Factor	Slab	Slab	Slab	Slab	Clamshell
Platform / OS	Android	Android	Android	Android	(proprietary)
Network Bands	CDMA: 850, 1900	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	CDMA: 850, 1900
Data Technology	EVDO rA	LTE (Cat 4)	LTE (Cat 4)	LTE (Cat 3)	EVDO r0
Features
Flashlight	-	Yes	Yes	-	Yes
GPS / Location	n/a	n/a	n/a	n/a	Yes
Accessibility
Adjustable Text Size	n/a	n/a	n/a	n/a	-
Hearing Aid Compatible	Yes M4 (very compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	n/a	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	n/a	n/a	n/a	n/a	-
USB	Yes Micro-USB	Yes USB Type C	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	Yes	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	n/a	n/a	n/a	Yes
Ringer ID	n/a	n/a	n/a	n/a	Yes
Voice Dialing	n/a	n/a	n/a	n/a	Yes
Customization
Custom Graphics	n/a	n/a	n/a	n/a	Yes
Custom Ringtones	n/a	n/a	n/a	n/a	Yes
Real-Music Ringers	n/a	n/a	n/a	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	n/a	n/a	Yes
WAP / Web Browser	n/a	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	Yes Capacitive	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	n/a	n/a	n/a	-
EMS / Picture Messaging	n/a	n/a	n/a	n/a	Yes
Instant Messaging	n/a	n/a	n/a	n/a	-
MMS	n/a	n/a	n/a	n/a	Yes
Text Messaging Templates	n/a	n/a	n/a	n/a	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	Yes	Yes	Yes	-
Music Player	n/a	n/a	n/a	n/a	Yes
Stereo Speakers	-	-	-	-	Yes
Photo & Video
TV Output	-	-	-	-	Yes
Productivity
Alarm	n/a	n/a	n/a	n/a	Yes
Calculator	n/a	n/a	n/a	n/a	Yes
Calendar	n/a	n/a	n/a	n/a	Yes
Voice Memo	n/a	n/a	n/a	n/a	Yes
Software
BREW	n/a	n/a	n/a	n/a	Yes
Games	n/a	n/a	n/a	n/a	Yes
Voice
HD Voice	-	Yes	Yes	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	LG Optimus Zone	AT&T Vista	ZTE Maven 3 / Overture 3 / Prelude+	ZTE Speed	Samsung SCH-A990
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	LG Optimus Zone	AT&T Vista	ZTE Maven 3 / Overture 3 / Prelude+	ZTE Speed	Samsung SCH-A990