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Phone	Samsung SCH-A990	Samsung Ace SPH-i325	Coolpad Defiant	Samsung SCH-A645	ZTE ZMAX 2
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.3" diag. 4 : 3	5" diag. 16 : 9	?	5.5" diag. 16 : 9
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	320 x 240 pixels (~174 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	720 x 1280 pixels (~267 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	1,000 mAh	1,300 mAh	2,450 mAh	1,000 mAh	3,000 mAh
Processor	?	416 MHz PXA270	1.4 GHz Qualcomm Snapdragon 425 (MSM8917)	?	1.2 GHz Qualcomm Snapdragon 400 (MSM8916)
RAM	?	?	1 GB	?	2 GB
Storage	? raw hardware	? raw hardware	8 GB	? raw hardware	16 GB
Main Camera	3 megapixel	1 megapixel	5 megapixel	-	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QVGA (320 x 240)	720p HD	-	720p HD
Front Camera	-	-	2 megapixel	-	2 megapixel
Weight	4.4 oz (125g)	3.9 oz (111g)	6.5 oz (184g)	3.2 oz (91g)	5.99 oz (170g)
Dimensions	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	4.65" x 2.32" x 0.46" (118 x 59 x 11.7 mm)	5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm)	3.54" x 1.79" x 0.94" (90 x 45 x 23.9 mm)	6.06" x 2.99" x 0.37" (154 x 76 x 9.4 mm)
Form Factor	Clamshell	Slab	Slab	Clamshell	Slab
Platform / OS	(proprietary)	Windows Mobile Standard	Android	(proprietary)	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900 GSM: 900, 1800	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	4G LTE: 2, 4, 5, 12 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	EVDO r0	EVDO r0	LTE (Cat 4)	1xRTT	LTE (Cat 4)
Features
Flashlight	Yes	-	Yes	-	-
GPS / Location	Yes	n/a	n/a	Yes	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 M4, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	-	Yes	-
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	-	n/a	n/a	-	n/a
USB	Yes	Yes	Yes Micro-USB	-	Yes Micro-USB
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	-	n/a
Voice Dialing	Yes	n/a	n/a	Yes	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	Yes	n/a	n/a	-	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	-	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes *	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	-	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	-	n/a	n/a	-	n/a
EMS / Picture Messaging	Yes	n/a	n/a	Yes	n/a
Instant Messaging	-	n/a	n/a	-	n/a
MMS	Yes	n/a	n/a	-	n/a
Text Messaging Templates	Yes	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	-	Yes
Music Player	Yes	n/a	n/a	-	n/a
Stereo Speakers	Yes	-	-	-	-
Photo & Video
TV Output	Yes	-	-	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	Yes	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	Yes	n/a
Software
BREW	Yes	n/a	n/a	Yes *	n/a
Games	Yes	n/a	n/a	Yes *	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SCH-A990	Samsung Ace SPH-i325	Coolpad Defiant	Samsung SCH-A645	ZTE ZMAX 2
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SCH-A990	Samsung Ace SPH-i325	Coolpad Defiant	Samsung SCH-A645	ZTE ZMAX 2