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Phone	Samsung Transform	Samsung SPH-A660 / VI660	ZTE Z431 / Altair	Cricket Ovation / AT&T Radiant Max	Pantech Duo C810
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	6.5" diag. 19.5 : 9	2.2" diag. 4 : 3
Display Resolution & Type	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (Color)	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)	720 x 1560 pixels (~264 ppi) LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	60 Hz	?
Battery	1,500 mAh	?	1,000 mAh	4,000 mAh	1,320 mAh
Processor	800 MHz Samsung S3C6410, Qualcomm QSC6085	?	?	2 GHz MediaTek Helio P22 (MT6762)	ARM 920t PXA27x
RAM	?	?	?	3 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	32 GB	? raw hardware
Main Camera	3 megapixel	-	2 megapixel	13 megapixel	1 megapixel
Wide Camera	-	-	-	5 megapixel	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	-	QVGA (320 x 240)	1080p HD	QVGA (320 x 240)
Front Camera	Yes	-	-	8 megapixel	-
Weight	5.37 oz (152g)	3.54 oz (100g)	3.52 oz (100g)	6.18 oz (175g)	3.88 oz (110g)
Dimensions	4.61" x 2.42" x 0.61" (117 x 61 x 15.5 mm)	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm)	6.71" x 3" x 0.35" (170 x 76 x 8.9 mm)	4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm)
Form Factor	Slide	Clamshell	Slab	Slab	Slide
Platform / OS	Android	(proprietary)	(proprietary)	Android	Windows Mobile Standard
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 14, 29, 30, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	EVDO rA	1xRTT	?	LTE (Cat 4)	HSDPA 1.8
Features
Fingerprint Reader	-	-	-	Yes stand-alone	-
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	Yes	Yes	n/a	n/a
Accessibility
Hearing Aid Compatible	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	-
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Ringer Profiles	-	-	Yes	-	Yes
Connectivity
Bluetooth	Yes	-	Yes	Yes	Yes
NFC	-	-	-	Yes	-
USB	Yes Micro-USB	-	Yes Micro-USB	Yes USB Type C	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	Yes 5 (802.11 a,ac,b,g,n)	-
Contacts
Picture ID	n/a	Yes	Yes	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	Yes	-	n/a	n/a
Customization
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	-	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	Yes	-	Yes
Touch Screen	Yes Capacitive	-	-	Yes Capacitive	-
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	n/a	-	Yes	n/a	n/a
Instant Messaging	n/a	-	-	n/a	n/a
MMS	n/a	-	Yes	n/a	n/a
Text Messaging Templates	n/a	-	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	-
Music Player	n/a	-	Yes	n/a	n/a
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	Yes	-	n/a	n/a
Voice Memo	n/a	Yes	Yes	n/a	n/a
Software
BREW	n/a	-	Yes	n/a	n/a
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	Yes	-	n/a	n/a
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	n/a	Yes	-	n/a	n/a
Speaker Phone	Yes	-	Yes	Yes	Yes
	Samsung Transform	Samsung SPH-A660 / VI660	ZTE Z431 / Altair	Cricket Ovation / AT&T Radiant Max	Pantech Duo C810
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Transform	Samsung SPH-A660 / VI660	ZTE Z431 / Altair	Cricket Ovation / AT&T Radiant Max	Pantech Duo C810